620 Mobile Open Circuit Piston Pump Service Manual
Contents
1. Q gt nn D 99 e ae oO 2 ae 620 Mobile Open Circuit TN Worldwide A mz Powering Business EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Table of Contents Table of Contents Service Parts Parts Identification Exploded Assembly Optional Assembly Typical Cross Section Shaft Drive and Key End Cover S A Valve Plate Housing Rotating Group Swashplate and Shaft Seal Compensator and Compensator Mounting Screws Cold Start Manifold Destroke and Plugs Adapter Kit and Coupler Cover Hex Head Cap Screw and Bearing Assembly O 101 IR 1 IN i gt IO lo o IN IO IG IR EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Repair 620 Mobile Piston Pump Repair 17 General Information 18 Required Tools 18 Special Tools 18 Disassembly 19 Inspection Repair and Part Replacement 24 Shimming Process 26 Assembly 27 Testing 31 Assembly Torque Values 32 3 Part Identification 620 Series Pumps Item Part Number Quantity Description Page Number 1 See table 4 Housing 11 2 See table 7 Seal Shaft N 12 3 101680 225 Ring Retaining Internal Shaft Seal I 5 4 6021802. Locator Tool Note The swashplate locator tool and hold down plug will prevent the swashplate from moving This step is designed to force the swashplate to a neutral position to enable easy removal of the rotating group while retaining the swashplate With the locator tool in place tighten the adjustment screw so that control piston is compressed part with great care mark ing as necessary to ensure proper reassembly The close tolerance of the parts make this requirement very impor tant Clean all the parts that are removed from the unit with a commercial solvent 3 Remove Compensator that is compatible with the system fluid Compressed air may be used in the cleaning process However it may be filtered to remove water and other contaminants Note The valve plate may stick to end cover Use caution so that valve plate does not fall off Mark the housing and end cover to ensure the correct orientation Remove the four cap screws that hold the end cover in place 5 Remove Valveplate from End Cover EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 19 Disassembly 6 Remove Bearing Race from End Cover 8 Remove Bearing from Shaft 7 Remove Crush Ring if required 9 Remove Gasket Note The Crush Ring located under the bearing cup in the end cover does not need to be removed The only tim
3. m Adjustable Maximum Stop Option EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Typical Cross Section 620 Series Pumps Side View EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Shaft Drive and Key Items 9 amp 10 Table 1 Table 1 Shaft Drive and Key Items 9 amp 10 Code Position 4 5 6 3 9 24 25 Key Item 10 Part Number Description 074 05 00 4992730 004 6025210 001 Shaft Drive 1 25 Straight Key 56 Ext 074 05 not 00 4992730 004 6025210 003 Shaft Drive 1 25 Straight Key 56 Ext Thru Drive 074 06 00 6025208 001 Shaft Drive Input 14 Tooth 56 Ext 074 06 not 00 6025208 003 Shaft Drive Input 14 Tooth 56 Ext Thru Drive 074 07 00 4992730 005 6025211 001 Shaft Drive 1 50 Straight Key 62 Ext 074 07 not 00 4992730 005 6025211 003 Shaft Drive 1 50 Straight Key 62 Ext Thru Drive 074 08 00 6025209 001 Shaft Drive Input 17 Tooth 62 Ext 074 08 not 00 6025209 003 Shaft Drive Input 17 Tooth 62 Ext Thru Drive 098 05 00 4992730 004 4999808 001 Shaft Drive 1 25 Straight Key 56 Ext 098 05 not 00 4992730 004 4999809 001 Shaft Drive 1 25 Straight Key 56 Ext Thru Drive 098 06 00 6021804 001 Shaft Drive Input 14 Tooth 56 Ext 0
