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Eaton Compressor & Fabrication C-STOV-MC001-E1 User's Manual

Contents

1. Pressure 345 bar 5000 PSI Model 32107 In Line Relief Valve Pilot Operated Cartridge T P Specifications j M ax Flow Through Relief Valve 75 7 l min qe 20 GPM D m Relief Valve P Setting Range 103 241 bar 1500 3500 PSI Housing Rated Pressure 345 bar 5000 PSI Model 32112 In Line Relief Valve Specifications Max Flow Through E n E Relief Valve 1325 l min 177 35 GPM AAA De Relief Valve Setting Range 69 241 bar T 1000 3500 PSI Housing Rated Pressure 345 bar 5000 PSI Comprehensive Relief Valve Description see Eaton Relief Valve Catalog 11 510 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 71 Steering System Components Columns Product Description CharLynn columns can be custom built to your exact specifications The column and mounting flange is of a sturdy single weldment design These columns have high thrust and side load capacity with low shaft tor tional friction Columns are painted with low gloss black finish and the shafts are phosphate coated and oil dipped for corrosion protection Features Low friction bearings to carry thrust and side loads dust boot to protect against dirt and moisture Four jacket types are available Two lower ends and ten upper ends are available Two different hom wire configurations available from 56 to 825 mm 2 2 to 32 5 inch pre assembled to steering
2. units per your request SPECIFICATIONS Rated Tortional 81N m 60 Ib ft Rated Bending M oment 136 Nm 100 Ib ft Rated Radial Load 86 kg 150 Ib Rated Axial Load 86 kg 150 Ib Tortional Friction Drag 0 23 kg 2 Ib in Recommended Wheel Nut Torque 47 Nm 35 lb ft Bending moments are taken about the plane of the column mounting surface Radial load at the bearing centerline must not exceed the horizontal bending moment rating Five Steps for How to Order Your Column Select J acket Base Type Select Lower Shaft Type Ln 4 UN Hn Select Add On Features a Horn Wire b Wire Ends Select Upper Shaft End Type Select Length use suggested standard length Please contact your Eaton Representative if any request differs from our catalog offerings 72 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Shaft End of Bearin d M ounting Flange Surface Use non soap base grease for column spline steering unit interface L s s T Steering System Components Columns Model Code Ordering Information The following 22 digit coding system has been developed to identify all of the configuration options for steering columns Use this model code to specify a steering column with the desired features All 22 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct
3. HX u Torque Generator Case Drain Direct M echanical Link Torque Generator Product Information Control End Valve Sleeve Housing Port Valve Spacer Geer Housing Power End Geroler Power End L 7 with N eedle Bearing Option J d g d g Shaft Input e Shaft Valve Spool und Output EN N H V T IA Mp AA A y o y b ed H WM d G H O i m V l ees P LL E H W f TTL NR l a H EJ T Centering AN E Quad Springs J Seal EE Shaft Spacer X Static Spacer Needle Seal Pin Drive Plate Seals 4 Plate Drive Bearings SPECIFICATIONS 217 SERIES GEROTOR UNIT COMMON SPECIFICATIONS 217 AND 227 SERIES Displacement cm3 r in3 r 76 4 7 96 5 9 160 9 7 Rated Flow 15 1 l min 4 GPM Torque Output 62 Nm 79 Nm 124 Nm M ax System at 70 bar 1000 PS1 550 Ib in 700 Ib in 1100 Ib in Operating Temperature 93 C 200 F Recommended Flow 114 l min 13 2 l min 13 9 l min Input Torque Powered 1 6 2 5 Nm 14 22 Ib in 3GPM X 35GPM 5 GPM Non Powered Max 136 Nm 100 Ib ft Max Operating Speed 125 RPM 118 RPM 102 RPM Output Shaft Side Load at at Rated Pressure and Keyway Centerline Recommended Flow without Bearing 23 kg 50 Ib with Bearing 272 kg 600 Ib SPECIFICATIONS 227 SERIES GEROLER UNIT Fluid Most petroleum hydraulic fluids se
4. Literature Referenced in this Catalog Eaton Technical Bulletin 3 401 e Eaton Flow Divider Catalog E VLFL M COO1 E Eaton Relief Valve Catalog 11 510 Eaton Gear Pumps Series 26 Model 26000 Catalog 11 609 e Eaton CharLynn Low Speed High Torque Motors Catalog E M OLO M COOT E2 e Vickers Screw in Cartridge Values Catalog V VLOV M COOT E2 e Vickers Proportional Valves Catalog 539 Vickers Solenoid Operated Directional Valves Catalog GB C 2015 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Table of Contents Description and Technologies About Power Steering D Scription and Advantages EE 4 Hydra lic Circuit Explanatio aci n rica H A R ne EEEEEER 6 11 Neutral Circuits Open Center acond ARA 6 Operi Center Power Beyond 1220 kin k ENNEN tee eb RE EEN AN bea ey R R ENEE H A 6 Closed Center EE adie Ud Jade Nea ade dE ian adnan a A 7 Load Sensing static and dynamic sign 8 Work Circuits Non Load Reactionia 2 ss rs S pid e diane ie her bese dake Se dee 4 IO beeen P XI Rai 11 Load Reaction EE 11 Steering Units with Integral Valves EE 12 Special Features and Application 37224 s dass Reb ee ceed deed au l a E gd E Arga P Ee 13 18 E EE ie Le VEER 13 Spee smod ew UB eed ue ih rte d eed doe eda SE bs wien tends ede dda eke 14 EIER ee EEN 15 Eaton Patented Technologies Q Amp Flow geil lee e EE 16 Wide ole EE 18 Cylinder Dam pling 2 32e carr Sao heared ee Redes oR A A Aud dg acce
5. Column Load Port Port Mounting Sersing Mounting LS side port Thread iad Thread location changes 3 4 16 M 10 x 1 5 6H 7 16 20 M 12 x 1 75 6H Load Sensing Side Port witha LSR M 18 x 1 5 6H M 10 x 1 5 6H M 12 x 1 5 6H M 12 x 1 75 6H 44 45 44 34 STC M 10 x 1 5 6H STC M 12 x 1 75 6H 1 750 1 746 G 1 2 BSP M10x15 6H G1 4 BSP M12x1 75 6H Dia 83 8 Load Sensing Units Only 3 30 Dia M ax 8 89 8 39 350 330 94 0 3 70 M ax 2 05 3 36 081 132 SE 2 490 2 460 iis 361D21 301 32 M ax e 1 88 3067 2027 Load Sensin 37 08 36 32 1 460 1 430 l doom Side Port 63 12 62 62 2 485 2 465 m Load Sensing 48 8 56 13 55 37 2 210 2 180 PortFace 1 92 C 44 96 43 94 Max y 1 770 1 730 12 Tooth Involute Spline 16 32 D P 30 P A 14 2 56 Deep V F 1 83 8 ch ECCE Ba A THE i zl t Column Mounting Thread x 15 2 60 Deep 0n 825 b 22 48 21 98 45 Dia Bolt Circle Tank Pressure 885 865 Port M ounting Thread x 24 1 95 M in Deep 2 7 4 5 4 29 21 Spline T 10 2 40 M in Depth 7 1 28 M ax 60 51 59 49 Mating Spline Depth GE Displacemert 103 6 cm3 r DimersionC DimersionD 4 08 ir r mm in mm in ien He 60 3 6 10 2 40 138 1 5 44 2 310 2 290 15 4 5 10 2 40 138 1 5 44 95 5 9 13 21 52 141 1 5 56 45 0440 120 7 3 16 5 65 144 4 5 69 1 77 1 73 146 8 9 20 1 79 148 0 5 83 Max 159 9 7 21 8 86 149 9 5 90 94 0 185 11 3 25 4 1 00 15
6. bar PSI 1200 75 t 60 800 2 600 400 200 0 0 38 151 227 20 40 60 l min GPM bar PSI 15 R L SEI 240 AAA 200 1 7 160 10 8 120 6 80 4 gt 40 y 0 38 151 227 0 20 40 60 l min GPM 0 0 10 20 30 40 50 60 70 80 90 100 Standard Torque Percent Deflection 52 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 Torque Generator Product Description CharLynn torque generators have been completely redesigned to meet the needs of the changing marketplace These torque generators provide power assist for steering eliminating the large hand wheels on gate valves and provide powerful rotary motion with effortless manual rotary input on numerous other applications Features Today s market includes power steering on electric lift trucks CharLynn torque generators have been designed with features that greatly improve the operator s comfort as well as the vehicle s performance The increase in port surface area allows for the additional port requirement for units with the following features Power Beyond This version has three ports Inlet IN Tank OUT and Excess Flow EF In the power beyond configuration flow not used for priority steering exits the EF port and is available for the downstream reach function Flow used for steering will exit the OUT port to tank
7. Ho Valve Option A Closed Center System S _L _ JR 2 Gerotor Direct Metering Mechanical i Mechanism Link Es EE ON T P N with Steering Neutral Control Bleed Unit EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Hydraulic Circuit Explanation Neutral Circuits Load Sensing Load Sensing Circuits CharLynn load sensing power steering uses conventional or load sensing power supplies to achieve load sensing steering The use of a load sensing steering unit and a priority valve in a normal power steering circuit offers the following advantages Provides smooth pressure compensated steering because load variations in the steering circuit do not affect axle response or maximum steering rate Provides true power beyond system capability by splitting the system into two independent circuits Pressure transients are isolated in each circuit Only the flow required by the steering maneuver goes to the steering circuit Flow not required for steering is available for use in the auxiliary circuits Provides reliable operation because the steering circuit always has flow and pressure priority CharLynn load sensing steering control units and priority valves can be used with open center closed center or load sensing systems Use in an open center system with a fixed displ
8. N w gt SI Input Torque Curve 3 Nm 2 o 10 20 30 40 50 60 70 80 90 100 Percent Deflection Standard torque Low torque EATON Steering Catalog C STOV MCOOI E1 May 2006 27 Steering Control Units Series 5 Integral Column Option Integral Column Option Available in Square Housing with Side Ports and Round Housing with End Ports 40 Tooth Serrated Integral Column Option Shown on Round Housing with End Ports 29 36 0 25 1156 010 14 27 0 25 562 010 t 25 7 19 2 1 01 MAX 755 MAX F M16 x 15 69 Tapered 17919mm 7055in diameter 083 1 and serrated 9 1 36 MAX 175 688 diameter 40 tooth SI M 16x1 5 6g Extension length 65 02 2 56 12Tooth Intemal Spline Standard Mechanical Interface Shown on Round Housing with End Ports A 9 9 91 39 M IN 36 MAX F r 69 85 0 05 28 6 25 7 2 750 002 Dia 1 126 MAX Dia 1 01 MAX Dia 1 Internal Involute Spline 12 Tooth 16 32 D P 255 05 30 P A TuS 89 35 MIN 28 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 10 Product Description Eaton s Series 10 Steering Control Unit SCU facilitates hydraulic fluid flow like no other unit on the market This highly engineered product is the ultimate SCU for mid range flow applications Benefits T
9. Torque To 47daNm 35 lb ft Steering Column Square Series 5 and Series 10 9 5 m Y Dim on 3 25 82 5 Dia Two Bolts Must use two bolts through Bolt Circle 4 3 8 16 NC x See mounting bracket or Y 30 5 1 20 r i bulkhead and two bolts 7 through just the steering Port Ers Two Bolts column or four bolts through 3 8 16 NC x mounting bracket 19 0 75 or bulkhead Supplied with Column 459 44 4 1 75 Dia M ounting Bracket or Bulkhead Series 20 25 H 9 5 375 Dia Must use four bolts through mounting bracket or bulkhead Port Face Y Dim on 3 25 82 5 Dia Four Bolts 30 5 1 20 M ax Bolt Circle 4 3 8 16 NC x Y 30 5 1 20 27 2 1 07 Min Mounting Bracket or Bulkhead 44 4 1 75 Dia 80 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components Columns Product Information Round Series 5 Must use three bolts minimum Series 40 Must use three bolts Into steering control unit mounting bosses opposite port face Mounting Bracket or Bulkhead Cap Screw 1 41 5 1 635 Pilot Dia 59 00 2 323 Dia M 6 x 1 0 6H 18 5 73 Min Deep 4 Cap Screw 3 or 4 M 6 x W 12 2 48 12 2 48 M ax 7 5 30 M in 15 0 59 Note Series 40 is too heavy for column mounting use column with or without mounting tabs 13 4 53 M ax Z Dim Mounting Bracket
10. with Manual Steering t E 2 Speed with Wide Angle G 13 10 Ratio G ee Displacement with Wide with Manual Steering t ngle V Versa Steer Wide Angle tUse with closed center or 5 Nominal Flow Rating 1 11 l min 3 GPM load sensing only Een Center 11 Neutral Circuit A Open Center 2 3 l min 6 GPM C Closed Center Coses Center and LS D Load Sensing Static Signal 3 5 I min 12 GPM ng ate Sc CC and LS E Load Sensing Dynamic Signal 4 9 I min 5 GPM ONE F Pid 5 o Ke 10 GPM NEEN E 12 Load Circuit A Non Load Reaction 6 76 imin 20 GPM B Load Reaction Open Center 7 23 l min 6 GPM 3 8 30 l min 1 8 GPM Only Open Center D Non Load Reaction 6 Inlet Pressure Rating 1 276 bar 4000 PSI Load Cylinder Damped 2 207 bar EEN 13 14 Special Spool Sleeve 00 None Open center Modification 7 POM Pressure A a z PSI ins 15 16 Valve Options ating standard ratin Manual Load Inlet Cylinder Anti Inlet B 10 bar 145 St Max Steering Sensing Check Relief Cavitation Relief 8 9 Displacement 01 352 21 5 60 3 6 Check Relief Valve Valve Valve Valve cm3 r in3 r 02 218 13 3 60 3 6 01 Dual Displacement 03 290 177 60 3 6 Combined Manual 04 440 26 8 146 8 9 02 05 231 14 1 85 5 2 03 e 8 9 Displacement 40 60 3 6 04 e e e cm3 r in3 r 43 75 4 5 45 95 5 9 _ 48 120 73 06 e e e 50 145 8 9 1 8 GPM 07 s S 51 160 9 7 52 185 11 3 08 e e 54 230 14 1 09 n p 57 29
11. Three Bolts 1 2 13 UNC x Z 134 53 EATON Char Lynn Steering Catalog C STOV MCOOIL E1 J uly 2006 81 Steering System Components Steering Wheels and Accessories Horn Button Kit 1 6 Weather Cover Horn Button Contact Cup Horn Button Spring Contact Cup Screw Base Plate Assembly Y O UN 4 UY NE Steering Wheel No 209 1007 Nut Hex Steering Wheel Cap Nut Hex Steering Wheel Hub Section Upper Shaft End Configuration Thread See Page xx Xx Size Molded black wheel with three equally spaced EES spokes relatively flat without recessed hub Tour PT SV M18x15 diameter 430 mm 17 inch for column with upper shaft 14593 MJ M 20 x 1 5 end AJ or MJ 14603 CK CL M 16 x 1 5 Note Steering wheel hub has tapped holes for wheel puller 21084 AJ 13 16 20 UNF Horn Button Kit No 208 1013 For CharLynn steering column with serrated upper shaft end AJ or MJ and CharLynn 430 mm 17 inch steering wheel Cap No 209 1005 CharLynn steering wheel hub cavity cap for no horn installations used on steering wheel 209 1007 82 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components Steering Wheels and Accessories New Steering Wheels Eaton CharLynn offers three new steering wheels each with different features 209 1022 350mm 14in diameter 3 spoke steering wh
12. Applications Articulated Vehicles Loaders Scrapers Frame Vehicles Large Front End Loaders Large Graders Mining Trucks Articulated Haulers Transporters SPECIFICATIONS M ax System Pressure 241 bar 3500 PSI Max Back Pressure 21 bar 300 PSI Rated Flow 151 l min 40 GPM M ax Flow 212 l min 56 GP M M ax Differential Between Steering Unit 28 C and System Temperature 50 F Max System Operating Temperature 93 C 200 F Input Torque Powered 2 8 3 4 Nm 6 9 bar back pressure Non Powered 25 30 Ib in 100 PSI back pressure ttt Fluid ATF Type A and most petroleum based fluids Recommended Filtration ISO 18 13 cleanliness level ttt Manual steeringis not possible without hydraulic power EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 49 Steering Control Units Series 40 Model Code Ordering Information The following 29 digit coding system has been developed to identify all of the configuration options for the Series 40 steering control units Use this model code to specify a unit with the desired features All 29 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box 1234056 7 8 9101 12 13 4 15 16 17 18 19 20 21 22 23 24
13. Since steering has priority all flow if required will be diverted to steering The tank port of the steering unit has flow only when steering is operated Thus flow out of the auxiliary PB port and the tank port will fluctuate or stop depending on steering input 6 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 The following special considerations should be addressed when applying power beyond steering Auxiliary valves connected to PB must be open center type Slight bump or kick may be felt in steering wheel when auxiliary functions are activated during steering operations Pump flow not used for steering is available at power beyond PB outlet except at steering stops where total pump flow goes over the system relief valve Avoid auxiliary functions that require constant flow while steering Flow is only directed to the tank port when steering is operated Avoid systems where return flow from tank port is used for auxiliary functions Inlet pressure to the steering unit will be the higher of steering system pressure or auxiliary valve pressure Generally avoid systems where heavy use of auxiliary functions occur while steering Applications Lawn and Garden Equipment Utility Vehicles Fixed Displacement Pump peranan 1 eee E li 1 f A S
