Graco Thrif-T Luber Low-Pressure Orifice Lubrication System User's Manual
Contents
1. high INLET 1 8 NPSF OUTLET 1 8 NPSF N aan Figure 21 i kee zl Be he 72227 Seen TT EN il Figure 18 Page 8 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 THRIF T LUBER ACCESSORIES amp HARDWARE CONT D Tee Fitting For use with two 4 mm 5 32 in tube outlets and Compression Sleeve For 4 mm 5 32 in tubing Note Can be 1 8 in pipe Measures 28 4 x 25 4 x 15 9 mm 1 12 x 1 00 x 0 62 used with inverted nut or bearing fitting inches Figure 26 Figure 22 Inverted Nut Brass tube nut to attach 4 mm 5 32 in tube to Closure Plug Has 7 9 mm 5 16 in UNF 2A full thread to within manifold 1 6 mm 0 06 in of hex head Note Used to plug unwanted manifold ports Figure 27 Figure 23 THRIF T LUBER ACCESSORIES amp HARDWARE Description Part No Old Part No Pressure Gauge TLPG 00 493 020 199 Figure 23 Wegener Compression Nut Brass tube nut for bearing fitting with 5 16 24 thread for 4 mm 5 32 in tubing Bearing Fitting Used in 1 8 NPT bearing tap or manifold to at tach 4 mm 5 32 in tubing 4 8 NPTF 5 16 UNF 2A Figure 25 Page 9 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 System Design amp Component Selection STEP FIVE Determine system flow value 2 e Multiply each flow value from column 9 by number of taps in Guide to System Design amp Component Selection icum E E E do for low pressure orifice type lubrication e2. directly at the bearing point and used in conjunction with a Tee head to provide for two or more tube connections Figure 15 5 16 24 UNF 2A 5 16 24 UNF 2A 24 61 969 lt Ae EES LWG LAU M ER AW OIL FLOW 11 13 lt 438 gt 1 8 27 NPTF 1 8 27 NPTF 24 21 953 SN OOS A LA uuu NV LS OIL FLOW S umm tiu SS Page 7 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 THRIF T LUBER ACCESSORIES amp HARDWARE Pressure Gauge for use with Thrif T Luber Electric Pump has Nylon Tube Has 4 mm 5 32 in O D and is burst rated at 69 plastic case with 50 8 mm 2 in diameter dial and 0 to 21 bar 0 bar 1000 psi Comes in 7 62 m 25 ft coiled lengths to 300 psi range Has 1 4 18 NPTF center back mount Figure 16 Figure 19 Tube Clips Standard clips for 1 2 3 or 4 tubes are plated steel Manifold Bars Have tapped 5 16 in holes for 4 mm 5 32 in Four sizes tubing connections Four sizes 5 WAY SHOWN Figure 17 Figure 20 In Line Filter Helps keep contaminants that get past the pump s Anchor Block Con also serve as a two way manifold bar with 4 screen strainer from clogging orifice filters Comes complete with mm 5 32 in tube connection to 1 8 in female pipe Measures filter body 25 micron filter element gaskets and closure plug 28 4 x 15 9 x 25 4 mm 1 19 x 0 62 x 1 00 inches Measures 52 4 mm 2 06 in long 25 4 mm 1 00 in deep and 31 8 mm 1 25 in
3. Add up the total flow values in column 10 Enter at bottom of systems column 10 This is total system flow value Q NOTE In using this guide you will be referring to Design Charts shown STEP SIX Make a pump selection on page fourteen 14 Additional copies of Design Chart A are available from your Thrif T Luber distributor or by contacting Graco e Manual Pump STEP ONE All bearing data should be recorded on a copy of Design 1 Determine approximate operating oil viscosity V from Chart A Design Chart E Design Chart A e ist bearing size in column 2A and bearing type in column 2B 3 V a should 1 000 or less e Listthe lube taps per bearing in column 3 If the result exceeds 1 000 use a larger orifice size 5 0 is STEP TWO Calculate hourly bearing lube replacement requirements the smallest and 5 is the largest size in terms of flow for the base orifice and re select all the remaining orifice sizes e Using formulas given in Design Chart B calculate and enter in i l accordingly until V 1 a or less column 4 Example if base orifice is 2 0 and V is greater than e Multiply the value in column 4 by the lube factor of three and enter is 1 000 try 0 orifice as base in column 5 This figure is the lube volume e Divide the figure in column 5 by the number of taps column 3 and e Electric Pump enter this figure in column 6 This is the calculated lube volume 1 Determine approximate operating visc