4. questionable replace the entire rotating group Remove the pistons shoe retainer and pivot from piston block The piston block assembly does not need to be disassembled unless the internal pins or springs are damaged Check each cylinder block bore for excessive wear Use the piston and shoe S A for this purpose The pistons should be a very close fit and slide in and out of the cylinder block bores No binding can be tolerated If binding occurs clean the cylinder block and pistons Lubricate the cylinder block bores with clean oil and try again Even minor contamination of the fluid may cause a piston to freeze up in a cylinder bore Inspect each of the nine piston and shoe subassemblies for maximum end play of 0 08 mm between the piston and shoe Inspect shoe retainer and pivot for wear and or scratches If condition is questionable replace entire rotating group Piston S A Tolerances This dimension must be 24 maintained on all nine shoes within 0 03 mm Shoe face rides on swash plate Shoe must swivel smoothly on ball Before Inspection of parts clean with a solvent that is compatible with system fluid Retainer Plate Piston Piston Block D Pivot Note Do not lap the face of cylinder block assembly l 0 03mm Between Piston Shoes 9 Piston Poa FA Movement up to 0 08mm EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUP
5. 01 End Cover S A Thru Drive 98 cc Diag ports 098 L R AD 1 00 6023848 002 End Cover S A Side Port 98 cc Metric Diag Ports 098 L R AD i not 00 6023824 002 End Cover S A Thru Drive 98 cc Metric Diag Ports 098 L R AB 0 00 6023848 003 End Cover S A Side Port 98 cc 098 L R AB 0 not 00 6023824 003 End Cover S A Thru Drive 98 cc 098 L R AD 0 00 6023848 004 End Cover S A Side Port 98 cc Metric 098 L R AD 0 not 00 6023824 004 End Cover S A Thru Drive 98 cc Metric 620 Series Mobile Piston Pump End Cover Views Side Ported Thru Drive EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 9 Valve Plate Item 12 Table 3 Table 3 Valve Plate Item 12 Code Position 4 5 6 7 Part Number Description 074 R 6029369 001 Plate Valve RH 74 cc 074 IL 6029369 002 Plate Valve LH 74 cc 098 R 6024330 001 Plate Valve RH 98 cc 098 IL 6025319 001 Plate Valve LH 98 cc Valve Plate Identification Cn Nf VAN 10 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Housing Item 1 Table 4 Table 4 Housing Table Item 1 Code Position 89 12 26 27 28 Part Number Description 05 06 07 08 10 1 2 1 00 6023256 001 Housing 05 06 07 08 10 3 4 1 00 6023256 002 Housing Metric Drain Port 05 06 07 08 10 1 2 1 AB 6022838 001 Housing Feedback Sensor 05 06 07 08 10 3 4 i AB 6022838 002 Housing Feedback Se
6. 01 Magnet Carrier 33 40 602437 1 002 Feedback Sensor Non Contact 83 41 5996053 002 Screw Button Head Cap Sensor Mount 33 45 4993571 325 Adjustable Stop Screw A 6 46 692867 Lock Nut A 6 47 115044 014 O Ring A 6 48 See table 15 Cover 16 49 See table 16 Hex Head Cap Screw 16 50 6026587 001 Cover Plate Sealing Cover Plate Kit 9900782 000 32 51 6026902 001 Gasket Cover Plate Cover Plate Kit 9900782 000 82 52 114977 020 Screw Cap Cover Plate Kit 9900782 000 32 E Standard Seal Kit 9900758 000 A Adjustable Maximum Displacement Volume Stop Kit 9900772 000 4 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Exploded Assembly 620 Series Pumps Part Item Number 2X After Adjusting Compensator to Correct Pressure Torque Jam Nut to 6 8 Ibf ft Then Install Tamper Proof Cap Tamper Proof Cap Pa Top of Pump d 8 D a 2 4 6 Assemble with Longer g je eile Toward di ERS Press to Bottom of End Cover Pocket Steel Side of Valve Plate Must Face End Cover EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Optional Assembly 620 Series Pumps Part Item Number o 5 O t a o 2 Lu a gt i f F 115 12 N m Lu 2 cc oO F 30 5 4 N m TORQUE 2742 7 Nm TORQUE 45 46 TORQUE 161 16 0 N