14. 16 17 Cylinder Relief 00 None Setting All low torque units need approval from an Eaton Steering Engineer Plug O ports rated to 103 bar 1500PSI 24 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 5 Installation Drawing Option 1 Square Housing with Side Ports refer to Model Code page 23 44 4 1 75 Dia Involute Spline Side View 12 Tooth 16 32 D P 30 P A PER SPC DS 023 2 406 1 60 MAX Displacement Dim A Max 3 09 M AX Code cm3 r ir r mm inch 35 315 1 92 123 4 4 86 37 39 5 2 41 125 2 4 93 39 50 8 3 10 124 2 4 89 41 63 1 3 85 126 2 4 97 43 73 8 4 50 128 0 5 04 46 100 0 6 10 132 3 5 21 48 120 0 7 33 135 4 5 33 Sectional Drawing THO tom a Relief Valve Check Manual Check Cylinder Relief Valve Anti Cavitation Valve Inlet Check Valve Shaft Bearing Centering Springs Sleeve Spool Gerotor Relief Valve Check Seal Race or Manual Check Dust Seal Gerotor Seal Housing Bearing Ball Pin Drive O ring SpacerPlate End Cap View of Gerotor Section EATON Steering Catalog C STOV MCOOI E1 May 2006 25 Steering Control Units Series 5 Installation Drawing Option 2 Round Housing with End Ports Involute Spline 12 Tooth 16 32 D P 30 P A 44 4 1 75 MAX 9 9 CR MIN 9 1 36 MAX mm 2 750 002 Dia 80 23 7 3 17 MAX 1 126
15. 39 50 8 cm3 r 3 10 in3 r Threads Use with Open Center 41 63 1 cm3 r 3 85 in3 r WBNH Round 5 x 06 STC Direct Ports 43 73 8 cm3 r 4 50 in3 r M6 x 1 0 Column Mounting 46 100 cm3 r 6 10 in3 r Threads Use with Excess Flow 35 120 cm3 r San WBPH Round 5 x 06 STC Direct Ports 9 Flow Amplification 0 None Ve SE GE 10 Neutral Circuit A Open Center M SASE I SES B Open Center Power Beyond 22 Input Torque 1 Gen E C Closed Center 3 tanda F Load Sensing Dynamic signal 23 Fluid Type A See Eaton Technical dl Load Circuit A Non Load Reaction 3 ia Watt Buleun 3 401 12 13 Valve Options 01 M anual Steering Check Valve specia PEINE ndis 04 Inlet Check Valve M anual 25 26 Special Feature AA None Steering Check Valve 27 Paint 1 Black Primer 05 Inlet Relief Valve A Manual Steering Check Valve 28 Identification 0 Eaton Product Number on Nameplate 12 R i ra 29 M echanical A Tapered 17919mm 7055in Anti cavitation Valve l WA inlet Relief Valve ve Interface diameter 083 1 and serrated Inlet Check Valve 17 5 688 diameter 40 tooth M Steeri Ch k Val M 16x1L5 6g Extension length anua eering eck Valve 65 02 2 56 14 15 Integral Inlet 00 None D Internal involute spline12 tooth Relief Valve 18 40 bar 580 PSI 16 32 DP 30 degree PA setting SS ad bu 30 Eaton Assigned B Assigned Design Code 26 70 bar 1020 PSI Design Cote 2G 80 bar 1160 PSI 2T 90 bar 1310 PSI 34 100 bar 1450 PSI 3W 125 bar 1812 PSI 4C 140 Bar 2030 PSI
16. 67 5 16 32 D P 30 P A 129 15 2 60 M in Deep 51 40 7 1 60 81 3 3 20 1 2 13 UNC x 13 4 53 Deep 3 1 2 13 UNC 13 5 53 Deep on 161 93 6 375 Dia Bolt Circle Load Sensing Unit Only Displacement D Max cm3 r in3 r mm in 1230 75 230 9 9 09 1555 95 245 9 9 68 1965 120 265 2 10 44 2460 150 288 3 11 35 3030 185 315 0 12 40 9 4 37 Min Depth 7 1 28 M ax Mating Spline Depth spp 7 4 4 8 30 20 Spline ja 5941371 Min 2701064 l 8 9 35 M ax us 5 00 4 98 1 85 3 63 073 143 5 28 Right 63 5 2 5 31 8 1 25 44 45 44 43 1 750 1 746 Dia Pressure 27 9 1 10 15 16 12 UN O ring Port 4 3 8 16 UNC x 63 5 2 5 15 2 60 Deep on 82 5 3 25 Dia Bolt Circle Load Sensing 86 1 3 39 7 16 20 UN F O ring Port 2 Plug in PP Port EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 51 Steering Control Units Series 40 Performance Data Average Pressure Drop Through Open Center Load Sensing and Closed Center at Full Valve Deflection Open Center Neutral Pressure Drop Fluid Viscosity 25 cSt 120 sus Input Torque Applications Articulated and Rigid Dump Trucks Mining Trucks Paving Equipment
17. 98 Code System Pressure Number bar PSI DD 83 1200 HE 120 1725 LA 138 2000 MC 150 2175 NC 160 2300 QA 172 2500 UA 207 3000 VD 230 3325 VK 240 3475 45 7 1 80 Le Control Pressure bar PSI Product Number m 69 0 2 72 29 5 1 16 93 68 3 688 P for 5 16 Inch Dia Mounting Bolts 2 Controlled Flow Excess Flow Static Dynamic Static Dynamic Static Dynamic Ports 5 Port Size Signal Signal Signal Signal Signal Signal 35 50 52 75 5 2 75 7 6 110 6 9 100 10 0 145 P amp EF 7 8 14 CF 3 4 16 606 1217 606 1232 606 1218 606 1314 606 1219 606 1315 LS amp T 7 16 20 P amp EF 3 4 16 CF 9 16 18 606 1214 606 1327 606 1215 606 1278 606 1216 606 1328 LS amp T 7 16 20 P amp EF M22X15 CF M18X 1 5 606 1329 606 1330 606 1331 606 1333 606 1334 LS amp T M12X15 P amp EF R1 2 14 CF R 1 2 14 606 1335 606 1336 606 1337 606 1338 606 1339 606 1340 LS amp T R1 4 19 For comprehensive Example 606 1218 003 QA I System Pressure Product Number Code Number The above product number describes a VLC Series with 5 2 bar 75 PSI control pressure static signal 7 8 14 P and EF ports 3 4 16 CF port 7 16 20 LS and T ports 172 bar 2500 PSI relief valve setting EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 information on all steering system components Valves see Eaton catal
18. MAX Dia 1 01 MAX Dia 4 8 y 59 00 2 323 Dia 2 3 17 MAX 5 140 8 4 x M 6 x 1 0 6H 20 03 8 9 12 2 48 Min Depth 35 MIN 26 4 0 5 20 3 0 1 04 02 80 02 19 8 0 78 02 Additional Port Displacement Dim A Max Pressure Port cm r i re r mm irch 13 740 5 31 5 1 92 135 1 5 32 542 02 27 940 5 30 5 2 41 137 2 5 40 03 d 50 8 3 10 13611536 nu ae SCH 63 1 3 85 137 9 5 43 93 02 73 8 4 50 139 7 5 50 100 6 10 144 5 67 120 7 33 147 3 5 80 5X 5625 18 UNF 2B SAE O Ring Port Left Port 11 4 0 5 45 02 Sectional Drawing Pin Sleeve Drive O ring Gerotor End cap Dust seal Bearing Race Quad seal Retaining ring Wear plate housing VIEW oN BNEREN NOVO BE 26 EATON Char Lynn Steering Catalog C STOV MCOOL El J uly 2006 Steering Control Units Series 5 Performance Data Neutral Pressure Drop Inlet to Auxiliary bar 11 L min 3 GPM Rated Round Unit PSI p ol 80 4 40 2 0 0 0 4 7 11 15 1 2 3 4 L min GPM bar 19 L M in 5 GPM Rated Unit PSI 250 14 200 10 150 6 100 50 2 0 8 11 15 19 23 2 3 4 5 6 L min GPM Relief Valve Curve 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500
19. PS F Force required for the axle T Kingpin torque as determined in Step 1 The value calculated in Step 1 is the total torque for the axle If the steered axle is power driven double this value to approximate the additional dynamic loads Effective radius arm about the kingpin axis at which the cylinder force is applied The effective radius is the minimum distance from kingpin to the axis of the cylinder hot the actual length of the arm ll Cylinder Area A E P A Cylinder area for the axle cylinder set F Force required P Hydraulic pressure For vehicle with a steered axle that can never be overloaded use 80 of the steering circuit relief valve setting For moderately loaded vehicles use 60 For vehicles that can be severely overloaded use 30 Cylinder Diameter Once the required cylinder set area is determined the cylinder diameter can be calculated D Inside diameter of cylinder d Rod diameter as required Differential Cylinder Cross Connected Cylinder 2A d2 uw tu Opposed Cylinder Pet Cylinder Stroke S Stroke Length The cylinder stroke is determined by axle geometry That is the required stroke is a function of the radius arm and the total angle through which the arm tums Differential Cylinder _ Large Volume V 5x 7 Differential Cylinder Small Volume or V 5x 02 Balanced Cylinder 4 Cross Connected V Sx E
20. Position 7 8 57 15 Not Available 2 250 ie 1880 with Horn 32 3 1 31 Wide Ke Wire 16 0 63 Note Torque Nut to 41 54 Nm 30 40 lb ft 20 10 790 Dia 3 4 16 UNF 2A Thread 76 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components Columns Upper Shaft End Continued Example see model code page 73 Position 7 8 YM 050 1 Taper M 18 x 1 5 6g Thread Not available with horn wire CL YM Position 7 8 Position 7 8 Not Available 52 1 2 05 Not Available 50 5 1 99 with Horn 23 2 913 Dia with Horn 45 50 1 790 Wire or Tilt 32 0 1 26 TE Wire M18 x 1 5 6g Thread Se 29 36 1 156 L 17 92 705 Dia Woodruff Key 14 27 562 1 SCH ai Note Torque Nut to f N 41 54 N m 30 40 lb ft M18x15 6H M16x 1 5 6g Thread ThreadJamNut 40 Tooth Straight Tooth Serration gris 050 1 17 48 688 M ajor Dia Il Note Torque Nut to 37 3 1 47 Dia Washer 41 54 N m 30 40 lb ft 16 0 63 PT SV Position 7 8 Position 7 8 55 00 2 165 47 0 1 850 30 00 1 181 21 00 827 Dia Me DBO 21 55 848 Dia 15 00 590 14 00 551 Note Torque Nut to 41 54 N m 30 40 lb ft M18x 1 5 6g Thread 36 Tooth Straight Serration 20 55 809 M ajor Dia Note Torque Nut to 41 54 N m 30 40 lb ft M18x 1 5 6g Thread LE 36 Tooth Straight Serration 21 79 858 M ajor
21. 149 9 5 90 PORT AND MOUNTING THREAD COMBINATIONS 145 8 9 15 5 61 152 7 6 01 C D e T Ge Tr m TT mi 34 16 UNF2B M10x 1 5 6H 7 16 20 UNF 2B 230 SEI 244 96 1615 6 36 a an _ 295 17 9 310 1 22 1681 6 62 M18 x 1 5 6H M 10 x 1 5 6H M 12 x 1 5 6H M14 M 22 x 1 5 6H M 10 x 1 5 6H M 12 x 1 5 6H M 14 370 22 6 39 1 1 54 176 3 6 94 wapa er ET 460 28 2 48 8 1 92 185 9 7 32 port face only see page 44 590 35 9 62 2 2 45 199 3 7 85 kSAE Oring Port Port 740 45 1 78 2 3 08 215 3 8 48 FFBSP Straight Thread Port 985 60 0 103 9 4 09 241 0 9 49 40 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 Steering Control Units Series 20 Installation Drawing Load Sense Relief Option Load Sense Relief Valve 52 8 2 08 M ax Left Right Pressure 50 5 49 5 1 99 1 95 Load Sense Port 7 16 20 UNF 2B SAE O ring Port G 1 4 BSP Straight Thread Port M12x 1 5 6H Metric O ring Port Load sense port on port face is only available on units with load sense relief valve EATON Char Lynn Steering Catalog C STOV MCOOIL E1 J uly 2006 41 Steering Control Units Series 20 Sectional Drawing and Integral Valves Load Sensing Port Inlet _ f Y Valve with Check CEE Q A mp Option Valve Pressure Ports 4 Side Load Sensing Port Load Sense Relief Valve Load Sense Porton Port Face Availabl
22. 20 40 20 24 803 797 M ax Effective 2 428 0956 Min Actual 2 362 0930 Circular Form Dia 17 45 687 Pitch Dia 7500 19 05 Fit Flat Root Side Fit Number of Teeth 12 Pitch 16 32 Pressure Angle 30 Class of Fit Special Circular Tooth Thickness Max Effective 2 428 0956 Min Actual 2 362 0930 Splined End AISI 8620 Mt l Case hardened to RC 40 50 84 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 This Splined Lower Shaft End Part as shown below is Available from Eaton Part Number 8063 F 42 2 1 66 25 40 F 1 000 7 2223 22 4 88 875 Dia p 94 37 18 09 18 00 16 38 15 88 712 709 Dia 645 625 Dia 4 12 Tooth Spline to Fit Char Lynn SCU 1 1 0 04 Involute Spline see Spec 309 Two Places 12 Tooth Spline Specification left Can be press fit and welded into a 22 22 875 OD x 2 16 085 wall steel tube Steering System Components EH Proportional Loadsensing Steer Valves Description EH proportional steer valves are commonly used for GPS steering joystick steering and autoguidance This is achieved by a manifold containing a shuttle valve a counterbalance valve and a KDG proportional control valve Model Code Description DSV2 8 Shuttle Valve CBV2 10 Counterbalance Valve KDG4V3S Proportional Control Valve For more information see Vic
23. 202 Cylinder 4 Cylinder Volume V Volume V SxA The volume of oil required to move cylinder rod s through the entire stroke EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 91 Sizing and Application Ackermann Type Steering Continued Step Three Selecting Steering Unit Displacement Before proceeding further a decision must be made as to the number of steering wheel revolutions desired for the application to steer the axle from full one side to the other Depending on vehicle usage this will vary normally 2 1 2 to 5 1 2 with 4 being a good typical value V N V Volume full stroke N number of steering wheel revolutions lock to lock Once this calculation is Displ complete select the closest standard steering unit displacement from the catalog information Now the number of steering wheel revolutions should be recalculated N V displ displ Steering unit displacement per revolution Note for different cylinder applications the cylinder volume will be different for right and left tums and the value N will vary accordingly 92 Step Four Calculating Required Pump Flow Pump sizing is important to assure adequate power for steering under all operating conditions The required pump flow can be calculated by the following equation Qp Rmax x displ Qp L min Required pump flow Rmax M ax steering wheel input of steering control unit SCU displ Dis
24. 50 63 Steering System Components Antijerk Valves Description Antijerk Valves provide smoother steering on articulated vehicles such as Wheel Loaders This is achieved by a pressure sequence valve mounted on a block Patent pending For more information see Vickers Screw in Cartridge Valves Cat V VLOV M COOL E2 Features Dramatically reduces jerk when steering is stopped quickly and while making aggressive changes in direction The valve works by monitoring the margin pressure acting on the steering valve Margin spikes when steering wheel speed is reduced aggressively When this occurs a small amount of damping flow is allowed across the tum ports Unlike accumulators this valve will not have a negative affect on roading performance and it is more cost effective than cushion valves Applications CF1 is supply from the pump or priority valve CF2 should connect to the steering valve UPSTREAM of any check valves LS1 amp LS2 are the steering valve load sense connection R amp L are pass through ports for the tum lines The setting of the valve needs to be higher than the normal difference in pressures between CF and LS i e if CF LS is 150PSI then a good setting to start with is 200PSI Steering Control Unit Electric Pump M LE R Emergency a LS21L2 R2 Steer Anti Anti Pump IER V J erk Supply va Manifold CF1 R1 Cylinde
25. DD 83 1200 LS amp T 7 16 20 HE 120 1725 P amp EF 15 16 12 LA 138 2000 CF 11 16 12 606 1350 606 1282 606 1351 606 1281 606 1352 606 1283 P amp EF M27X2 N 160 2 60 2300 CF M18X 1 5 606 1353 606 1354 606 1355 606 1356 606 1357 606 1358 QA 172 2500 LS amp T M12X15 UA 207 3000 High P amp EF R3 4 14 VD 230 3325 Pressure CF R 1 2 14 606 1359 606 1360 606 1361 606 1362 606 1363 606 1364 For comprehensive information on all steering system components Valves see Eaton catalog E VLFL MLOO1 E 66 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components VLH In Line Priority Valves 240 I min 63 GPM 255 3 10 05 Rated Flow RF 136 0 5 36 H 113 0 4 45 M FR for 1 2 Inch Dia Mounting Bolts 2 43 0 Inlet Pressure 1 69 ye DD 83 1200 HE 120 1725 LA 138 2000 57 2 E 2 25 XU MC 150 2175 38 0 NC 160 2300 1 50 QA 172 2500 2 99 UA 207 3000 High 76 VD 230 3325 Pressure 57 2 VK 240 3475 2 25 B Rated CF Pressure is i 14 Ux 276 bar 4000 psi Load Sensing lus Excess Flow x trolled Fl Rated inlet and EF Pressure Return 30 0 1 18 75 0 2 95 SE is 296 bar 4300 psi 76 0 3 00 Example 606 1202 003 0A Geck Control Pressure bar PSI Product Number TE tas Static Dynamic Static Dynamic Static Dynamic Product Number Ports 5 O
26. Dia 052 1 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 77 Steering System Components Columns Tilt Column 5TILT POSITIONS 1 4 BLADE RECEPTACLE FULLY INSULATED 36TOOTH STRAIGHT SERRATION 7 8 X 36 858 002 MAJ OR 816 002 ROOT 90 1INCL ROOT ANGLE 9488 002 OVER TWO 0625 PINS 2 47 1509 ALSO AVAILABLE WITH 1 63 HEAVY DUTY TUBE i SAE J 928TYPE 156 PINTYPE WIRE ENDWITH DOUBLE END SOCKET CONNECTOR How to Order your Tilt Column B 8125 20 E UNEF 2A 50 01 LENGTH A CUSTOMERTO SPECIFY LENGTH ABOVE PIVOT E ae 3 25 MINIMUM 052 1 859 001 START RUBBER BOOT 1509 PUSH TO RELEASE TILT LOCK RUBBER BOOT LENGTH B 800 FLAT ROOT SIDE FIT 25 03 12TOOTH 16 32 PITCH 227 015 j Model Code Steering Columns 123 45 67 8 9101 2 13 14 15 16 17 18 19 20 21 2 Alc k T J Al Position 9 10 11 Dim A Above Pivot Dim B Below Pivot A A 127 0 5 00 127 0 5 00 A A B 190 5 7 50 101 6 4 00 A A A 190 5 7 50 546 4 21 51 Dim A minimum above pivot is 165 1 6 5 with one horn wire Dim A minimum above pivot is 203 2 8 0 with two horn wires 78 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 CUSTOMERTO SPECIFY LENGTH BELOW PIVOT 5 75 MINIMUM FOR SINGLE HORN