4. individual branch lines Tubing Fittings and Accessories Thrif T Luber Orifice Systems utilize 4mm 5 32 inch nylon tubing and brass fittings to connect the system components Accessories such as the line filter and pressure gauge enhance reliability and provide the user with a method to monitor pump operation PROVEN QUALITY LEADING TECHNOLOGY Thrif T Luber Low Pressure Orifice Lubrication System SYSTEM OPERATION As shown in Figure 1 when the operator actuates the handle or when the electric motor receives a signal from the timer the pump is activated The pump dispenses lubricant either into the mainline tubing which distributes the lubricant to the manifolds feeding each Orifice Fitting or lines supplying bearing point Orifice Fittings Each Orifice Fitting is sized to dispense the proper amount of lubricant based on the requirements of the bearing Details of the operation of each component are included in this bulletin HAND OPERATED PUMP FILTER ELECTRIC MOTOR DRIVEN PUMP TUBING LTL 400 Interchangeability Trabon components are functionally interchangeable with other commonly used single line resistance orifice systems Mounting dimensions of the components are very close to those of other systems and for some componentsthere is a direct interchangeability in form and fit as well as function Applications Trabon Thrif T Luber Systems are ideal for small to medium size machine tools and o
5. to provide multiple branch lines that are then connected to the orifice fittings Thrif T Luber Orifice Systems utilize one of two types of pumps A single stroke hand operated pump where the stroke length and frequency determine the lube delivery volume to the system or an electric gear motor driven pump where the pump running time and frequency as established by the built in timer a remote timer or the machine PLC determine the volume of lubricant delivered to the system In either case the individual orifice fittings proportion pump flow to the individual lube points Various accessories are available to simplify installation An optional pressure gauge may be added to monitor pump operation SYSTEM COMPONENTS Pumps One hand operated pump and one electric motor driven pump each with a 1 2 gallon plastic reservoir and adjustable output allow the system to be designed precisely for the applications needs Timer The built in Solid State Timer can be set to control pump run duration and initiate lube intervals from 30 seconds to 32 hours Where desired optional remote timers can be used to control the lube interval and pump run time Manifolds and Orifice Fittings One manifold can be used to distribute lubricant to as many as nine 9 lube points Orifice Fittings come in three 3 types and ten 10 flow ranges to meet various lube requirements Bearing point Orifice Fittings are fed directly from the pump through
6. AE Number System at Various Temperatures F 90 60 7o 80 100 210 SAE 50 8 500 4 600 3 000 2 000 985 90 SAE 20 2 000 1 300 900 650 350 57 SAE10 850 600 420 310 185 46 Orifice Selection Columns A 1 are Max Min Base Ratios Page 14 LTL 400 Thrif T Luber Low Pressure Orifice Lubrication System dan vSsn 008 L Sr68 186 912 XV4 OIHO 0002 18S 912 82Lvv ouo puejee wxd POOMURID L068L ONI OOVHO ES SdV 40 YSEINN SWNIOA Alddns agn 3 v S f1 ut pejuug OU 09219 9002 HOLOVJ X SdVL HO H38IANRQN X LNSAWSYINOSY SONIHV38 Q ACTA MOT WLOL 0 Oa LHVHO WOH 9 ALISODSIA TIO A ONIHV38 NOLLOIH3HLLNV 3O 3dAL HO NYld DNIGINS JOWSYNS 20 3dAL 9 O MO14 dnd 4 SMOH 40 H38 IQIN ANY SONIHV38 NOILOINS ILNV JO HSLSWVIG LAVHS SZANS AXJ d ISd 3HfiSS3Hd d JO HLGIM ANY H LON3T1 SONIHV38 TV2IHONITAO JO HLGIM H3 L3IAVIG V MO14 1VLOL AINNNIOA EI HHN v SdVl g 3dAL ONIWSV3S AO HOLA O3H 9U8 A0 ON 3ZIS 3INWN HO NOILV2O1 ONIHV38 Jg g G MM DEL EE 1N3WdIno3 JO aovd od d ONLLVH3dO ALISOOSIA 110 Ek OiIivVINOInQV TWWANWIAL INMISAS AO AdA I YANOLSNO ON JTH V meys ubisag wn LY Page 15 All written and visual data contained in this document are based on the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice Contact us t
7. D NUMBER OF ROWS B TYPE OF SURFACE SLIDING PLAIN OR TYPE OF ANTI FRICTION BEARING SCOSITY C FROM CHART C TOTAL FLOW VALUE D BEARING REQUIREMENT x NUMBER OF TAPS x FACTOR 3 E LUBE SUPPLY VOLUME NUMBER OF TAPS A A UNIT OT IVEA Vorporanon Printed in U gt A Page 11 Thrif T Luber Low Pressure Orifice Lubrication System SYSTEM DESIGN amp COMPONENT SELECTION CONT D Orifice Selection 1 Select orifice size based on flow requirements 2 2 From our example we would have 24 total lube points Bottom of column 3 Design Chart A They are in five sizes as follows 4 Size 0 4 Size 2 e 8 Size 2 0 4 Size 3 0 4 Size 4 0 3 Select orifice type based on orifice function 3 e Type A Orifice These orifices are used when metering unit is mounted directly at the bearing point and at the end of the pressure line e Type B Orifice These orifices are used when metering unit is mounted into tee heads or junction bars and then connected to bearing point by 4 mm 5 32 in O D tubing e Type C Orifice These orifices are used when metering unit is mounted directly at the bearing point and used in conjunction with tee head to provide for two 2 or more tube connections 4 Forthe example we would then select LTL 400 If manual pump is chosen select output Multiply the value in column 5 Chart A lube volume cu in hr