7. 2012 Eaton Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax 41 0 21 811 4601 Eaton Hydraulics Group Asia Pacific Eaton Building No 7 Lane 280 Linhong Road Changning District Shanghai 200335 China Tel 86 21 5200 0099 Fax 86 21 2230 7240
8. 5 001 Bearing Assembly Shaft Front 5 5 5989757 001 Spring Bias 5 6 6021043 001 Bearing Swashplate Bearing Kit 9900761 000 5 7 114995 010 Screw Cap Socket Bearing Kit 9900761 000 5 8 See table 6 Swashplate 12 9 See table 1 Shaft Drive 8 See table 1 Key Driveshaft 8 11 See table 5 Rotating Group S A 11 12 See table 3 Valve Plate 10 13 See table 17 Bearing Assembly Shaft Rear 5 14 Not Saleable Ring Crush Bearing Shim Kit 9900776 000 5 15 96201 062 Slotted Spring Pin 1 4 5 16 6026023 001 Gasket Endcover Housing I 5 17 See table 2 End Cover S A 9 18 114978 050 Screw Cap Housing Endcover 5 19 6023317 001 Piston Control 5 20 See table 12 Plug Adjustable Volume Stop A 14 21 See table 11 Plug Top Case Drain Port 14 22 See table 11 Plug Bottom Case Drain Port 14 23 115046 004 Plug Housing 5 24 107275 017 O Ring Compensator Housing I 5 25 107275 011 O Ring Secondary Compensator Housing I 5 26 See table 8 Compensator Kit 13 27 See table 9 Screw Cap Compensator Mounting 3 28 See table 14 Coupler 5 29 104 166 155 O Ring Endcover To Aux Mount W Thru Drive adapter Kit 6 30 See table 13 Adapter Thru Drive Thru Drive Adapter Kit 15 31 See table 13 O Ring Adapter M Thru Drive Adapter kit 5 32 See table 13 Bolts Thru Drive Adapter kit 15 33 See table 10 Cold Start Manifold Destroke 4 34 107275 011 O Ring Destroke 4 35 6022841 001 Link Feedback 33 36 114995 010 Screw Cap Socket Flat Countersunk 33 37 5990203 0
9. 98 06 not 00 4999303 001 Shaft Drive Input 14 Tooth 56 Ext Thru Drive 098 07 00 4992730 005 4999810 001 Shaft Drive 1 50 Straight Key 62 Ext 098 07 not 00 4992730 005 4999811 001 Shaft Drive 1 50 Straight Key 62 Ext Thru Drive 098 08 00 4999806 001 Shaft Drive Input 17 Tooth 62 Ext 098 08 not 00 4999807 001 Shaft Drive Input 17 Tooth 62 Ext Thru Drive 098 10 not 00 14392 004 6023400 001 Shaft Drive 1 25 Tapered Str Key Thru Drive 620 Series Mobile Piston Pump Drive Shaft EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 End Cover S A Item 17 Table 2 Table 2 End Cover S A Item 17 Code Position 4 5 6 7 10 11 13 24 25 Part Number Description 074 L R AF 1 00 6028767 001 End Cover S A Side Port 74 cc Diag Ports 074 L R AF 1 not 00 6030266 001 End Cover S A Thru Drive 74 cc Diag Ports 074 L R AH 1 00 6028767 002 End Cover S A Side Port 74 cc Metric Diag Ports 074 L R AH 1 not 00 6030266 002 End Cover S A Thru Drive 74 ce Metric Diag Ports 074 L R AF 0 00 6028767 003 End Cover S A Side Port 74 cc 074 ER AF 0 not 00 6030266 003 End Cover S A Thru Drive 74 cc 074 L R AH 0 00 6028767 004 End Cover S A Side Port 74 cc Metric 074 L R AH 0 not 00 6030266 004 End Cover S A Thru Drive 74 cc Metric 098 L R AB 1 00 6023848 001 End Cover S A Side Port 98 cc Diag Ports 098 L R AB 1 not 00 6023824 0