27. Hydraulics Division Sales Representative or send it to Marketing Product Manager Steering Eaton Hydraulics 14615 Lone Oak Rd Eden Prairie MN 55344 Twin Cylinders with a Single Wheel Set CG1 Twin Cylinders with a Dual Wheel Set Lt EATON Char Lynn Steering Catalog C STOV MCO0O01 E1 J uly 2006 93 94 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Sizing and Application Articulated Vehicle e Clip out this form or photocopy when needed Steering Analysis 5 photocopy Manufacturer Vehicle Type Model Number Completed By Date Indicate Unit of Measurement Used 1 Tums Lock to Lock 22 Articulation Angle lock to lock 2 Time Lock to Lock 23 Steering Circuit Line Size Lengths Type Location please 3 Max Steering Wheel RPM note on schematic ref 10 4 Cylinder Rod Diameter 24 Is Steering Through Brakes Statically Required 5 Cylinder Bore Diameter y 25 Are Locking Differentials Used 6 Cylinder Stroke Front Rear Both 7 Pump GPM Hilde 26 Is There A Differential Between the Front and Rear GPM Lo Idle Differentials Yes No 8 Steering Relief Pressure 27 CG1 Center of Gravity 9 Auxiliary Relief Pressure 28 CG2 Center of Gravity 10 Hydraulic Schematic attach 29 OS1 Operator Seat 11 B1 30 OS2 Operator Seat 12 B2 31 Weight Front Bogey 13 Cl 32 Weight Rear Bogey 14 C2 33 11 Mass Moment of Inertia about CG1
28. Ib in 100 PSI back pressure ttt Fluid ATF Type A and most petroleum based fluids Recommended Filtration 150 18 13 cleanliness level ttt Manual steering is not possible without hydradic power 44 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 25 Model Code Ordering Information The following 29 digit coding system has been developed to identify all of the configuration options for the Series 25 steering control units Use thi s model code to specify a unit with the desired features All 29 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box 1 2 3 4 5 6 7 8 9 100 12 13 Y 15 16 17 de 19 20 21 22 23 24 25 26 27 28 29 A BW 6 A 0 0 3 A A Al 0ID Nos Feature Code Description Feature Code Description 1 223 Product Series ABW Series 25 Steering Control Unit 18 19 20 21 Ports and EAAA 4x 1 1 6 Ports 4 Nominal Flow 7 95l min 25 GPM eeh MUR Stee UNC Column Rating 8 151 l min 40 GPM Q amp only re ounung E 189 l min 50 GPM Q amp only EAGA 4x 1 1 6 Ports with 7 16 Load 5 Inlet Pressure 6 241 bar 3500 PSI Sensing Port and 7 16 SAE Pilot Rating Pressure Port Capped with 3 8 16 UNC Column Mounting 6 Retum A 10 bar 150 PSI Use with Load Sensing Units Pressure Rating Onl
29. MCOOI E1 J uly 2006 3 Description and Advantages Steering Control Units The Char Lynn steering control unit SCU is fully fluid linked This means there is no mechanical connection between the steering unit the pump and the steering cylinders The unit consists of a manually operated directional control servo valve and feedback meter element in a single body It is used principally for fluid linked power steering systems but it can be used for some servo type applications or any application where visual positioning is required The close coupled rotary action valve performs all necessary fluid directing functions with a small number of moving parts The manually actuated valve is coupled with the mechanical drive to the meter gear The control is lubricated and protected by the power fluid in the system and can operate in many environments CharLynn power steering control units offer the following advantages Minimizes steering linkage reduces cost provides flexibility in design Provides complete isolation of load forces from the control station provides operator comfort Provides continuous unlimited control action with very low input torque Provides a wide selection of control circuits and meter sizes Can work with many kinds of power steering pumps or fluid supply SERIES 5 291 XXXX XXX 292 XXXX XXX 293 XXXX XXX 294 XXXX XXX Displacement 31 5 146 cm3 r 1 92 8 9 in3 r Flow 11 19 l min 3
30. NE 67 9 Dag Max Port can be mounted toward input or output end 2 54 1 26 40 1 100 050 1 58 Max EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 61 Torque Generator 227 Series Port Block Installation Drawing 9 16 18 UNF SAE O ring Port 21 8 20 9 86 80 Input Shaft SE Output Shaft Port Block Kit E No 208 1021 001 A 3 6 15 2 61 3 59 7 pei 9 16 18 UNF 2B 12 41 2 35 SAE O ring Ports 2 F 750 744 26 7 24 7 ple use ee D 417 410 24 2 23 6 L 64 60 35 39 37 3 1 47 12 8 51 nm E 25 5 1 01 T4 49 2 1 94 55 0 2 17 221 Only Manifold Mount 4 5 18 5 16 18 UNC Mounting Holes 2 17 21 Nm 11 2 44 150 190 Ib in Screw Torque ci 16 0 63 Displacement Dim mm inch cm3 r in3 r E 80 3 4 90 62 0 2 44 227 Series 101 6 6 20 71 2 2 80 Geroler Unit 160 0 9 64 76 2 3 00 62 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Torque Generator Performance Data Torque Generator Pressure Drop bar Flow l min 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 0 5 1 5 2 5 3 5 4 5 Flow GPM 5 5 6 5 7 5 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 200 150 100 PSI
31. System Components Four Wheel Steer Switching Valves Description Four Wheel Steer Switching Valves provide three different types of steering by energizing and de energizing two DG4V 3 valves DG4V 3 valves are high performance solenoid operated directional control valves Two Wheel Steering Energize Solenoid S1 Four Wheel Steering Energize Solenoid S2 53 Crab Steering Energize Solenoid S2 S4 For more information on these two valves see Vickers Solenoid Operated Directional Valves Cat GB C 2015 86 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Applications Telehandlers Sprayers Rough terrain Cranes Backhoe Loaders Ordering Information 1 Reference Assembly Number 02 411452 Coil Rating 12V DC Ports A B PT 3 4 16 UNF 2 Choose Coil Rating 12V DC 24V DC 3 Specify Ports if different than above PN DG4V 3 Solenoid Operated Directional Valves SPECIFICATIONS Rated Flow 80 l min 21 GPM Max System Pressure 210 bar 3000 PSI Internal Leakage when A or B pressurized in two wheel drive 40 ml min 200bar 50 C 2 44 in min Pressure drop 45 l min 12 GPM Two Wheel Steering 5 bar 72 5 PSI Four W heel Steering 20 bar 290 PSI Crab Steering 20 bar 290 PSI Electrical Connection Type AMP Steering System Components Flow Divider Valves Model 32306 P
32. WIRE AND 3 625 MINIMUM FOR NON HORN WIRE Steering System Components Columns Horn Wire Electrical Example see model code page 73 Position 12 16 1A045 Column with one horn wire Single Wire OL i i 1A045 Position 18 19 2441121 tr Single Wire Position 12 16 9 52 375 Dia A TPI m D qus A EU LA Column with 1Wire 08 KorT Position 18 19 Position 17 K Blade Receptacle KE 35 8 1 41 Insulated L Compatable with 114 3 l 64 25 Blade 4 50 Ru Per SAE J 858a n Tinned Bare Wire End E Erd 3 ci T SAE 928 Type 3 96 156 Female Wire End Two Wire n 02 28045 Position 18 19 28 4 1 12 One Horn Button Position 12 16 with Wire Eyelet cm 9 52 375 Dia Select with Two Horn Wires E LS m v SS e 4 8 19 Dia e am Stud Eyelet Column with 2 Wires Type Wire End 40 6 1 60 08 Position 18 19 Ge JE nec Tinned Bare Wire Ends KorT Position 17 K Blade A 1120 4 41 Receptacle 35 8 1 41 Insulated Compatable with 6 4 25 Blade 44 114 3 E Per SAE J 858a 4 50 _ 1 I I pea T SAE 928 Type 3 96 156 Dia Female Wire End EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 79 Steering System Components Columns and Wheel Mounting Product Information Inspect for Minimum Clearance at Assembly 1 6 mm 06 in Min Steering Wheel Hub
33. above the maximum steering cylinder pressure requirement Most of the flow will be directed to the auxiliary circuit EF when the relief setting is exceeded System Main Relief Valve A pressure relief valve for the auxiliary circuit and or a main safety valve for the protection of the pump is recommended and sized for the maximum pump output flow rate If a main relief valve is used it must be set above the priority circuit steering relief valve pressure setting Steering Cylinder M anual Input OL OR Load Sensing 5T OP Steering m High Pressure LS CF Carryover Steering Relief ei DS Lo TNT PP kein CT Filter SA P Priority Valve lan ain El Relief Dynamic Signal Filter E Pump Prime M over Tank v LS Load Sensing DS Dynamic Signal PP Pilot Pressure CF Control Flow EF Excess Flow 8 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Hydraulic Circuit Explanation Neutral Circuits Load Sensing Load Sensing Circuits Signal Systems Two types of load sensing signal systems are available Dynamic and Static Dynamic Signal Used for more difficult applications The dynamic signal system
34. box 12 3 4 5 6 7 8 9 10 tl 2 13 14 1 16 17 18 19 20 21 22 A CIK 010 Nos Feature Code Description Nos Feature Code Description 12 3 Product Series ACK Steering Column 100 254 0 10 00 45 Jacket Base Type SJ Standard 38 mm 1 50 inch 0 D ia Ar r page MN Round Series 5 38mm 1 5 inch O D 160 1064 16 00 74 HG Heavy Wall 41 4 1 63 inch 0 D 026 661 2 60 Tabbed Flange 036 923 3 63 SH Standard With flat Flange 062 1573 6 19 38mm 1 50 inch O D No Tabs 081 206 6 813 TJ Tilt Column with Flat Flange M echanical Push TR Button 103 260 2 10 24 11 282 8 11 13 6 LowerShaftEnd 1 12 Tooth Spline for Steering Unit 121 308 2 12 13 see page 3 3 4 inch D Section 162 409 3 16 11 75 for Noise Isolator 182 4611 18 15 257 651 6 25 65 18 Upper Shaft End AJ Standard for all rigid and tilt columns 276 701 9 27 63 see illustrations Available with or without Horn W ire 302 765 9 30 15 and specifications MJ Available with or without Horn W ire 329 835 7 32 90 ees page DN Not Available with Horn Wire AAA 190 5 7 50 Above Pivot 76 77 EJ Not Available with Horn Wire 546 21 51 Below Pivot GC Not Available with Horn Wire AAB 190 5 7 50 Above Pivot Tilt Column CL Not Available with Horn Wire 101 6 4 00 Below Pivot PT Available with or without Horn W ire AAC 127 0 5 00 Above Pivot SV Available with or without Hor
35. cm3 r in3 r 43 75 45 13 5 S 45 95 5 9 Use with 38 21 48 120 73 l min 10 GPM 24 50 145 8 9 51 160 9 7 40 e 7 7 m Not all valve options will work with all unit combinations m gt 57 295 17 9 L Use with 76 76 l min 20 SE iion 59 370 22 6 l min 20 GPM 14 15 Load Sensing Relief 00 None 61 460 28 2 Valve Setting AN 150 bar 2180 PSI 64 590 35 9 50 160 bar 2320 PSI 66 740 45 1 Use with 114 5A 170 bar 2470 PSI 45 1 69 985 60 0 _ Vmin 30 GPM 5L _ 180 bar 2610 PSI 9 Flow Amplification O No Q Amp e Co d Bee ES 1 lt 16 10 Ratio 6 210 bar 3050 PSI Actual Displ 185 to 985 cm3 r 6V _ 220 bar 3190 PSI 113 to einen 76 230 bar 3340 PSI 3 2 0 10 Ratio Actual Displ 60 to 370 cm3 r lo PAO DAN ABO ESN 3 6 to 22 6 in3 r 10 Neutral Circuit F Load Sensing Dynamic Signal T Load Circuit Non Load Reaction 38 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Ur Damped Non Load Reaction Cylinder Anti Cavitation Valve Continued on next page Steering Control Units Series 20 Model Code Ordering Information Continued Nos Feature Code 16 17 Cylinder 00 Relief 6 Valve 6V Setting 76 CYJI i 7G Cylinder Relief TT Setting recommen 84 dation is 870 PSI SE 60 bar above steering SR inlet load sense 92 pressure 9C 18 19 20 21 Ports and AABN Mounting Threads DACN FAFN FBFN RACN SAFN SBFN 18 19 20 21 Ports and DADN M
36. e J erkreducing valves and accumulators can be eliminated on most vehicles providing customer savings through fewer components required and reduced system cost Symmetrical valving provides passageways and valving that are equally placed and pressure areas that are staged for minimum internal leakage This results in balance precise servo response and uniform left or right steering action Eaton s high capacity gerotor provides ample fluid displacement from an even more compact unit than was previously offered A thicker sleeve design provides stability especially during pressure and thermal transient conditions The seal and centering spring designs provide positive low effort steering feel to ensure excellent vehicle control an important feature for the vehicles for which these steering control units were designed Features Load Sensing Integral Valves e Q Amp Wide Angle Versa Steer Cylinder Damping Applications Articulated Vehicles Loaders Scrapers Skidders AG Tractors e Dumpers Sprayers Forestry Equipment Rigid Frame Vehicles Front End Loaders Large Graders Mining Trucks Transporters AG Tractors SPECIFICATIONS M ax System Pressure 241 bar 3500 PSI Max Back Pressure 10 bar 145 PSI Rated Flow 95 l min 25 GPM M ax Flow 125 l min 33 GPM M ax Differential Between Steering Unit 28 C and Syst
37. ea 19 A lot ho a er a a A E 20 STC DifectPOMING 3 c60c ce va eee teen eee RRE Gene A ds ee eed beading A SEN ENEE K RR ed ieee 21 Steering Control Units and Torque Generators Senes EERSTEN 22 Series TO aii AAA E das ees neem Cees een een a i E AA ATAN 29 Series a2 oe tiente pe Gove ee edd a a o AA EE ER 37 SOMOS Et 44 SS STS 4101 EET 49 TORQUE Genc Ce 22 i etn et EE 53 Steering System Components and System Accessories Antijerk EE 64 Priority Valves VC EEN 65 V ee 69 Ile 71 Columns ord acie ncn lege irte cedet iet deteriores d OR depen o a P qd eet e EID pea podra 72 Steering Wheels and E TEE 82 EH Proportional Steer Valves 12 2 2 ANNE 5 l a b PR NEE H ee HVA ERR ANE SNE A RRR Ra d 85 Four Wheel Steer Switching Valves i a a idea da ee du ERG eee 86 Flow DividerValves ssmlklxekRickem e BEIDE e kp RR REENEN da E ewes SNE Den a 87 Brake Valves 2 52d a a ate ba Race Ria ace eG dd ccs pn EELER E R RE EE a 88 T Seres Hydraulic Motors 1 4 13224 RE EE phere as eens E dE Rr rr E ANNE Ed 89 Sizing and Application Ackermann Type Steenin iii zc a deine ay Oe Me daa e nie aed ole R dd 89 Articulated Type Steering us ng d REEL EE ceded ained geese peewee d NEE eee eee a nea eee PR HA 92 Articulated Vehicle Steering Analysis Form 00000 cee eet hh nr 93 Articulated Vehicle Steering Analysis Form 1 1 2 2 442 938 KAL S DVD KA R DM RA Rb kara teen hh 95 EATON Char Lynn Steering Catalog C STOV
38. model code page 30 Position 17 18 Anti Cavitation Valve Input Torque Pressure Drop versus Flow Flow l min 8 10 32 150 28 24 100 H Z rm 50 8 4 0 0 Flow GPM o Eb 0 20 30 40 50 60 70 80 90 100 Percent Deflection Standard Torque EATON Steering Catalog C STOV MCOOI E1 May 2006 35 Steering Control Units Series 10 Dual Displacement Installation PORT AND MOUNTING THREAD COMBINATIONS I Port ColunnMounting Load Sersing Port Mourting Drawi ng Thread Port Thread 3 4 16 M 10 x 1 5 6H 7 16 20 M 12 x 1 75 6H M 18 x 1 5 6H M 10 x 1 5 6H M 12 x 1 5 6H M 12 x 1 75 6H STC M 10 x 1 5 6H STC M 12 x 1 75 6H G 1 2 BSP M 10 x 1 5 6H G 1 4 BSP M 12 x 1 75 6H Column M ounting Load Sensing Units Only See Page 32 lower right Thread x 15 2 60 Deep on 82 5 3 25 PADOM aK Dia Bolt Circle 56 1 E A e 2 21 47 8 L B 1 88 21 1 37 08 36 32 1 460 1 430 38 61 38 41 83 63 12 62 62 2 485 2 465 1 52 1 480 GE 56 13 55 37 2 210 2 180 Max Load Sensing Power E C D 44 96 43 94 Beyond Side Port i 1 770 1 730 E pii 83 8 3 30 Dia M ax SC 12 Tooth Load Sensing 2 48 21 98 elo Left Right Tank Pressure PortFace 885 865 P 30 P A Port Mounting Thread x 24 1 95 M in Deep 2 14 2 56 Deep 74 54 29 21 Spline T d ES WW 10 2 40 M
39. ring Signal Signal Signal Signal Signal Signal X Design Level NOT part of Order Number Port Size 52 75 5 9 85 6 9 100 7 6 110 10 3 150 11 4 165 The product number above left describes a VLH Series P amp EF 158 0 with 6 9 bar 100 PSI control pressure static signal E Nen 606 1201 606 1288 606 1202 606 1289 606 1203 606 1290 1 5 8 12 P and EF ports 1 5 16 12 CF port 7 16 20 LS P amp EF 158 12 SR CF 1116 12 606 1368 606 1284 606 1369 606 1285 606 1370 606 1286 LS amp R 7 16 20 P amp EF 158 12 CF 3 4 16 606 1189 606 1371 606 1190 606 1372 606 1191 606 1373 LS amp R 7 16 20 For comprehensive information on all steering system components Valves see Eaton catalog 11 508 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 67 Steering System Components VLC VLE and VLH Priority Valves Pressure Drop Curves VLC Series VLE Series VLH Series U S Patents Re 26 338 3 455 210 and 4 043 419 cover circuits using these priority valves Corresponding foreign patents pending and issued Symbols For comprehensive information on all steering system components Valves see Eaton catalog E VLFLMLOO1 E bar PSI 8 120 7 100 6 5 JI 80 Maximum pressure 4 LAE 60 drop depends on 3 st 40 control pressure 2 setting and pressure 1 20 out EF port 18 5 37 56 75
40. valve Diagnostics Cylinder Damping Applications Articulated Vehicles Loaders Scrapers Skidders AG Tractors Rigid Frame Vehicles Large Front End Loaders Graders Mining Trucks Articulated Dump Haulers Transporters Benefits Balanced architecture provides passageways that are equal in both directions and pressure areas that are staged for minimum leakage This gives balance precise servo response and uniform steering action in both directions while reducing drift Progressive valving makes it possible to produce the spool sleeve valve in a way that assures reliability and reduces costs Eaton s high capacity gerotor assembly provides a lot of capacity in a small package Heavier valve components housing spool and sleeve provides stability especially during pressure and thermal transient conditions The seal and centering spring designs provides positive low effort steering feel assuring excellent vehicle control an important feature on large vehicles SPECIFICATIONS Max System Pressure 241 bar 3500 PSI Max Back Pressure 21 bar 300 PSI Rated Flow 95 l min 25 GPM Max Flow 189 l min 50 GPM Max Differential Between Steering Unit 28 C and System Temperature 50 F Max System Operating Temperature 93 C 200 F Input Torque Powered 2 8 3 4 Nm 6 9 bar back pressure Non Powered 25 30
41. 16 5 75 90 9 16 ORS 4 60 Pressure raig A bar 3 45 PSI 2 30 1 15 Cracking Pressure 0 15 30 45 4 8 Flow l min GPM 12 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 69 Steering System Components Check Valves Installation Drawing D g Straight E D m E ed ke ORS 9 C Hex A B Hex A B 90 Elbow FD 7 N B A C Hex Product Check Valve Dimensions mm in Configuration Number A B C D E 37 608 1003 3 4 16 3 4 16 22 61 22 10 89 87 43 69 43 18 1 72 1 70 14 48 13 46 57 53 37 608 1004 9 16 18 3 4 16 22 61 22 10 89 87 41 15 40 64 1 62 1 60 14 48 13 46 57 53 Straight ORS 608 1007 13 16 16 3 4 16 22 61 21 10 89 87 39 88 39 37 1 57 1 55 14 48 13 46 57 53 ORS 608 1009 11 16 16 3 4 16 22 61 22 10 89 87 38 16 37 59 1 50 1 48 14 48 13 46 57 53 90 ORS 608 1013 11 16 18 3 4 16 24 13 23 62 95 93 37 6 35 5 1 48 1 40 41 15 40 13 1 62 1 58 70 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components Relief Valves Model 32107 In Line Relief Valve Direct Acting Cartridge Specifications H M ax Flow Through ES Relief Valve 57 l min 15 GP M H Relief Valve L P Setting Range 47 276 bar 675 4000 PSI Standard Relief Valve Setting 138 bar 2000 PSI Housing Rated
42. 217 Series Gerotor Unit s 92 07 3 624 43 1 74 3 2 92 5 16 18 UNC x 1 70 14 55 Min Deep 4 75 wide x 19 1 Dia 78 5 7 on 63 5 2 50 48 74 187 wide x 75 Dia 3 09 Dia Bolt Circle 1 919 Woodruff Max Both Ends Input Shaft 22 17 873 Dia Both Ends 5 08 200 30 7 1 21 Keyway 2 N Output Shaft 13 50 Both Ends 2x31 2 1 23 Max 7 9 31 Dia Hole 86 1 3 39 Max Both Ends for Pin Couplers 49 0 1 93 Max Displacement Dimension mm inch cm3 r in3 r A C 217 Series 96 1 5 86 231 9 9 13 114 5 4 51 60 4 2 38 Gerotor Unit 159 6 9 73 240 6 9 47 123 2 4 85 69 3 2 73 80 3 4 90 233 3 9 18 115 9 4 56 62 0 2 44 227 Series 101 6 6 20 237 2 9 34 119 8 4 72 65 9 2 59 Geroler Unit 160 0 9 64 241 5 9 74 130 1 5 12 76 2 3 00 92 07 3 624 43 1 74 3 2 92 5 16 18 UNC x 1 70 14 55 Min Deep 48 74 4 75 wide x 19 1 Dia 78 5 7 on 63 5 2 50 1 919 187 wide x 75 Dia 3 09 Dia Bolt Circle Both Woodruff Max Ends Keyway 2 Input Shaft 22 17 873 Dia Both Ends 30 7 1 21 5 08 200 IM 7 9 31 Dia Hole Both Ends for Pin Couplers y 13 50 Both Ends 2x 31 2 1 23 Max 49 0 1 93 Max EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 8
43. 25 26 27 28 29 A BY 6 B 0 0 0 0 0 0 3A 0 AAN 0 0 C Nos Feature Code Description Nos Feature Code Description 1 2 3 Product Series ABY Series 40 Steering Control Unit 18 19 20 21 Ports and GAAA 4 x 1 5 16 SAE Ports with 4 Nominal Flow 8 151 l min 40 GPM ee A Rating 9 227 l min 60 GPM Q amp only reads reaS GAGA 4x1 5 16 SAE ports with Ru m 5 241 bar 3500 PSI 7 16 SAE Load Sensing Port and 7 16 SAE Pilot Pressure Port with 6 Retum Pressure B 21 bar 300 PSI 3 8 16 UNC Column Mounting Rating Threads Use with Load Sensing 7 3 Displacement 71 1230 75 Only cm3 r in3 r 74 1560 95 22 Input Torque 3 Standard 29 1970 120 23 Fluid Tj A See Eaton Technical Bulletin 3 401 78 2460 150 ype 80 3030 185 24 Special 0 None 9 Flow Amplification 0 None Applications l 16 10 Ratio 25 26 Special Features AA None 10 Neutral Circuit A Open Center 27 Paint 0 No Paint C Closed Center EM D Closed Center with Neutral Bleed 28 Identification 0 Eaton Product Number on pt Nameplate F Load Sensing Dynamic Signal teg 11 Load Circuit A Non Load Reaction gn SC H AssignedDesign code E Non Load Reaction Cylinder Damping Use with Q amp only 12 13 Integral Valve 00 None 14 15 Integral Inlet Relief 00 None Valve Pressure Setting 16 117 Cylinder Relief 00 None Valve Setting 50 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 40 Installation Drawing 12 Tooth Involute Spline
44. 3 3 6 04 Tie 231 14 1 31 7 1 25 159 7 6 29 293 17 9 40 4 1 59 168 3 6 63 370 22 6 50 8 2 00 178 7 7 04 462 28 2 63 5 2 50 191 4 7 54 588 35 9 80 8 3 18 208 8 8 22 739 45 1 101 6 4 00 229 6 9 04 EATON Steering Catalog C STOV MC001 E1 May 2006 33 Steering Control Units Series 10 Sectional Drawing and Integral Valves AA cc BB FF K Check Valve Inlet Load Relief or Sense D E l Gas Valve Relief Valve cc Internal Check j Valve for Limited Manual Steering DD Cylinder Port Za Shock Valves rae Cavitation Valves for Cylinder Ports 34 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 10 Performance Data Cylinder Relief Valve Inlet Relief Valve Pressure Drop versus Flow Pressure Drop versus Flow Flow l min Flow l min 4 6 8 10 12 14 16 18 0 10 20 30 40 220 DUN 3000 190 4000 2500 psi 160 PSI 2000 3000 130 100 1500 2000 KE 70 T T T T T T T T T T 1000 Flow GPM 0 5 10 Legend PI wb p3 P4 SEN 23 27 30 34 Legend P1 P2 The examples above are 4 of 27 pressure settings shown in The examples above are 2 of 24 pressure settings model code page 30 Position 19 20 shown in
45. 3 6 9 5 60 156 3 6 10 9 60 179 3 6 125 60 205 3 6 133 60 218 3 6 14 9 60 244 For any other displacement please see your Eaton Representative Manual 60 c m3 r 3 6 in3 r Powered 244 cm3 r 14 9 in3 r i 30 Steering Flow l nin 0 0 15 30 45 60 75 90 60 105 120 Input Speed RP Flow vs RPM for each operating mode EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 15 Eaton Patented Technologies Q Amp Flow Amplification for Load Sensing Circuits Description Q Amp steering units have built in variable orifices that provide flow directly to the cylinder without going through the gerotor section The orifices do not open until after the gerotor begins to rotate and then gradually open until the desired flow is achieved which is Features Variable Ratio 2 1 proportional to the flow going through the gerotor A typical Q Amp unit has a ratio of 16 1 which means the flow of the cylinder is 16 times the flow going through the gerotor when turning the steering wheel at medium to fast speeds See model code for available ratios 1 6 1 Ratio LE 10 20 30 40 50 60 70 80 90 100 RPM Turns 4 Lock 3 to 2 Lock 1 10 20 30 40 50 60 70 80 90 100 RPM Manual Steering Steering a vehi
46. 5 179 __ 59 370 22 6 10 gt S 61 460 28 2 11 e e e 64 590 35 9 816 GPM 66 740 45 1 j 12 GPM open center requires 145psi back pressure All Q amp applications need approval from an Eaton Applications Engineer Continued on next page 30 EATON Char Lynn Steering Catalog C STOV MC001 E1 July 2006 Steering Control Units Series 10 Model Code Ordering Information Continued Feature Inlet or Load Sense Relief Valve bar PSI Nos 1718 19 20 Cylinder Relief Valve bar PSI Cylinder Relief setting recommen dation is 870 PSI 60 bar above steering inlet load sense pressure Description Nos None 124 1800 131 1900 138 2000 145 2100 152 2200 158 2290 165 2390 172 2490 179 2600 186 2700 193 2800 200 2900 207 3000 214 3100 220 3190 227 3290 234 3390 241 3500 248 3600 255 3700 262 3800 269 3900 276 4000 136 1970 None 158 2290 165 2390 172 2490 179 2600 186 2700 193 2800 200 2900 207 3000 214 3100 220 3190 227 3290 234 3390 241 3500 248 3600 255 3700 262 3800 269 3900 276 4000 283 4100 289 4190 296 4290 303 4390 310 4500 317 4600 324 4700 331 4800 338 4900 21 22 23 24 Ports and Feature Code Mounting Threads AABA AACA BAAA BADA BAEA CAAA EATON Steering Catalog C STOV MCOOI E1 May 2006 Description 4 x 3 4 16 SA
47. 5 44 43 1 750 1 746 Dia 37 4 147 Pressure 63 5 2 5 1 1 16 UN O ring Port 4 71 4 2 81 Max 4 89 7 3 53 L 63 1385 44 146 25 5 45 Max 89 7 3 53 Max 34 36 3 8 16 UNC x 15 2 60 Deep 59 2 Load Sensing on 82 5 3 25 2 33 Dia Bolt Circle Max 7 16 20 UN F 8 9 35 Max O ring Port 2 12 Tooth Involute Spline ici rd 3 39 Plug in PP Port 16 32 D P 30 P A 9 3 37 Min Depth 15 2 60 M in Deep 7 1 28 M ax Mating Spline Depth 95 5 3 76 Load Sensing Unit Only D Displacement D Max cm3 r in3 r mm in 490 30 205 5 8 08 625 38 211 4 8 32 795 48 219 0 8 62 985 60 228 4 8 99 1230 75 239 8 9 44 46 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 25 27 Steering Control Units Series 25 Installation Drawing with Cylinder Relief Anti Cavitation 3 63 1 42 143 096 88 35 Min Fight 108 8 4 28 Dia 63 5 2 5 140 0 5 51 M ax Max 31 8 1 25 44 45 44 43 1 750 1 746 Dia 25 27 Pressure 96 3 3 79 FM 11 16 N O ring Port 4 m 3 3 ring Po 89 7 3 53 5 2 4 63 1659 44 46 25 6 53 M ax 89 7 3 53 Max 34 36 3 8 16 UNC x D 152 60 Deep 59 2 Load Sensing on 82 5 3 25 2 33 Dia Bolt Circle
48. 5GPM Pressure 140 bar 2030 PSI SERIES 10 200 XXXX XXX 220 XXXX XXX Displacement 58 7 739 cm3 r 3 58 45 1 in3 r Flow 11 76 l min 3 20GPM Pressure 275 bar 4000 PSI SERIES 20 2362000CXXX Displacement 60 985 cm3 r 3 6 60 in3 r Flow 38 114 l min 10 30 GPM Pressure 241 bar 3500 PSI SERIES 25 251 XXXX XXX 252 XXXX XXX 253 XXXX XXX Displacement 490 1230 cm3 r 30 75 in3 r Flow 95 151 l min 25 40 GPM Pressure 241 bar 3500 PSI SERIES 40 281 XXXX XXX 282 XXXX XXX 283 X XX X XXX Displacement 1230 3030 cm3 r 75 185 in3 r Flow 151 227 l min 40 60 GPM Pressure 241 bar 3500 PSI For all other product numbers consult steering website 4 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Description and Advantages Torque Generator SERIES 217 227 Char Lynn torque generators have been completely Displacement 76 160 cm3 r 4 7 9 6 in3 r redesigned to meet the needs of the changing Flow 15 l min 4GPM marketplace These torque generators have served Pressure 69 and 172 bar EE the industry well providing Power assist for vehicle steering Power assist on gates and valves eliminating the large hand wheels Powerful rotary motion with effortless manual rotary input on numerous other applications Today s market includes power steering on electric lift trucks These new torque generators have been designed with features that grea
49. 6 1 3 39 Max 59 Torque Generator Ports Input End 5 16 18 UNC x 14 7 58 Displacement Dimension mm inch Min Deep 3 on cm3 r in3 r c D 63 5 2 50 Dia Bolt Circle 217 Series 96 1 5 86 60 4 2 38 63 5 2 50 Geroler Unit 159 6 9 73 69 3 2 73 72 1 2 84 227 Series 80 3 4 90 62 0 2 44 Gerotor Unit 101 6 6 20 65 9 2 59 160 0 9 64 76 2 3 00 Port Options 9 16 18 UNF O ring Port 2 or G 3 8 BSP Port 2 17 9 70 13 2 52 23 5 93 16 63 36 7 1 45 7 3 29 217 Only Manifold Mount 13 0 51 C 5 16 18 UNC Mounting Holes 2 17 21 Nm 150 190 Ib in Screw Torque 20 3 80 Power Beyond EF or Case Drain 9 16 18 UNF O ring Port 3 or G 3 8 BSP Port 3 For proper operation it is recommended that the unit be installed so no radial load or thrust load is applied to either the input or output shafts Misalignment of shafts will cause binding 60 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Torque Generator 217 Series Port Block Installation Drawing Port Block with 3 8 18 Dryseal NPTF Ports 18 3 16 7 72 66 51 1 2 01 Max Input Shaft Output Shaft Y A Port Block Ku 2 No 208 1022 001 3 8 18 Dryseal NPTF 2 75 9 2 99 Dryseal American Std a Max Pipe Thread Port 2 h _ 61 2 59 6 __ 29 09 28 07 2 41 2 35 1 145 1 105
50. 60 80 100 25 360 320 20 280 i 240 200 bar PSI 10 160 eg 120 5 80 40 0 0 20 25 Tank Pressure y i x GPM i 26 4 48 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 Steering Control Units Series 40 Product Description Features The Series 40 steering control unit includes two patented designs that make it even more responsive reliable and cost effective Benefits e Symmetrical valving provides passageways and valving that are equal in both directions and pressure areas that are staged for minimum leakage This gives balance precise servo response and uniform steering action in both directions Progressive valving makes it possible to produce the spool sleeve valve in a way that assures reliability and reduces costs Eaton s high capacity gerotor assembly provides a lot of capacity in a small package Heavier valve components housing spool and sleeve provide stability especially during pressure and thermal transient conditions The seal and centering spring designs provide positive low effort steering feel assuring excellent vehicle control an important feature on large vehicles for which this steering control was designed Open Center Closed Center Load Sensing Q amp Pilot Pressure Port This is an added feature that can be used for 1 pilot pressure to priority valve 2 diagnostics Cylinder Damping
51. Beyond Input Torque Output Torque Gerotor Geroler T T l E l NAM Direct Mechanical Link In Torque Generator EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 53 Torque Generator Product Description Continued Open Center with Case Drain This high pressure open center torque generator allows the exit flow from the Torque Generator to operate another function for example reach tilt function of a fork lift vehicle An extemal case drain is needed to protect seals and to allow for adequate recentering of spool and sleeve The flow out the case drain is internal leakage only This is a series circuit with some special characteristics that should be noted A relief valve is required in the down stream circuit as well as a relief valve protecting the torque generator The pressures in this circuit are additive If it takes 41 bar 600 PSI for steering and 55 bar 800 PSI for the reach circuit the pump will see 96 bar 1400 PSI The relief valve for steering must always be set higher than the relief valve on the downstream function reach The margin between the two must be enough to provide adequate steering in the worst case fork lift stationary and unloaded 54 Anti Friction Needle Bearings Torque generators are available with anti friction needle bearings at the power end to allow for direct mount spr
52. E Ports None No Additional Port 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4 x 3 4 16 SAE Ports 7 16 20 Load Sensing Port on Side 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4 x 3 4 16 SAE Ports 7 16 20 Load Sensing Port Port Face 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4x M18 x 1 5 6H Metric O ring Ports None No Additional Port 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4x M18 x 1 5 6H Metric O ring Ports M 12 x 1 5 6H Load Sensing Port on Side 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4x M18 x 1 5 6H Metric O ring Ports M 12 x 1 5 6H Load Sensing Port Port Face 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4 x G 1 2 BSP Straight Thread Ports None No Additional Port 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face Continued on next page 31 Steering Control Units Series 10 Model Code Ordering Information Continued Nos Feature Code 21 22 23 24 Ports and CAFA Mounting Threads continued CAGA DAAA DAHA DAJ A 25 Mechanical A Interface 26 Input Torque 3 27 Fluid Type A 28 29 Special Features AA 30 Paints and Packaging 1 31 Identification 0 32 Eaton Assigned B Design Code Description 4 x G 1 2 BSP Straight Thread Port
53. Front 15 El 34 12 Mass Moment of Inertia about CG2 16 E2 ee Rear St III 35 Tire Size Pressure 18 Weight Front Axle Width Ballast Unloaded 19 Weight Rear Axle Note Unloaded 1 10 Should always be completed this information is needed for P aa a basic steering system sizing 20 Weight Front Axle 1 26 Needed for sizing and an analysis of steering pressure Loaded characteristics iaht 1 35 Needed for a full steering system analysis including Si We Rear Ane dynamic characteristics EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 95 96 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Sizing and Application Articulated Vehicle Clip out this form or photocopy when needed Steering Analysis g id Manufacturer Vehicle Type Model Number Completed By Date Indicate Unit of Measurement Used 1 Tums Lock to Lock 22 Articulation Angle lock to lock 2 Time Lock to Lock 23 Steering Circuit Line Size Lengths Type Location please 3 Max Steering Wheel RPM note on schematic ref 10 4 Cylinder Rod Diameter SE 1S steering Through Brakes Statically Required 5 Cylinder Bore Diameter y 25 Are Locking Differentials Used 6 Cylinder Stroke Front Rear Both 7 Pump GPM Hilde 26 IsThere A Differential Between the Front and Rear GPM Lo Idle Differentials Yes No 8 Steering Relief Pressure 27 CG1 Center of Gravity 9 Auxiliary Relief Pressure 28 CG2 Center of Gravity 10 Hy