10. Code position 24 25 27 28 Part Number Qty Description AA AB AA 16136 607 2 Hex Head Cap Screw AC AD AA 16136 812 2 Hex Head Cap Screw Bearing Assembly ltem 13 Table 17 Table 17 Bearing Assembly item 13 Code position 24 25 Part Number Description 074 6025207 001 Bearing Assembly 74 cc 098 6021946 001 Bearing Assembly 98 cc 16 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 620 Mobile Piston Pump Repair c 2 n gt General Information Ordering Replacement Parts Replacement Parts When ordering replacement parts give the product number date code part number and quantity of parts required This product information is found on name tag which is located on the side of the housing E TN Assembled in Mexico Powering Business Worldwide L XXXXXXXXXXXXXXAXXXXXAAXAXXXXK x When Eaton Model 620 pressure pressure flow compensated piston pump is repaired thoroughly clean pump before any repairs are attempted The part number and serial number are on the tag Eaton product number or customer number AN Mn Ill Serial number date code Complete model code or m model code up to rotation if requested no bar code Parts list revision level Required Tools Standard Tools for Disassembly e Ball Pin Hammer e Plastic Tip Hammer e Flat Tip Screw Driver e Snap Ring Pliers e Torque wrench e Magnet
11. Description 074 098 AA AB 9900774 002 104166 155 4999463 001 8761 152 114977 030 SAE A Pad Adapter 13T 74 98cc 074 AD 9900774 005 104166 155 4999351 001 8761 155 114977 050 SAE B Pad Adapter 15T 74 cc 074 AE AF 9900774 004 104166 155 4999353 001 8761 159 114977 055 SAE C PAD Adapter 74 cc 098 AC AD 9900774 003 104166 155 4999351 001 8761 155 114977 030 SAE B Pad Adapter 98 cc 098 AE AF 9900774 001 104166 155 4999353 001 8761 159 114977 035 SAE C Pad Adapter 98 cc Coupler Item 28 Table 14 Table 14 Coupler Item 28 Code position 4 5 6 24 25 Part Number Description 074 AA 6028263 001 Coupler 9 Tooth 074 AB 6028263 002 Coupler 11 Tooth 074 AC 6028263 003 Coupler 13 Tooth 074 AD 6028263 004 Coupler 15 Tooth 074 AE 6028263 005 Coupler 14 Tooth 074 AF 6028263 006 Coupler 17 Tooth 098 AA 4999426 001 Coupler 9 Tooth 098 AB 4999427 001 Coupler 11 Tooth 098 AC 6024980 001 Coupler 13 Tooth 098 AD 6024112 001 Coupler 15 Tooth 098 AE 864458 Coupler 14 Tooth 098 AF 864461 Coupler 17 Tooth EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 15 Cover Item 48 Table 15 Table 15 Cover Item 48 Code position 24 25 27 28 Part Number Description AA AB AA 70142 600 Cover A Pad AC AD AA 110011 000 Cover B Pad Hex Head Cap Screw Item 49 Table 16 and 17 Table 16 Hex Head Cap Screw Item 49
12. I TS018 E1 November 2012 Le Inspection Repair and Part Replacement End Cover amp 1 Inspect end cover for erosion cracks and Associated Parts burrs Clean up minor burrs with an India stone If erosion or cracks are found replace the end cover 3 Inspect valve plate for erosion excessive wear heavy scratches and cracks If any of the above conditions are found replace the valve plate Swashplate Parts 1 Inspect swashplate face for wear rough ness or scoring Check the swashplate hubs and bearing surfaces for wear and cracks Replace if defective Shaft Housing Parts 1 Inspect drive shaft for wear stripped splines and burrs Remove burrs with India stone Inspect the contact of the area bearing and shaft seal Replace the drive shaft if wear or scoring is greater than 0127mm T I R Total Indicator Reading 3 Inspect housing mounting flange for nicks and burrs Remove minor nicks and burrs with an India stone Also check the hous ing for damaged or stripped threads If any thread is damaged replace the housing EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 2 Inspect roller bearing and bearing race for nicks and pitting Make sure the roller bear ing turns freely within the bearing race If the roller bearing needs replacement both the roller bearing and the bearing race must be replaced 4 Inspect control piston and maximum dis placement screw for burrs