54. I min 5 10 15 20 GPM Minimum Pressure Drop P EF Oil Viscosity 25 cSt 120 SUS bar PSI 9 140 8 120 7 1001 wu 6 Maximum pressure 5 80 drop depends on 4 60 control pressure 3 setting and pressure 2 40 out EF port 1 20 37 75 112 5 150 187 l min 10 20 30 40 50 GPM Minimum Pressure Drop P EF Oil Viscosity 25 cSt 120 SUS bar PSI 7 100 6 5 4 801 Maximum pressure 4 SC 60 drop depends on 3 40 control pressure 2 20 setting and pressure 1 out EF port 75 150 230 300 l min 20 40 60 80 GPM Minimum Pressure Drop P EF Oil Viscosity 25 cSt 120 SUS e Static Signal 68 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 e Dynamic Signal Steering System Components Check Valves Product Description These check valves are designed specifically to withstand the rugged duty cycles of a steering system and perform their functions reliably to prevent kickback in the steering wheel Performance Data Pressure Drop Curves Inlet Check Valves The check valve is installed directly into the pressure port of CharLynn steering control unit Connection of the hose assembly is either a Male 37 end or O ring face seal ORS Straight 90 elbow configurations are available see installation drawing next page 6 90 Straight 9
55. Max 11 16 20 UNF Displacement D Max O ring Port 2 ve 8 9 35 M ax cm3 r in3 r mm in 12 Tooth Involute Spline i 3 39 Plug in PP Port 490 30 205 5 8 08 16 32 D P 309 P A 9 3 37 M in Depth 5 8 15 2 60 M in Deep 7 1 28 M ax 625 38 211 4 8 32 M ating Spline Depth 955 3 76 X 795 48 219 0 8 62 Load Sensing Unit Only DS 985 60 228 4 8 99 D 1230 75 239 8 9 44 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 47 Steering Control Units Series 25 Performance Data Average Pressure Drop Neutral Pressure Drop Open Center at Full Valve Deflection Fluid Viscosity 25 cSt 120 SUS 75 SESS A 60 pt _ p_ L0 p H e A ei 4 bar gedeelt vm 30 gt 400 6 80 bar PSI 4 15 200 2 40 0 0 0 0 0 38 73 114 151 0 38 15 114 10 20 30 40 10 20 30 l min GPM l min GPM Input Torque Pressure Relief Characteristics l min l 20 40 60 80 100 300 t t t 4500 4000 E 200 3000 4 bar 2500 PS1 0 0 150 2000 0 10 20 30 40 50 60 70 80 90 100 Low Torque Percent Deflection 100 1500 ka Wide Angle 1000 0 0 0 5 10 15 20 25 GP M SCU Valve Section Check Valve Characteristics l min Left Right 0 20 40
56. acement pump or a Closed center system with a pressure compensated pump offers many of the features of a load sensing system Excess flow is available for auxiliary circuits Listed below are the components of a typical load sensing control circuit and a brief application description Pump M ay be fixed displacement pressure compensated or flow and pressure compensated design Priority Valve Sized for design pressure drop at maximum pump output flow rate and priority flow requirements The minimum control pressure must assure adequate steering flow rate and must be matched with the steering control unit A dynamic signal priority valve must be used with a dynamic signal steering control unit Steering Control Unit Designed for specific rated flows and control pressures It must be matched with a control pressure in the priority valve to obtain maximum steering rates Higher flow rates require higher control pressures Neutral internal bleed assures Component temperature equalization LS Line A LS line is always needed to sense pressure downstream from the variable control orifice in the steering control unit This is balanced by an internal passage to the opposite side of the priority control spool The total system performance depends on careful consideration of the control pressure chosen and pressure drop in the CF line Steering Relief Valve Must be factory set at least 10 bar 145 PSI
57. and cannot be used for auxiliary functions Load Sensing CharLynn load sensing torque generators use conventional or load sensing power supplies to achieve load sensing steering The use of a load sensing torque generator and a priority valve in anormal power steering circuit offers the following advantages Provides smooth pressure compensated steering because load variations in the steering circuit do not affect axle response or maximum steering rate beyond system capability by splitting the system into two independent circuits Only the flow required by the steering maneuver goes to the steering circuit Flow not required for steering is available for use in the auxiliary circuits because the steering circuit always has flow and pressure priority CharLynn load sensing torque generators and priority valves can be used with open center closed center or load sensing systems Used either in an open center system with a fixed displacement pump or a closed center system with a pressure compensated pump these torque generators offer many of the features of a load sensing System Excess flow is available for auxiliary circuits 217 Series Gerotor Unit 227 Series Geroler Unit Standard Open Center Input Torque Output Torque k Gerotor Geroler AM Direct Mechanical Link i E t UN u Torque Generator Power
58. ble to automobile steering gradually releasing the wheel mid tum will allow the steering wheel to spin back as the vehicle straightens The cylinder system used with load reaction units must have equal oil volume displaced in both directions The cylinders should be a parallel pair as shown or one double rod end unit Do not use with a single unequal area cylinder system Closed Center System Non Load Reaction Circuit L y Ip Gerotor Direct l M etering Mechanical Mechanism Link I i i A ror P N Steering Control Unit Pressure and Flow Compensated Pump L Gerotor M etering Mechanism Direct ___ Mechanical Link Fixed Pump Open Center System Load Reaction Circuit EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 N Steering Control Unit Displacement 11 Steering Units with Integral Valves Integral valves are available for the CharLynn steering control unit Included are Inlet Relief Valve Cylinder Port Shock Valves LS Relief Valve and Anti Cavitation Valves for cylinder ports In addition a M anual Steering Check Valve for limited manual steering is included The integral valves eliminate the need for a separate valve block and provides ver
59. cantly reduce or eliminate the jerky motion of vehicles with articulated steering systems This has been accomplished by increasing the maximum deflection of the spool relative to the Sleeve Increasing the deflection reduces the gain This in tum reduces acceleration and jerk levels and provides overall smoother vehicle performance The steering still responds fast enough so the operator does not notice the reduced gain Benefits Minimizes jerking motion on medium and large articulated vehicles J erk reducing valves and accumulators can be eliminated on most vehicles Avaliable on Series 10 Series 20 standard and Series 25 Eliminates need for cushion valves Applications Articulated Vehicles Wide Angle Steering Control Units Patent No 5080135 18 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 Flow 2 3 Time Seconds Standard Steering on a 25 Ton Loader J erk g sec T FOE 0 1 4 2 3 Time Seconds Wide Angle Steering on a 25 Ton Loader These graphs show a computer simulation of the jerk levels and have been verified by actual vehicle tests i Es Le ea 6 Eaton Patented Technologies Cylinder Damping Description Cylinder damping can help smooth the steering action of large articulated vehicles such as loaders scrapers and skidders These vehicles have overhanging weight with high inertial loads This energy is dissipate
60. cle with loss of engine power may not be possible with a large displacement Steering control unit SCU Q Amp with manual feature has the smaller displacement required for manual steering and has the additional flow requirement of the larger displacement SCU for power steering e Single Cylinder Unequal area On vehicles with one single unequal area cylinder the steering wheel turns lock to lock are more in one direction than the other When extending the rod one would get more tums than when retracting it A different Q Amp ratio while turning in one direction versus the other can be used to give an equal number of turns lock to lock in each direction Conventional Steering Control Unit Fast Rotary Ly Meter Le Turn Valve a v E Pump y Cylinder y be Q Amp Steering Control Unit Fast Tum y Fast Rotary Meter Turn Valve m Pump Cylinder y Il Q Amp Steering Control Unit Slow Tum Y No Flow ee Slow Rotary Meter h Turn Valve La V D Pump EM Cylinder y 16 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Covered by one or more of the following U S and foreign Patents 4759182 4862690 4781219 Unequal area Q Amp Eaton Patente
61. ct F Load Sensing Dynamic signal Ports M10 x 1 5 Column ircui d i Mounting Threads 13 SES pues a eg GC Geo ave Use with Load Sense SES Sege Ener vave YAAN Square 4 x G 375 BSP Striaght 04 Inlet Check Valve M anual i Thd Ports M10 x 1 5 Column Steering Check Valve 05 Inlet Relief Valve ee we Hr anis M anual Steering Check Valve p 12 Cylinder Relief Valve YBRN Square 5 x G 375 BSP Striaght Anti Cavitation Valve Thd Ports M10 x 1 5 Column Inlet Relief Valve Mounting Threads Inlet Check Valve Use with Load Sense Manual Steering Check Valve 13 Cylinder Relief Valve 2 Ld ME cnm Anti cavitation Valve Inlet Check Valve Load Sensing Relief Valve 23 Fluid Type A See Eaton Technical Manual Steering Check Valve Bulletin 3 401 14 15 Integral Inlet 00 None 24 Special Application O None ea Valve if Se ae ee Gen 25 26 Special Feature AA None etting ar 17 63 bar 914 PSI 27 Paint 1 Black Primer 26 70 bar 1015 PSI 28 Identification 0 Eaton Product Number on 2G 80 bar 1160 PSI Nameplate 2T 90 bar 1305 PSI 29 M echanical A Ta i pered 17919mm 7055in 34 100 bar 1450 PSI Interface diameter 083 1 and serrated a ee B12 PSII 175 688 diameter 40 tooth 16 17 Cylinder Relief 00 None M 16x15 6g Extension length Setting 37 103 bar 1490 PSI 65 02 2 56 42 130 bar 1890 PSI D Internal involute spline12 tooth 55 185 bar 2680 PSI 16 32 DP 30 degree PA 68 200 bar 2900 PSI 30 Eaton Assigned B Assigned Design C
62. d Technologies Q Amp Flow Amplification for Load Sensing Circuits Applications Articulated vehicles such as wheel loaders log skidders scrapers trucks and similar vehicles can benefit from this feature Variable Ratio Wheel Loaders e Scrapers e Articulated AG Tractors Articulated Dumpers e Mine Trucks Forestry Equipment e Rough Terrain Lift Trucks While roading a slow movement of the steering wheel input speed will not overcorrect steering Increasing input speed will produce the additional steering flow required to quickly change the vehicle s direction Variable Ratio with Manual Steering e AG Tractors Small Wheel Loaders e RubberTired Excavators e Sprayers Site Handlers Graders e Combines For example operating log skidders in the woods requires very quick steering This same log skidder on the road would be extremely difficult to steer a straight normal course The variable ratio feature provides good steering in both conditions Combines row crop tractors and large articulated agricultural tractors also can benefit from this feature when traveling down a field It will be easier to follow rows or furrows and still be able to make fast tums at the end of the rows EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 17 Eaton Patented Technologies Wide Angle Description Steering units with wide angle features have been developed to signifi
63. d by the cylinder damping orifices which bleed a small amount of flow from the cylinder port to tank Cylinder Damping has 3 different levels of application The number of levels equal to the number of Cylinder Damping CD orifices This technology is available on Series 10 Series 20 Series 25 and Series 40 Not all SCUs come with all 3 levels Steering Control Units with Cylinder Damping Patent No 5080135 Features Three levels engineered to fit your application Benefits e Reduces jerking motion on medium and large articulated vehicles e Available on the following steering control units Series 10 20 25 40 e Damps or stabilizes unstable systems Applications Large Articulated Vehicles e Wheel Loaders e Skidders e Scrapers Flow Amplification without Cylinder Damping EATON Char Lynn Steering Catalog C STOV MCOOT E1 July 2006 19 Eaton Patented Technologies VersaSteer Description Eaton s patented VersaSteer technology offers operatorselectable Metered or Quick Steering modes at any time with the touch of a button or the flip of a switch and provides the operator flexibility to significantly improve the overall steering experience Dual Steering Modes Metered Steering The steering unit operates the same as a traditional hydrostatic steering control unit Steering flow is a function of steering wheel rotations rpm Metered gerotor steering pr
64. displacements the number of turns lock to lock may be significantly decreased Operator effort is greatly reduced during the work cycle The number of turns lock to lock could go down to 0 5 where the ratio of the two gerotor displacements could vary from 1 1 to as high as 5 1 providing great flexibility in the design 14 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Benefits Manual steering capability in unpowered mode emergency steering e Steering flow is always proportional to steering speed Allows for excellent roadability and operator selectable quick steer for work cycles Features Open Center Load Sense All Integral Valves Wide Angle Max System pressure 241 Bar 3500 psi Applications All Ackerman Steering Tractors Telehandlers Sweepers Forestry Equipment Backhoes Loaders Sprayers Combines Motor Graders Special Features and Application Dual Displacement Description The dual displacement steering control unit allows manufacturers of off road vehicles to retain manual steering capabilities while reducing the number of components in their system By using two displacements in one unit we offer a better solution to manually steer a vehicle in an unpowered mode without the need of a back up power system resulting in a more economical machine The dual displacement steering unit uses two gerotors and a pressure controlled logic va
65. draulic Schematic attach 29 OS1 Operator Seat 11 Bl 30 OS2 Operator Seat 12 B2 31 Weight Front Bogey 13 C1 32 Weight Rear Bogey 14 C2 33 11 Mass Moment of Inertia about CG1 Front 15 El 34 12 Mass Moment of Inertia about CG2 16 E2 Rear no 85 Tire Size Pressure 18 Weight Front Axle Width Ballast Unloaded 19 Weight Rear Axle Note Unloaded e t30Should always be completed this information is needed for 20 Weight Front Axle basic steering system sizing Loaded 1 26Needed for sizing and an analysis of steering pressure characteristics 21 Weight Rear Axle 1 35Needed for a full steering system analysis including Loaded sss dynamic characteristics EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 97 Eaton 14615 Lone Oak Road Eden Prairie MN 55344 USA Tel 952 937 9800 Fax 952 974 7722 www hydraulics eaton com E T N Eaton 20 Rosamond Road Footscray Victoria 3011 Australia Tel 61 3 9319 8222 Fax 61 3 9318 5714 Char Lynn Eaton Eaton Fluid Power GmbH Dr Reckew eg Str 1 D 76532 Baden Baden Germany Tel 49 0 7221 682 0 Fax 449 0 7221 682 788 2006 Eaton Corporation All Rights Reserved Printed in USA Document No C STOV M C001 E1 Supersedes C STOV M COO1 E J uly 2006
66. e Displacement cm jr in3 r 80 4 9 102 6 2 160 9 7 ee Torque Output 69 Nm 86 Nm 131 Nm rest mmn at 70 bar 1000 PSI 608 b in 7601b in 1160 lb in S ST Recommended Flow 11 7 l min 15 1 l min 18 9 l min y i Rated Pressure Depends on model See 3 1GPM 4 GPM 5 GPM chart circuit type below Max Operating Speed 125 RPM 118 RPM 102 RPM at Rated Pressure and Recommended Flow Circuit Type In Port Out Port Aux Port Max In minus Out Open Center 69 bar 1000 PSI 3bar 50PSI Power Beyond 138 bar 2000 PSI 3bar 50PSI 138 bar 2000 PSI 69 bar 1000 PSI Load Sensing 69 bar 1000 PSI 3bar 50PSI 69 bar 1000 PSI Open Center w Case Drain 172 bar 2500 PSI 103 bar 1500 PS1 3bar 50PSI 69 bar 1000 PSI EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 55 Torque Generator Model Code Ordering Information The following 20 digit coding system has been developed to identify all of the configuration options for the torque generator Use this model code to specify a torque generator with the desired features All 20 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box 1 2 3 4 amp 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B P 0 1 A 1 A A 1IB Nos Feature Code Description Nos Feature Code Description 1 2 3 Product Se
67. e ee R E Pe L R y Gerotor To Auxilliary Circuit LA Open Center Valves Fixed Displacement Pump Hydraulic Circuit Explanation Neutral Circuits Closed Center Closed Center Uses a pressure compensated variable displacement pump Closed Center with Neutral Bleed Neutral Bleed Feature Closed Center Steering Control Units are available with and without neutral bleed feature M ost applications may not require the bleed feature however the maximum temperature differential between components within the steering circuit must not exceed specification 50 F or 28 C Order unit with the bleed feature if the temperature differential may exceed this limit The neutral bleed feature allows a small flow of fluid to pass through the unit when in neutral to reduce the thermal differential In neutral position pump and tank are disconnected Most suitable on large construction equipment Typical applications where neutral bleed is required are Remote steering position from power source Extended engine idle operation when vehicle is parked High duty cycle operation sharing a common reservoir with the steering circuit Applications Construction Industry Pressure Compensated Pump
68. e with Load Sense Relief Option Only Cylinder Relief Valves 2 Standard or Anti Cavitation Valves 2 High Capacity Shaft Bearing Centering Spring Sleeve Spool Gerotor Cap Screw Seal Race 3 piece BN S F ee Housing Bearing Needle Pin Ball Check Drive O ring SpacerPlate End Cap View of Gerotor Section 42 EATON Char Lynn Steering Catalog C STOV MCOO1 El J uly 2006 Steering Control Units Series 20 Performance Data Cylinder Relief Valve Pressure Drop versus Flow Flow l min 4 6 8 10 2 14 16 18 350 5000 N co ce o v AAA ADA 4000 PSI N o 3000 Ee tere 120001 1 2 3 4 5 Flow GPM Legend P1 P2 P3 P4 Code 4Z 5S 6 7B Input Torque 32 28 24 20 16 Ib in 12 Nm 0 0 10 20 30 40 50 60 70 80 90 100 Standard Torque Percent Deflection Low Torque EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 43 Steering Control Units Series 25 Product Description The Series 25 SCU includes two patented designs Balanced Architecture and Wide Angle that make it even more responsive reliable and cost effective Features Open Center Closed Center Load Sensing Integral Valves Q Amp Wide Angle Pilot Pressure Port This is an added feature that can be used for Pilot pressure to priority
69. eel with horn button option 209 1023 362mm 15in diameter 3 spoke steering wheel with knob standard and optional horn button 209 1024 400mm 16in diameter 3 spoke steering wheel with soft feel and hom button option Note All steering wheels are compatible with column upper shaft end AJ Hom Buttons 9900416 For CharLynn steering column with upper shaft end AJ and steering wheel 209 1022 and 209 1023 9900417 For CharLynn steering column with upper shaft end AJ and steering wheel 209 1024 Caps 9900308 CharLynn steering wheel hub cavity cap for no horn installations Used on steering wheel 209 1022 and 209 1023 9900415 CharLynn steering wheel hub cavity cap for no hom installations Used on steering wheel 209 1024 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 83 Steering System Components Steering Wheels and Accessories oo Lower End Type 3 Ref This Noise Isolator is Available from Eaton Part Number 208 1017 002 2 6 3 25 Dia See Note Below See Note Below Upper Shaft End EJ Ref 61 0 2 40 Note Two screws 3 8 24 UNF x 31 8 1 25 long notincluded are required to join isolator to mating steering columns Torque screws to 41 Nm 360 Ib in Want to Make your Own Column You Must use these Spline Specs Lower Shaft End M ajor Dia Minor Dia 16 97 16 59 668 653
70. em Temperature 50 F M ax System Operating Temperature 93 C 200 F Input Torque Powered 1 1 2 8 Nm 6 9 bar back pressure Non Powered 10 25 Ib in 100 PSI back pressure 136 Nm 100 lb ft Fluid See Eaton Technical Bulletin 3 401 Recommended Filtration 150 18 13 cleanliness level EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 37 Steering Control Units Series 20 Model Code Ordering Information The following 29 digit coding system has been developed to identify all of the configuration options for the Series 20 steering control units Use this model code to specify a unit with the desired features All 29 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box L 2 3 4 6 7 89 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 ACC 6 A F N A A A 1 0 C Nos Feature Code Description Nos Feature 1 2 3 Product Series ACC Series 20 Steering Control Unit 12 13 Valve Options 4 Nominal Flow 4 38l min 10 GPM Q Amp pira td Se a Rating 6 76 l min 20 GPM Q Amp Check Relief Valve Valve 7 95 l min 25 GPM Non Q Amp A 114 l min 30 GPM Q Amp 00 5 Inlet Pressure 6 241 bar 01 Rating 3500 PSI 02 6 Retum Pressure A 10 bar 145 PSI Maximum 09 Rating 10 7 8 Displacement 40 60 3 6
71. esign Code 56 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Design Code Torque Generator Conventional System Circuits Conventional System with Two Pumps Extra cost of two separate circuits Generator Power Beyond Torque Cylinder Conventional System with One Pump Can result in insufficient steering flow when operating the auxiliary function eX Torque Generator Out Cylinder Generator Parallel circuit Steering has priority Simple system Single relief valve Flow to auxiliary function is reduced while steering Cylinder Valve EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 57 Torque Generator Conventional System Circuits Load Sensing System Steering has priority Auxiliary function can operate at higher pressure than steering rating priority valve isolates CF side from EF side pressures Flow to auxiliary functions reduced while steering High Back Pressure Torque Generator Series circuit auxiliary and steering pressures are additive All flow available to auxiliary function even while steering Separate relief valves required for steering and auxiliary 58 Torque Generator Relief Valve Cylinder Relief Valve EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Torque Generator Installation Drawing
72. he new Series 10 SCU has an unprecedented continuous pressure rating of 275 bar 4000 psi making it ideal for heavy duty equipment such as construction and agricultural machinery lts high pressure rating reduces overall equipment costs since smaller cylinder sizes can be assigned into the system The new Series 10 incorporates proven Eaton technologies An internal balanced architecture and a wide walled sleeve that is 4096 thicker than standard designs offer increased performance during transient pressure conditions Features Open Center Power Beyond Closed Center Load Sensing Integral Valves Q Amp 2 Speed Dual Displacement Versa Steer Wide Angle Cylinder Damping Applications Construction Machinery Agriculture M achinery Heavy Duty Equipment Marine Forestry Machinery Mining Equipment SPECIFICATIONS M ax System Pressure 275 bar 4000 PSI Max Back Pressure 21 bar 305 PSI Rated Flow Low Medium High Low with Q Amp Medium with Q Amp High with Q Amp 7 6 15 l min 2 4 GPM 15 30 l min 4 8 GPM 30 61 l min 8 16 GPM 8 19 l min 2 5 GPM 19 38 l min 5 10 GPM 38 76 l min 10 20 GPM M ax Differential Between Steering Unit and System Temperature 28 C 50 F M ax System Operating Temperature 93 C 200 F Input Torque Powered 1 1 2 8 Nm 6 9 bar back pressure Non Po
73. in Depth 7 1 28 M ax 60 51 59 49 Mating Spline Depth 2 382 2 342 63 25 62 49 16 3 64 80 3 3 16 2 490 2 460 ecd SS Load Sensing 081 132 Side Port 8 89 8 39 350 330 44 45 44 34 1 750 1 746 Dial Powered Manual Displacemert DimersionB DimersionA Displacemert DimersionC Displacement DimersionD cm r i re r mm in mm in cm r ire r mm in cm3 r ire r mm in Gerotor1 and 2 Gerotor1 Gerotor2 156 9 5 146 5 5 77 182 9 7 20 60 3 6 10 2 40 95 5 9 13 2 52 179 10 9 146 5 5 77 186 2 7 33 60 3 6 10 2 40 120 7 3 16 5 65 205 12 5 146 5 5 77 189 7 7 47 60 3 6 10 2 40 145 8 9 20 0 79 218 13 3 146 5 5 77 191 5 7 54 60 3 6 10 2 40 160 9 7 21 8 86 244 14 9 146 5 5 77 195 1 7 68 60 3 6 10 2 40 185 11 3 25 4 1 00 36 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering Control Units Series 20 Product Description The Series 20 steering control unit continues Eaton s tradition of innovative design and high quality that began with the first fluid linked power steering system You can count on this steering unit to provide the same smooth predictable steering as the CharLynn steering units that provide dependable trouble free steering on applications around the world Provides much smoother steering function by minimizing jerky motion on articulated vehicles
74. ip of a switch and provides the operator flexibility to significantly improve the overall steering experience 2 Speed technology is available on the Series 10 Steering Control Unit SCU Dual Steering Modes Typically the gerotor between the SCU housing and the shift valve is the smaller gerotor first gerotor The shift valve is activated by the operator which allows or prevents flow to the second gerotor A separate solenoid valve provides the pressure pilot signal to shift the aforementioned valve The OEM will define and provide the operator switch to activate the solenoid valve Metered Steering Mode 1 The steering unit operates the same as a traditional hydrostatic steering control unit Steering flow is a function of steering wheel rotations rpm Metered gerotor steering provides precise responsive and smooth steering All the flow is metered by the first gerotor resulting ina greater number of turns lock to lock In case of pressure loss the shift valve automatically prevents flow to the second gerotor and emergency steering is available via the first gerotor Metered Steering Mode 2 The steering unit operates the same as a traditional hydrostatic steering control unit except the flow is metered for a combined displacement of two gerotors As with Mode 1 steering flow is a function of steering wheel rotations As the total displacement per rotation is the sum of the two gerotor
75. its SCU are exciting new products designed for low flow low pressure applications The Series 5 units are available in two compact designs Option 1 Square Housing M ount Unit with Side Ports Option 2 Round Housing Mount Unit with End Ports In addition to the installation flexibility provided by the two options above this new family of products has best in class steering feel and provides crisp centering These units also have better efficiency lower pressure drop than competitive units Power Beyond M odels Optional power beyond steering control units supply steering and flow to auxiliary Valve functions The power beyond unit is used in open center fixed displacement pump systems in the medium pressure range When not steering the power beyond unit directs all inlet flow to the excess flow port power beyond for use in the auxiliary circuit Once steering is initiated and since steering has priority inlet flow will be diverted to the steering circuit as required Flow out the excess flow port power beyond and tank port will vary or stop depending upon the steering requirement The tank port of the steering unit has flow only when steering is operating Features Open Center Load Sensing Open Center Power Beyond Integral Column Manual Steering Check Valve nlet Relief Valve Load Sense Relief Valve Cylinder Relief Valve Anti Cavitation Valve Applica
76. kers Screw in Cartridge Valves Cat V VLOV M COOL E2 and Vickers Proportional Valves Cat 539 Features Applications features counterbalance valves on the tum ports USapm l min Spool 33C22A P A or B plus B or A T SC 4 T 8 to minimize leakage and 10 077 i _ improve stability The 36 1 I counter balance valves 9071 32 L1 d make it particularly 80 100 bar 00 pa i suitable for articulated 2 al ES am as Sr een g 7 071 4 d machines and machines y 99 er 95 DN with hydraulic Tie Rods 3 BDT 10 bar 145 psi _ such as sprayers T sot 9 e The valve also features Ant 16 a load sense drain and 304 12 shuttle checks to resolve the load signal 207 8 with the steering 107 4 Orbitrol making it L itable for in Dc orai 0 10 20 30 40 50 60 70 80 90100 signal systems Command signal of max signal the X I i wo NN 9 SC T D Or Y gt 9 lt o o gt SPECIFICATIONS Max System Pressure 210 bar 3000 PSI Rated Flow 85 bar 72 5 PSI single pass 19 l min 5 GPM Ordering Information Choose one of the Part Numbers with different Port Options Ports Part Number BT RL LS 5991008 001 3 4 16 UNF 3 4 16 UNF 7 16 18 UNF 5991010 001 M18 x 1 5 6H M18 x 1 5 6H M12 x 1 75 6H 5991012 001 3 4 16 UNF 9 16 18 UNF 7 16 20 UNF EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 85 Steering
77. lve The logic valve switches between two displacements one displacement for manual steering and the total of both displacements for powered operation The logic valve is spring returned to the smaller manual displacement when inlet pressure falls below 8 bar 120 psi Above 8 bar 120 psi the logic valve connects both gerotors to provide full powered displacement Added Gerotor Logic Valve T t Tri ER M anual Gerotor Manual steering capabilities in unpowered mode Eliminates the need of a back up emergency system Engages the small displacement in an unpowered mode and allows manual steering Allows vehicles to meet ISO TUV road regulations without the need of the currently used emergency system Performance in powered mode Both gerotors are engaged to steer the vehicle Same performance as other CharLynn steering units Additional Features e Steering circuit Load Sensing Dynamic Signal Max system pressure 241 bar 3500 psi Valve options and other features same as those available on Series 10 single displacement units aro O m DISPLACEMENT CHART Gerotor 1 Gerotor 1 and 2 Gerotor 1 Gerotor 1 and 2 Manual displ Powered displ Manual displ Powered displ in3 rev in3 rev cm3 rev cm3 rev
78. n W ire 127 0 5 00 Below Pivot YM Not Available with Horn Wire 12 16 Horn Wire Feature 00000 No Horn Wire page 79 1A045 Single Horn Wire 9 10 11 Jacket Length 022 56 6 2 23 28045 Two Horn Wires mm in 033 82 8 3 26 17 Horn Brush Wire 0 None Select When No Hom Wire Used Suggested Std 058 147 8 5 82 Terminal End D SAE J 928 Pin and Double End Connector Dim 078 1971 7 76 page 79 K Blade Receptacle Insulated 099 250 7 9 87 Compatible with SAE J 858a S E 18 19 ShaftEndWire 00 None 157 3098 15 74 Terminal 01 One Horn Button Only with One Horn Wire 178 4516 17 78 page 79 02 One Horn Button with W ire Eyelet 253 6421 25 28 Select with Two horn Wire 273 692 4 27 26 08 Tinned Bare W ire End 298 756 4 29 78 20 21 Special Feature 00 None a ima m 22 Eaton Assigned 080 2032 8 00 Design Code B For Tilt columns BOLT amp NUT KITS Separate kits are available for purchase to use with steering columns Metric Cap Screw Kit M10x 1 5 Thread x 20mm Lenth Qty 4 9900157 000 Standard Cap Screw Kit 375 16 UNC Thread x 75 Length Qty 4 9900158 000 Metric J am Nut Kit M 18 x 1 5 Qty 1 9900159 000 Hex Nut Kit 13 16 20 NEF Qty 1 9900160 000 Hex Nut Kit 11 2 12 UNF Qty 1 9900161 000 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 73 Steering System Components Columns J acket Base Type Example see model code page 73 Po