13. QUE Pressure Flow Compensator 8 2 0 8 N m ONA HUHN ha Tamper Proof Cap Dahl Compensator Mounting Screws Item 27 Table 9 Table 9 Compensator Mounting Screws Item 27 Code Position 21 22 Part Number Description 00 0A 114953 030 Screw Cap Compensator Mounting 0B 0C 114953 065 Screw Cap Compensator Mounting EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Cold Start Manifold Destroke Item 33 Table 10 Table 10 Cold Start Manifold Destroke Item 33 Code Position 21 22 Part Number Description OD 631AA00035A 001 Destroke Manifold with Metri Pack Connector OE 631AA00035A 003 Destroke Manifold With Integrated Deutsch Connector Plugs Items 20 21 amp 22 Table 11 amp 12 Table 11 Case Drain Plugs Item 21 22 Code Position 12 Part Number Description 1 115046 016 Plug 1 3125 12 2 115046 016 Plug 1 3125 12 3 9237 006 Plug M33 X 2 0 4 9237 006 Plug M33 X 2 0 Table 12 Plug Adjustable Volume Stop Item 20 Code Position 23 Part Number Description 1 5994111 001 Plug Assembly 2 6024779 001 Plug 14 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Adapter Kit Items 29 30 31 amp 32 Table 13 Table 13 Adapter Kit Thru Drive Item 29 30 31 and 32 Code Position 4 5 6 24 25 Part Number Item 29 Item 30 Item 31 Item 32
14. Stick e 11 16 Wrench e 1 3 8 Wrench e 4mm Allen Wrench e 3 32 Allen Wrench e Impact Screwdriver e Sliding Bearing Remover Hammer e Dial Indicator and Accessories e Marker or Paint Pen e Petroleum Jelly e Cleaning Solvent Read this assembly manual thoroughly before starting work on the pump This manual assumes appropriately trained technicians with specialized knowledge of mechanical and hydraulic compo nent assembly and disassembly Serial Number Date Code Interpretation 08 02 17 RC 1010 seria Number Number M Month Manufacturing Plant Reynosa MX __ Year Built Day of Month Ot Special Tools e Assembly Tool Kit for 620 Pump 9900773 000 e Swashplate Locator Tool Kit 9900773 001 e Swashplate Hold Down Plug 4999331 001 18 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Before attempting to disas semble clean the pump exte rior Dispose of leakage oil and oily cloths in an environ mentally responsible manner All parts within the unit must be kept clean during the over haul process Handle each Disassembly 1 Remove Control Piston Plug Assembly and Install Swashplate Locator Tool 2 Install Swashplate Hold Down Plug and Adjust the Swashplate
15. achieve proper bearing set If no EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 movement of the shaft is observed shims will needs to be removed and steps 3 amp 4 be repeated 5 Finish the assembly of the pump Assembl Assembly must be conducted in a clean to the specified torque Exceptions are y environment Dispose of leakage oil and specified in the text Lubricate O rings and oily cloths in an environmentally responsible shaft sealing rings lightly with an acid free manner Before assembly carefully clean lubricant and to hold the O ring in place in its all the parts and blow out holes with groove or cavity compressed air Tighten all the screw plugs 1 Install Snap Ring and Shaft seal Note Press shaft seal inside till the face of the seal exactly matches with inner surface of retaining ring groove 2 Insert the Shaft Bearing Race 3 Install Cradle Bearings Note The cradle bearings are asymmetrical Install with longer side towards the top of the pump controller side 4 Install Cradle Bearing Screws Note The old cap screws can not be reused and must be replaced with new ones because the screws will be damaged during disassem bly The new cap screw threads will be coated with loctite EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 27 Assembly 5 Inst