79. ng Series 10 Quick Steering SPECIFICATIONS 1 System Pressure Rating a 241 Bar 3500 psi Series 10 b 241 Bar 3500 psi Series 20 2 Back Pressure Rating 21 Bar 305 psi 3 Flow Rating a 15 gpm Series 10 b 25 gpm Series 20 20 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Eaton Patented Technologies STC Direct Porting With the Snap To Connect STC Direct Porting is Benefits STC Direct Porting option available with Series 5 and e STC Direct Ports the fitting profile is Series 10 Steering Control provide a great machined into the SCU Units opportunity for housing eliminating the need for extra STC fittings This revolutionary and patented porting technology provides leak proof sealing and has operating pressure capability exceeding 4500PSI 310bar Backup Retaining Housing Washer Ring O Ring STC Port significant cost savings compared to threaded fittings Eliminates the need for assembly tools during installation Eliminates installation variability Seal Release Sleeve STC Hose Connector Improves ergonomics reduces installer effort to connect Improves serviceability High quality leak proof seal Eliminates connector leakage Compact design and overall lighter weight EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 21 Steering Control Units Series 5 Product Description The new Series 5 steering control un
80. nge with Tabs Flange without Tabs 6 1 24 Flange for Round Series 5 with Side or End Ports 12 Tooth Spline to Fit Char Lynn Steering Control Units 3 Position 6 3 4inch D Section Noise Isolator Not Icluded for Noise Isolator 18 8 74 M in _ 10718 105 6 13 54 13 44 4 24 4 16 533 529 Upper Shaft End EJ Ref EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 75 Steering System Components Columns Upper Shaft End Example see model code page 73 Position 7 8 EJ 36 Tooth Straight Serration Not available with hom wire AJ EJ Position 7 8 45 34 Position 7 8 45 34 R 1 6 06 26 4 1 04 F 1 785 Max 12 7 50 21 8 86 4 Note Torque Nut to 1521 60 41 54 Nm 30 40 Ib ft i For bending moment 16 26 640 calculation when using Eaton wheel product 36 Tooth Straight Serration No 209 1007 wheel rim 2 EN 18 59 732 Major Dia is 22 1 87 above threaded E h end steering shaft 13 16 20 UNF 2A Thread MJ GC Position 7 8 Position 7 8 45 34 26 4 1 04 12 7 50 Not Available Note Torque Nut to 41 54 Nm 30 40 lb ft For bending moment calculation when using Eaton wheel product No 209 1007 wheel rim is 22 1 87 above threaded end steering shaft 36 Tooth Straight Serration 21 79 858 M ajor Dia M 20 x 1 5 6g Thread with Horn 30 99 1 220 i 22 17 873 Dia Wire 9 48 373 Dia Crosshole 10 9 43 DN
81. nput or torque to the steering wheel which provides limited manual steering This feature is available in all steering models except for Series 25 and 40 Use of Graph 1 Determine steering work Find the input torque limit port pressure required to preform the desired steering maneuver from vehicle test data This defines the approximate manual steering pressure level required Find this value on the vertical axis and construct a horizontal line on the graph 1000 800 600 on the horizontal axis PSI Follow this vertically until it crosses the required pressure line of step 1 400 The maximum steering unit displacement is identified by the first angled line to the left of igle 200 this intersection 30 60 RPM Displacement n 1 3 RPM RPM em3 r in3 r 70 a6 2 8 59 356 A so 120 50 40 bar 27 20 54 81 108 136 40 60 80 100 M anual Input Torque Nm Ib ft 1 Maximum flow less than 7 6 l min 2 GPM 2 Actual steering pressures required and manual steering capabilities must be verified with vehicle testing The above curves are intended as a design guide only EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 13 Special Features and Application 2 Speed Description Eaton s 2 Speed technology offers two operator selectable metered modes at any time with the touch of a button or the fl
82. ockets or pinions when compactness of application does not allow for outboard bearings Gerotor or Geroler Element This is a fluid displacement element consisting of an outer ring gear and an internal star Manual low torque input actuates the spool of the spring centered spool and sleeve valve allowing high pressure oil to tum the internal star This star is coupled with a splined drive to the output shaft and also the sleeve of the spool and sleeve valve High pressure oil turning the star in this gerotor or Geroler element is generating high output torque The Geroler elements have not been offered on torque generators in the past These Gerolers have rolls incorporated into the outer ring and the rolls provide rolling contact with the star point minimizing friction and improving efficiency Limited Manual Steering Relative deflection of the input and output shafts is limited mechanically within the unit so that limited manual steering is still possible in the event of power loss Reaction Torque Resistance Customer supplied bracket is required for reaction torque resistance EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Load Sensing Input Torque Output Torque Gerotor Geroler Direct Mechanical Link In Out R N is H orque Generator Open Center with Case Drain Input Torque E 7 Output Torque Gerotor Geroler
83. ode All low torque units need approval from an Eaton Steering Engineer Design Code EATON Steering Catalog C STOV MCOOI E1 May 2006 23 Steering Control Units Series 5 Model Code Ordering Information Round Housing with End Ports Option 2 The following 30 digit coding system has been developed to identify all of the configuration options for the Series 5 steering control units Use this model code to specify a unit with the desired features All 30 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 AIBIR A 0 A 0 0 AJO 1 0 B Nos Feature Code Description Nos Feature Code Description 1 2 3 Product Series ABR Series 5 Steering Control Unit 18 19 20 21 Ports and VAAH Round 4 x 9 16 SAE Ports 1 M ounting Threads M6 x 1 0 Column Mounting A E Flow B e i mn Threads Use with Open Center atin min Ms i VAKH Round 5 x 9 16 SAE Ports 5 Inlet Pressure M6 x 1 0 Column Mounting Rating C 140 bar 2030 PSI Threads Use with Excess Flow 6 Tank Pressure A 10 bar 150 PSI VAEH Round 5 x 9 16 SAE Ports Rating M6 x 1 0 Column Mounting 7 8 Displacement 35 315 cm3 r 192 in3 r WAAH Round 4 x 06 STC Direct Ports 37 39 5 cm3 r 2 41 in3 r M6 x 1 0 Column Mounting
84. of the Eaton brake valve is that it accommodates dead engine braking The valve contains a large internally cored area that acts as a reservoir providing oil for brake actuation in the manual mode The valve design allows the volume and pressure required for manual braking to be generated without excessive pedal force Thus the load sensing brake valve offers the benefits of powered brakes and manual brakes in a single package eliminating the need for an accumulator Features No dedicated pressure source separate pump or accumulator required when the Eaton Power Brake Valve is used Reduces plumbing requirements Efficient no parasitic loss Self contained compact package Two stage master cylinder with built in reservoir provides dead engine braking Lower input efforts and reduced pedal travel for braking Optional pilot operated check valve Specifications Valve Max Rated Pressure 205 bar 3000 PSI Rated Flow 11 l min 3 0 GPM For more information contact Eaton Mobile Valves team Steering System Components T Series Hydraulic Motors CharLynnT Series low speed high torque Geroler motor developed with low speed low leakage valving specifically for steering applications see Catalog E M OLO M COOT E2 Low Speed High Torque Motor page B 4 10 Code AB Position 11 12 Pressure Capability Continuous 155 bar 2250 PSI Intermittent 190 bar 2750 PSI Speeds
85. og 11 508 65 Steering System Components VLE In Line Priority Valves 150 l min 40 GPM Rated Flow 188 6 7 40 A 74 7 2 94 43 9 1 73 Relief Valve Qualified for 276 bar 4000 PSI M ax Rated CF Pressure is 276 bar 4000 psi Rated Inlet and EF pressure is 303 bar 4400 psi 34 8 al 1 37 Inlet Pressure a for 5 16 Inch Dia Mounting Bolts 2 Mos uns Flow 97 3 3 83 Excess Flow Load Sensing 130 0 5 118 gt 1 Control Pressure bar PSI Product Number Static Dynamic Static Dynamic Static Dynamic Example 606 1094 003 QA Ports 5 Port Size Signal Signal Signal Signal Signal Signal T_ System Pressure 45 65 5 5 80 6 9 100 8 6 125 10 3 150 12 8 185 Product Number Code Number P amp EF 11 16 12 The product number above left describes a VLE Series u he E 606 1093 606 1294 606 1094 606 1295 606 1095 606 1296 with 6 9 bar 100 PSI control pressure static signal P amp EF 1116 12 1 1 16 12 P and EF ports 3 4 16 CF port 7 16 20 LS 7 and T ports 172 bar 2500 PSI relief valve setting R j 606 1046 606 1341 606 1047 606 1342 606 1048 606 1343 P amp EF 1516 2 CF 7 8 14 606 1058 606 1344 606 1059 606 1345 606 1060 606 1346 LS amp T 7 16 20 Code System Pressure Number bar PSI P amp EF 15 16 12 CF 15 16 12 606 1141 606 1347 606 1142 606 1348 606 1143 606 1349
86. ounting Threads Load AAWN Sensing Relief Only RADN FAVN SAVN Use with 114 l min 30 GPM Description None 210 bar 3050 PSI 220 bar 3190 PSI 230 bar 3340 PSI 240 bar 3480 PSI 250 bar 3630 PSI 260 bar 3770 PSI 270 bar 3920 PSI 280 bar 4060 PSI 290 bar 4210 PSI 300 bar 4350 PSI 4 x G 1 2 BSP Ports with G 1 4 BSP Load Sensing Port on Side M10 Mounting Threads 4 x 3 4 SAE Ports with 7 16 SAE Load Sensing Port on Side M10 Mounting Threads 4 x M18 Metric Ports with M 12 Metric Load Sensing Port on Side M10 Mounting Threads 4 x M18 Metric Ports with M 14 Metric Load Sensing Port on Side M10 Mounting Threads 4 x 7 8 SAE Ports with 7 16 SAE Load Sensing Port on Side M10 Mounting Threads 4 x M22 Metric Ports with M 12 Metric Load Sensing Port on Side M10 Mounting Threads 4 x M22 Metric Ports with M14 M etric Load Sensing Port on Side M10 Mounting Threads 4 x 3 4 SAE Ports with 7 16 SAE Load Sensing Port on Port Face M10 Mounting Threads 4 x G 1 2 BSP Ports with G 1 4 BSP Load Sensing Port on Port Face M 10 Mounting Threads 4 x 7 8 SAE Ports with 7 16 SAE Load Sensing Port on Port Face M10 Mounting Threads 4 x M18 Metric Ports with M 12 M etric Load Sensing Port on Port Face M 10 Mounting Threads 4 x M22 Metric Ports with M 12 M etric Load Sensing Port on Port Face M 10 Mounting Threads Nos Feature 22 Input Torque 3 23 Fl
87. ovides precise responsive and smooth steering Quick Steering Gerotorless quick steering provides a much different effect enabling the operator to put the vehicle in full lock while only turning the steering wheel a few degrees This is achieved by hydraulically blocking the flow of oil to the gerotor with a shift valve Full steering flow can be obtained by deflecting the steering wheel 45 for a Series 10 and 50 for a Series 20 Operator effort is greatly reduced during the work cycle VersaSteer is covered under US Patent No 6 318 078 Benefits Provides steering System cost savings by eliminating the need for a separate joystick Available on Load Sense steering systems Compatible with Integral Valves Bolt On Priority Valves Q Amp and Cylinder Damping Emergency manual steering capability Minor size increase can retrofit to existing vehicles e Smoother steering with Eaton Patented Wide Angle technology Features Dual steering modes in one integrated Steering Control Unit SCU High pressure rating and flow capabilities Compatible with current steering options Easily retrofit to existing vehicles Proven base technology Easy one touch switch OEM defined VersaSteer System Components Steering Control Unit Solenoid Shift Valve Four 04 hoses Electric Switch Series 10 VersaSteer Series 20 VersaSteer Traditional Metered Steeri
88. ow ed Pump Closed Center Load Sensing Circuit EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Hydraulic Circuit Explanation Neutral Circuits Load Sensing Static Signal Static Signal Used for Open Center Pump conventional applications 10 where response or circuit stability is not a problem The load sensing pilot line should not exceed 2 meters 6 feet in length EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Static Signal eS ee Load Sensing Static Signal Steering Control Unit non load reaction I 5 Auxiliary EF _ Circuit with da 7 11 Open Center T X ITI Valve s I pe I Priority Valve Static Signal C Fixed Displacement Pump Load Sensing Steering System with Fixed Displacement Pump Open Center Circuit Hydraulic Circuit Explanation Work Circuits Non Load Reaction and Load Reaction Non Load Reaction A non load reaction steering unit blocks the cylinder ports in neutral holding the axle position whenever the operator releases the steering wheel Load Reaction A load reaction steering unit couples the cylinder ports internally in the neutral position with the meter gear set Axle forces are then allowed to retum the steering wheel to its approximate original position Compara
89. placement of steering control unit per revolution Before proceeding to evaluation required pump flow the maximum required steering wheel speed must be determined Typically 120 revolutions per minute RPM is used for Rmax EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 It is important at engine low idle condition that the maximum steering wheel speed should be more than 60 rpm For engine normal idle condition maximum steering wheel speed should be more than 100 rpm if possible When using open center SCU connected with pump directly maximum pump flow should be less than 14 times of SCU rated flow Higher flow into SCU increases pressure loss of the steering system If higher flow is unavoidable install a flow divider valve into the system or use a load sensing system Sizing and Application Articulated Type Steering Eaton s Hydraulic Division has developed a computer program to assist articulated vehicle designers with a steering system analysis This analysis can provide basic system sizing pressure requirements or a complete system analysis including dynamic characteristics This analysis is intended to be used as a guide only and is not to be used solely as the final determination of system design Other factors and variables will have to be considered To receive output from this program provide the required information by using the form on the following page Contact an Eaton
90. ries ABP Torque Generator 9 Ports A 2 x 625 inch Dia Manifold Ports ith 2 x 5 16 18 UNC M ounting 4 5 6 Circuit Type NE and Ratings AAA 15 1 l min A GPM Open Center Holes e We port block Max Inlet 69 bar 1000 PSI EES Out 3bar 50 PSI B 3 x 625 inch Dia Manifold Ports with 3 x 5 16 18 UNC Mounting ES BE Open Center Holes use with port block Inlet 138 bar 2000 PSI C 2 x 9 16 SAE Ports Out 3 bar 50 PSI open center only Aux PB 138 bar 2000 PSI Dp Inlet out lt 69 bar D 3 x 9 16 SAE Ports 1000 PSI E 2 x G3 8 BSP Ports Limited to 76 4 7 80 4 9 open center only 96 5 9 cm3 r in3 r F 3 x G3 8 BSP Ports r Pressure 1 Output Shaft Needle Bearings Inlet 172 bar 2500 PSI 11 Integral Valves 0 None Out 103 bar 1500 PSI 12 InputTorque 1 Standard Aux CD 3 bar 50 PSI Dp Inlet out 69 bar 1000 PSI 13 Shaft Ends A 22 17 874 Dia with Keyway and CAD 15 1 l min A GPM Load Sensi See 1 l min o ensing Dynamic Signal 14 Shaft Seals 1 Quad Rings Inlet 69 bar 1000 PSI 15 Mounting A 5 16 18 UNC Out 3 bar 50 PSI Threads Aux LS 69 bar 1000 PSI 16 17 Special Feature 00 None 78 Displacement 08 76 4 7 Gerotor 01 Port Block Installed cm3 r in3 r 10 96 5 9 Gerotor 18 Paint and A Black Primer 17 160 9 7 Gerotor Packaging 58 80 4 9 Geroler ide 60 102 6 2 Geroler 19 Identification 1 Eaton Product Number on 66 160 9 6 Geroler Nameplate 20 Eaton Assigned B Assigned D
91. ring control units Use this model code to specify a unit with the desired features All 30 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box 123 4 A 6 7 8 9 DW 12 15 Y 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 A B IR C A 0 A A 0 1 0 B Nos Feature Code Description Nos Feature Code Description 1 2 3 Product Series ABR Series 5 Steering Control Unit 18 19 20 21 Ports and 4AAN Square 4 x 9 16 SAE Ports 4 Nominal Flow 1 11 l min 3 GPM Mounting Threads M10 x 1 5 Column Mounting Rating B 19 l min 5 GPM T inen Lm 5 Inlet Pressure C 140 bar 2030 PSI SNE mounting Rating Threads Use with Excess Flow 6 Tank Pressure A 10 bar 150 PSI AAEN Square 5 x 9 16 SAE Ports Rating B 21 bar 300 PSI M10 x 1 5 Column Mounting 7 8 Displacement 35 315 cm3 r 192 in3 r Threads Use with Load Sense 37 39 5 cm3 r 2 41 in3 r UAAN Square 4 x 06 STC Direct 39 50 8 cm3 r 3 10 in3 r Parts MIO x 1 5 Column 41 63 1 cm3 r 3 85 in3 r Mounting Threads Use with 43 73 8 cm3 r 4 50 in3 r Open Center 46 100 cm3 r 6 10 in3 r M 48 120 cm3 r 7 33 in3 r UBNN Square 5 x 06 STC Direct T Ports M 10 x 1 5 Column 9 Flow Amplification O None Mounting Threads 10 Neutral Circuit A Open Center Use with Excess Flow B Open Center Power Beyond UBPN Square 5 x 06 STC Dire
92. riority Flow Divider Specifications Rated Input Flow 96 6 l min 25 GPM Rated Pressure 172 4 bar 2500 PSI M ax Pressure Drop Through Valve at Rated Input Flow 4 5 bar 65 PSI Model 32501 Proportional Flow Divider Specifications Rated Input Flow 113 6 l min 30 GPM Rated Pressure 172 4 bar 2500 PSI M ax Pressure Drop Through Valve at Rated Input Flow 8 6 bar 125 PSI Model 32700 Variable Priority Flow Control Specifications Rated Input Flow 75 7 l min 20 GP M Rated Pressure 172 4 bar 2500 PSI M ax Pressure Drop Through Valve at 56 8 l min 15 GP M Input 4 0 bar 48 PSI Max Controlled Flow 36 0 l min 9 5 GPM Controlled Flow Adjustment Range 5 7 36 0 l min 1 5 9 5 GPM Relief Valve Factory Setting 151 7 bar 2200 PSI at 36 0 l min 9 5 GPM Comprehensive Flow Divider Description see Eaton Flow Divider Catalog E VLFL M COOT E Excess Controlled Flow Flow pr P _ Return ye Tv w Ke x Inlet Controlled Flow EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 87 Steering System Components Brake Valve Eaton Hydraulics load sensing brake valve makes power brakes an economical and efficient feature on lift trucks While power brakes in lift trucks can aid productivity incorporating them into lift tr
93. rs Ordering Information 1 Reference Part Number 5991006 001 Ports CF1 CF2 3 4 16 UNF L1 L2 R1 R2 3 4 16 UNF LS1 LS2 7 16 20 UNF Pressure Setting Range 100 600PSI 2 Specify Ports PSV10 10 Pressure Sequence Valves SPECIFICATIONS Pressure Rating for Aluminum block 210 bar 3000 PSI Ductile Iron block 241bar 3500 PSI Temperature Range 402 to 120 40 to 248 F Fluids All EE purpose hydraulic fluids such as MIL H 5606 SAE 10 etc Filtration Cleanliness code 18 16 13 Port Options Option 1 Option 2 Option 3 Option 4 Ports 8 Size 12 Size CF1 CF2 3 4 16 UNF M18 1 1 6 12UNF M27 L1 L2 R1 R2 3 16 UNF M18 7 8 18 UNF M22 LS1 LS2 7 16 20 UNF M12 7 16 20 UNF M12 3 Choose Pressure Setting Options Within the 7 40 bar 100 600 PSI range with a minimum increment of 3 45 bar 50PSI Options 7 bar 100 PSI 10 5 bar 150 PSI 40 bar 600 PSI 64 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components VLC In Line Priority Valves 60 I min 16 GPM Rate Flow 143 8 5 66 42 2 1 66 Inlet Relief Valve Qualified for 276 bar 4000 psi max Rated CF Pressure is 276 bar 4000 psi Rated Inlet and EF Pressure is 276 bar 4000 psi Tank B 56 0 2 21 7 EH i NI 100 3 3 95 f T Max 70 0 T 2 76 LS 38 4 1 51 Si 8 9 35 i m Sensing
94. s G 1 4 BSP LS Straight Thread Port on Side 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face 4 x G 1 2 BSP Straight Thread Ports G 1 4 BSP LS Straight Thread Port on Port Face 2 x M12 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face Dash 08 STC Ports None No Additional Port 2 x M10 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face Dash 08 STC Ports Dash 06 STC Port on Side 2 x M10 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face Dash 08 STC Ports Dash 06 STC Port Face 2 x M10 Mounting Threads Port Face 4 x M10 Mounting Threads Mounting Face Internal Involute Spline 12 Tooth 16 32 DP 30 PA Standard See Eaton Technical Bulletin 3 401 None Black Primer Eaton Product Number on Nameplate Assigned Design Code STC Aeroquip STC Hose Connector Dash 08 Port Face 4 Release Sleeve Dash 06 LS Port Side 1 STC Port STC with inlet check requires threaded adapter Contact your Eaton Account Representative for assistance 32 EATON Char Lynn Steering Catalog C STOV MCOO01 E1 J uly 2006 Housing Retaining Ring d Backup Washer O ring Patent numbers 5 553 895 5 226 682 5 570 910 Steering Control Units Series 10 Installation Drawing PORT AND MOUNTING THREAD COMBINATIONS
95. s offer the following benefits Faster steering response Improved cold weather start up performance Increased flexibility to Solve problems related to system performance and stability Dynamic Signal Open Center Pump r T 1 Sse gt EE mmm PUR Dynamic Signal Load 1 Sensing LFTIdERLT Dynamic Ld pu IR TI A E Signal LU WAG Steering i Hoy Control Unit i non load _ 1 reaction T ILS P High Pressure LS CF EF Carryover to i a 3 1 Auxiliary Circuit with TI l Open Center Valve s ema j i Priority Valve I Dynamic Signal SO ET Fixed Displacement Pump LL T Load sensi Load Sensing Steering System with Fixed Displacement Pump Open Center Circuit Dynamic Signal Load Sensing Pump Dynamic Signal I Load Sensing Dynamic Signal Steering Control Unit non load reaction m Auxiliary EF Circuit with Load Sensing Valve s Priority Valve Lu Dynamic Signal Compensa Shuttle Valve Pilot Signal O aaa aia from Auxiliary Circuit lt gt ES Pressure and Flow Compensated Pump UI Load Sensing Steering System with Pressure and Fl
96. satility to meet any steering circuit standard 12 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Valve Description 1 Anti cavitation check valve for cylinder ports R amp L protects steering circuit against vacuum cavitation conditions 2 Cylinder Port Relief Valves R amp L protects hoses against pressure surge created by ground forces on the steered axle 3 Manual Steering Check Valve converts unit to a hand operated pump for limited manual steering Included in all units except Series 20 25 and 40 4 Inlet Relief Valve limits maximum pressure drop across the steering unit protecting the steering circuit 5 Inlet Check Valve prevents oil from retuming through the steering unit when pressure on the cylinder side is greater than pressure on the inlet side to prevent steering wheel kick 6 LS Relief Valve Limits maximum pressure in the steering circuit LS units only Steering units with displacements larger than 185 cm3 r 11 3 in3 r may require a separate power source for limited operation Special Features and Application Manual Steering Description The steering control unit can provide steering flow when the pump or engine fails It will pump oil through the meter gerotor as the operator applies i
97. sition 4 5 SH Standard with flat flange No Tabs Position 9 10 11 026 66 1 2 60 Dimension X Dimension X see model code page 73 Position 9 10 11 J acket Length SJ Standard Wall Available on Square Series 5 Series 10 20 25 40 SH Standard Wall Available on Square Series 5 Series 10 20 25 40 H 6 4 25 Position 4 5 Le Dimension x Position 4 5 6 4 25 15 2 1 60 I Dimension X 40 6 23 6 93 1 6 44 32 20 3 80 40 6 Dia 1 745 1 6 44 32 5 771 227 Pilot Dia wm Dia 1 745 Pilot Dia Shaft End T 38 1 aft En 1 63 Dia Shaft End E ia Mounting Surface Mounting Surface Tab 4 HG Heavy Wall MN Available on Square Series 5 Series 10 20 25 40 Round Series 5 with End Ports Only 1 3 54 25 AA 25 Position 4 5 Position 4 5 Dimension x Dimension X 23 6 93 23 6 93 40 6 40 6 1 6 Da 5171221 1 6 1 73 571227 Dia Pilot Dia Dia Pilot Dia 38 38 Shaft End 1 49 Shaft End 1 49 Dia Dia M ounting Mounting f Surface 9 4137 Surface 9 4137 74 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Steering System Components Columns Lower End Type Example see model code page 73 Position 6 1 12 Tooth Spline for Steering Unit 1 Position 6 Column M ounting Column M ounting Column M ounting 6 4 25 Fla
98. tions Lawn and Garden Equipment e Turf Equipment Golf Course Maintenance Equipment e Lift Trucks Compact Utility Tractors 22 EATON Steering Catalog C STOV MCOOI E1 May 2006 Option 1 Square Housing with Side Ports refer to Model Code page 23 SPECIFICATIONS Max System Pressure Option 2 Round Housing with End Ports refer to M odel Code page 24 140 bar 2030 PSI Max Back Pressure 21 bar 300 PSI Max Flow 19 l min 5 GPM Max Differential Between Steering Unit 28 C and System Temperature 50 F Max System Operating Temperature 93 C 200 F Input Torque Powered Standard Low Max Non Powered 1 7 2 8 Nm 6 9 bar tank pressure 15 25 Ib in 100 PSI tank pressure 1 1 2 0 Nm 6 9 bar tank pressure 10 17 5 lb in 100 PSI tank pressure 814 Nm 60 Ib ft Fluid Petroleum Based Fluids Recommended Filtration 150 18 13 cleanliness level Port Options 9 16 18 SAE O ring 06 STC 3 8 BSP Straight thread ports Check Valve for M anual Steering Yes Optional Relief Valve Settings bar PSI 40 580 50 725 63 914 70 1015 80 1160 90 1305 100 1450 125 1812 Steering Control Units Series 5 Model Code Ordering Information Square Housing with Side Ports Option 1 The following 30 digit coding system has been developed to identify all of the configuration options for the Series 5 stee
99. tly improve the operator s comfort as well as the vehicle s performance Use theTorque Generator as rotary power assist for Large indexing tables Manually operated gates and valves Manual positioning devices Mechanical steering systems Tumtables Customized Steering Columns STEERING COLUMNS 204 XXXX XXX Char Lynn columns can be custom built to your J acket Length 56 836 mm 22 33 inch exact specifications The column and mounting Horn Wire with and without with and without flange is of a sturdy single weldment design These Upper Ends 10 Upper End Types 10 Upper End Types columns have high thrust and side load capacity with low shaft torsional friction A tilt column is also available EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Hydraulic Circuit Explanation Neutral Circuits Open Center and Open Center Power Beyond Open Center Simplest most economical system Uses a fixed displacement pump In neutral position pump and tank are connected Most suitable on smaller type vehicles Open Center Power Beyond The power beyond steering control unit supplies steering and auxiliary valve functions The power beyond unit is used on medium pressure open center fixed displacement pump systems When not steering the power beyond unit directs all inlet flow to the auxiliary circuit However once steering is initiated part of the auxiliary flow is diverted to steering
100. ucks has traditionally been expensive The need for additional flow meant extra plumbing plus the addition of a dedicated pump or a high pressure accumulator for the brake circuit The increased system size also meant extra demand on the engine resulting in reduced fuel economy The Eaton brake valve provides a better solution Used in conjunction with load sense steering and a priority valve it can work with an existing system A dedicated flow source is not required It also ensures that brakes and steering have priority over the hoist circuit Eaton s new brake valve has a shuttle in the sensing port which allows the priority valve to determine whether brakes or steering require higher pressure The priority valve then shifts to provide adequate flow and pressure for the function with the greatest needs An integral pressure compensated flow limiter provides low flow for brake modulation This feature of the brake valve allows simultaneous braking and steering without steering interruption or pedal kick 88 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 The design of the circuit also increases efficiency The control flow line of the circuit is connected in parallel to both the brake valve and the steering unit Thus brake and steering pressures are not additive during simultaneous operation The existing steering pressure is usually enough to provide full power braking Another feature
101. uid Type A 24 Special Application Options V 25 26 Special Features AA 27 Paints and Packaging 1 28 Identification 0 29 Eaton Assigned E Design Code EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Code Description Low Standard Includes Stiffer Springs See Eaton Technical Bulletin 3 401 Wide Angle Deflection Versa Steer Wide Angle None Black Paint Eaton Product Number on Nameplate Assigned Design Code 39 Steering Control Units Series 20 Installation Drawing E f See Catalog 11 872 L A8 for Column Details I B 9 7 38 Min 4 8 19 Min 8 4 33 Max 3 68 3 43 145 135 M E 19 6 77 25 7 1 01 M ax L LIH d Mm 44 40 1 748 12 Tooth Involute Spline 58 37 16 32 D P 30 P A 553 2 298 13 58 535 Deep 3 02 C disi Load Sensing Port 2 29 18 M 10 x 1 5 6H M ounting 48 13 16 2 60 4 Surface 1 895 r 26 16 1 030 Left Right po 107 4 4 23 M ax 3 90 9 3 58 M ax 98 3 3 87 M ax Pressure Inlet Check Valve with Q Amp Option Displ A B cm3 r in3 r mm in mm in 48 51 1 910 2 51 60 3 6 6 1 24 143 3 5 64 33 40 1 315 M ax 75 4 5 7 91 31 145 0 5 71 95 5 9 10 2 40 147 3 5 80 120 7 3 12 7 50
102. up to 1055 RPM Torque Continuous 440 Nm 3905 Ib in Intermittent 510 Nm 4515 Ib in 11 Displacements 36 cm3 r 2 2 in3 r to 370 cm3 r 22 6 in3 r ComprehensiveT Series Motor Description See CharLynn General Purpose Motors H S T Series Catalog E M OLO M COO1 E2 Steering control unit displacement determines turns lock to lock for a given motor displacement Hydraulic Reservoir lines switch lines to reverse steering Motor Electric Propel Motor Steered Wheel Gear or Chain Drive Geroler steering motor displacement determines working pressure for required torque EATON Char Lynn Steering Catalog C STOV MCOOIL E1 J uly 2006 89 Sizing and Application Ackermann Type Steering Step One Kingpin Torque F Minimum Effective Radius Arm V 0 2 0 4 0 6 0 8 10 12 E B Typical values based on rubber tired vehicles on dry concrete L BE 2 T wef V 8 E T Total Kingpin Torque required to steer axle W Vehicle Weight supported by the steered axle f Coefficient of friction dimensionless Based on 0 7 as a M aximum Determine from chart at left B Nominal width of the tire print see diagram above E Kingpin Eccentric use nominal tire width Radius Arm 90 EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 Sizing and Application Ackermann Type Steering Continued Step Two Force Required I
103. wered 10 25 lb in 100 PSI back pressure 136 Nm 100 Ib ft Fluid See Eaton Technical Bulletin 3 401 Recommended Filtration ISO 18 13 cleanliness level PORT SIZES Work Ports 4 Load Sense LS Port 1 3 4 16 SAE 7 16 20 M18 x 15 6H M12x 1 5 6H G 1 2 BSP Straight Thread G 1 4 BSP Straight Thread STC Dash 08 STC Dash 06 Top or side when applicable STC Ports Aeroquip patented feature snap to connect technology EATON Steering Catalog C STOV MCOOI E1 May 2006 29 Steering Control Units Series 10 Model Code Ordering Information The following 32 digit coding system has been developed to identify all of the configuration options for the Series 10 steering control units Use this model code to specify a unit with the desired features All 32 digits of the code must be present when ordering You may want to photocopy the matrix below to ensure that each number is entered in the correct box T 2 39 4 b 8 7 8 9 10 tJ 12 13 M 15 17 18 19 20 211 22 23 24 25 26 27 28 29 30 31 32 alol E TL EE TL T ELT TL EL IL TL BL TE Tal fala alala iola Nos Feature Code Description Nos Feature Code Description 1 2 3 Product Series ADR Series 10 Steering Control 10 Flow Amplification A None No O Amp Unit B 1 6 1 0 Ratiot 4 Unit Type A Standard C 1 6 1 0 Ratio B Dual Displacement with Manual Steering t C Wide Angle E 2 0 1 0 Ratio D 2 Speed
104. y 78 Displacement 62 490 30 NBDN 4 xM27 with M12 LS and cm3 r in3 r 65 625 38 M12 PP Capped M 10 Mounting 67 7 48 Threads Use with Load Sensing 69 985 60 Units Only 71 1230 75 NAAN 4x M27 with M10 Mounting 9 Flow 0 None Threads Amplification 1 16 10 Ratio 10 Neutral Circuit A Open Center ER 3 Standard C Closed Center ER D Closed Center with Neutral Bleed Fluid Type A See Eaton Technical Bulletin 3 401 F Load Sensing Dynamic Signal Special 0 None 11 Load Circuit A Non Load Reaction Applications 1 Wide Angle Use with Load D Non Load Reaction Cylinder Damping Sensing Units Only Be Flow Amp and Wide Angle Special Features AA None 12 13 Valve Options 00 None Paint 1 Black Paint 02 Anti Cavitation Valve Identification 0 Eaton Product Number on 21 Anti Cavitation Valve Cylinder Nameplate Relief Valves A Eaton A D A d D C 14 15 Load Sense 00 None Ch um EE Relief Valve Setting 16 17 Cylinder Relief 00 None Valve Setting 6F 207 bar 3000 PSI Cylinder Relief Setting 70 recommendation is 870 7H PSI 60 bar above 83 steering inlet load sense pressure 224 bar 3250 PSI 241 bar 3500 PSI 259 bar 3760 PSI 276 bar 4000 PSI 293 bar 4250 PSI EATON Char Lynn Steering Catalog C STOV MCOOI E1 J uly 2006 45 Steering Control Units Series 25 Installation Drawing 63 5 2 5 3 63 1 85 143 073 Right 8 8 35 Min 108 8 4 28 Dia Max 134 2 5 28 M ax 44 4

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