16. all Bearing 8 Install Swashplate Hold Down Plug _ us CO 6 Install Bias Spring 9 Install Control Piston IP i OO 7 Install Swashplate fh Note With the Bias Spring in place tilt the swashplate toward the spring and install the swashplate Ensure that Bias Spring is engaged 28 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Assembly 10 Install Swashplate Locator Tool and Adjust 12 Install the Rotating Group Note Install Swashplate Locator Tool 9900773 001 Note Carefully install Rotating Group Ensure and adjust the screw until the swashplate is near neutral shaft is engaged with bearing race while installing will look flat in housing Rotating Group 11 Install Shaft 13 Install Bearing Race Note Install shims if required and the bear ing race to ensure correct number of shims are used to get the correct end play Shim installation Caution Use care while inserting shaft end instructions are on page 26 through shaft seal EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 29 Assembly 14 Install Valve Plate Note Lightly coat the steel side of the valve plate with petroleum jelly for retention during assembly Install the valveplate over the bearing race aligning the small sl
17. e the crush ring needs to be removed is when the front or rear shaft tapered roller bearings bearing cups drive shaft end cover or housing assembly is replaced A shim kit is required if the crush ring is replaced 20 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Disassembly 10 Remove Rotating Group 12 Remove Swash Locator Note Carefully remove the rotating group 11 Remove Shaft 13 Remove Control Piston Note The open end of the control piston is positioned up The control piston is allowed to rotate EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 21 Disassembly 14 Remove Swashplate Hold Down Plug 17 Remove Bearing 16 Remove Bias Spring Caution Socket head cap screws are easily damaged during repair with improper tool 22 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Disassembly 19 Remove Cradle Bearings 21 Remove Snap Ring Shaft Seal and Discard 20 Remove Front Bearing Race EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 23 Inspection Repair and Part Replacement Inspection Rotating Group Parts 1 Inspect cylinder block face for wear scratches and or erosion If cylinder block condition is
18. justable Maximum Stop Option 20 TORQUE a7 161 16 0 N m 46 Ep TORQUE 2742 7 Nm __ TORQUE u 30 5 4 N m af oo _ TORQUE 115 12 N m 32 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Assembly Torque Values Instructions Feedback Sensor Option Cold Start Manifold Destroke 8 N m T 8 2 ORQUE TORQUE 3 0 0 2 N m 36 TORQUE 4 0 0 4 N m 33 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Assembly Torque Values Instructions End Cover 3 TORQUE 15 0 1 5 N m ge eee ey a Ss pa INSTALL SEAT FLUSHED TO 25 RECESSED a PRESS TO BOTTOM lt DERRI Ow gt TORQUE AZIS WITHIN 5 2 945425 Nm ae TORQUE 2 TORQUE 3 15 021 5 Num 24 5 2 5 N m 34 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 35 E T N Powering Business Worldwide Eaton Hydraulics Business USA 14615 Lone Oak Road Eden Prairie MN 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics 2012 Eaton Corporation All Rights Reserved Printed in USA Document No E PUPI TS018 E1 November
19. nsor Metric Drain Port Rotating Group Item 11 Table 5 Table 5 Rotating Group Item 11 Code Position 4 5 6 27 28 Part Number Description 074 00 AA AB 6029085 001 Rotating Group S A 74 cc 098 00 AA AB 6021400 001 Rotating Group S A 98 cc EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 11 Swashplate Item 8 Table 6 Table 6 Swashplate Item 8 Code Position 27 28 Part Number Description not AB 6022840 002 Swashplate AB 6022840 001 Swashplate Feedback Sensor Shaft Seal Item 2 Table 7 Table 7 Shaft Seal Item 2 Code Position 26 Part Number Description 1 3 589332 Seal Shaft Fluorocarbon 12 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Compensator Items 24 25 26 amp 27 Table 8 Table 8 Compensator Items 24 25 26 and 27 Code Position 14 15 16 Pressure Limit Setting 17 18 Flow Setting 21 22 Part Number A 28 276 284 Bar 4003 4119 Ibf in 20 19 21 Bar 276 305 Ibf in 00 9900771 002 A 20 196 204 Bar 2843 2959 Ibf in 20 19 21 Bar 276 305 Ibf in 00 9900771 003 A 28 276 284 Bar 4003 4119 Ibf in 14 13 15 Bar 189 218 Ibf in2 00 9900771 004 A 20 196 204 Bar 2843 2959 Ibf in 14 13 15 Bar 189 218 Ibf in 00 9900771 005 C 28 276 284 Bar 4003 4119 Ibf in 00 00 9900771 006 C 20 196 204 Bar 2843 2959 Ibf in 00 00 9900771 007 AX TOR
20. ot on the outside of the valveplate with the dowel pin in the End Cover 15 Install Gasket and Bearing Note After Installation of Bearing lubricate all components with clean hydraulic oil 30 EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Assembly 16 Install End Cover and Cap Sleeve Note Ensure correct orientation Use caution so that valve plate does not fall off 17 Install Compensator 18 Remove Swash plate Locator Tool and Hold Down Plug Install Control Piston Plug Assembly 19 Testing Perform functional test on pump according to Eaton test procedure Contact your area sales manager for more information EATON 620 Mobile Open Circuit Piston Pump Service Manual E PUPI TS018 E1 November 2012 Assembly Torque Values Instructions 2X After Adjusting Compensator to Correct Pressure Torque Jam Nut to 6 8 Ibf ft Then Install Tamper Proof Cap 4X TORQUE 115 12 N m Tamper Proof Cap 4X TORQUE lt 8 2 0 8 N m SY TORQUE 118 512 N m yl we 2X TORQUE ye a 2 a 4 0 0 4 N m 7 TORQUE q P 2 Assemble with Longer 7 135 13 5 N m T d S Segment Toward Cee D D Top of Pump a D 0 AX TORQUE TORQUE K a gt 286 29 N m 15 5 0 5 N m TORQUE PA 135 13 5 N m Press to Bottom of End Cover Pocket Steel Side of Valve Plate Must Face End Cover Ad
21. scratches and cracks If any of the above conditions are found replace the control piston The con trol piston should move freely in the bore 2 Inspect saddle bearing surfaces for wear pitting and smooth operation Replace if necessary 2 Inspect drive shaft bearing for roughness pitting of rollers and excessive end play Replace if defective If the bearing needs to be replaced the bearing race also requires replacement 4 Check remaining pump parts for excessive wear damaged threads burrs cracks and erosion Replace any part that is in ques tionable condition 25 Shimming Process Kit 9900776 000 Shimming Process Installation Information This shim kit is to replace the crush ring within the pump end cover If the housing drive shaft shaft bearings or end cover is replaced during servicing the original can no longer be used to assure proper bear ing set Shimming Procedures 1 N 26 Measure the thickness of the existing crush ring To obtain a starting point stack shims to a few thousandth of an inch less than the measurement of existing crush ring Then insert shims in to the housing in the same location as the removed crush ring Assemble the housing shaft bearings shaft and end cover Install the end cover cap screws and torque to 384 28 N m Using a dial indicator measure drive shaft end play Target bearing set is 03 to 08mm clearance Add shims to
Download Pdf Manuals
Related Search