8. Thrif T Luber Low Pressure GHRACO Orifice Lubrication System COST EFFECTIVE LOW PRESSURE ORIFICE LUBRICATION SYSTEM e For new equipment or replacement of any existing low pressure orifice system e Simple versatile and reliable e With sales parts and service worldwide FEATURES BENEFITS Thrif T Luber Orifice Systems offer an efficient method of applying lubricant resulting in less machine downtime increased productivity and a safer work environment Thrif T Luber Systems go beyond these advantages to provide e Easy system design and modification e Inexpensive components and installation e Fast payback Savings in lube maintenance man hours usually pays for the system within the first year e Manual or Electric pumps available to fit a wide variety of applications e Both Manual and Electric pumps feature adjustable outputs This allow two pumps to service small to large systems e Orifice fittings have only one moving part and it flexes rather than moves e Sintered bronze filters will not shred or clog as can happen with felt filters SYSTEM DESCRIPTION The Thrif T Luber Orifice System is a single line resistance type When the timer controller or operator activates the pump lubricant is forced down a single main line to manifolds and from there through individual orifice fittings and lines to the lube points If lube point mounted orifice fittings are used tee fittings and manifolds are used
9. Type TLO B 4 0 e Anchor Blocks Pump Selection 1 Select Type of pump Manual or Electric Consider e Cost e Preference e Size of System e Fittings e Manifold Bars e Tube Clips e Tubing Page 12 Thrif T Luber Low Pressure Orifice Lubrication System SYSTEM DESIGN amp COMPONENT SOLUTION Plumbing Lubricant flow velocity within this system is relatively low To assure accurate proportioning through the various orifices in the system it s important that velocity remain low Significant pressure drop through long delivery lines may affect the volume of oil delivered by the orifice fitting at the end of that line For general application 4 mm 5 32 in tubing is recommended Where applicable this tubing may be e 4mm 5 32 in dia x 64 mm 025 in wall nylon where flexibility is required e 4mm 5 32 in dia x 51 mm 020 in wall steel tubing e 4mm 5 32 in dia x 64 mm 025 in wall copper tubing where ease of installation is required e 3 18 mm 1 8 in dia hose where movement and flexibility are required Automatic Electric Pump Systems The selection of the tubing for the main line may affect the orifice selection in an automatic cyclic system which is in tended to operate with a pump pressure between 20 and 150 psi Main line pressure drop may affect the orifice proportioning if the fluid viscosity exceeds 3 000 SUS at operating temperature Main line pressure drop psi shou
10. by number of hours between lube applications Set pump output equal to or greater than this total If in the example we were using a manual pump system is realistically too large for manual pump the pump output is factory set amp 50 Cu in stroke To lubricate machine twice per shift every 4 hours we would multiply 1 437 total lube volume cu in hr by 4 hours between lube applications The result would be 5 748 cu in Pump would therefore require 11 5 or 12 full strokes 5 748 req every four hours DU output If an electric pump is chosen determine the type control needed Remote Control The pump motor would have to be actuated to provide sufficient On time to meet total lube volume requirements Pump output is 6 9 cc 420 cu in per minute at 60 Hz and 5 77 cc 350 cu in per minute at 50 Hz In our example at 60 Hz the pump would have to be actuated to run 3 4 minutes per hour 1 437 lube req 420 output Time Control Set volume control of the pump to the total system requirement In the example we chose the Time Control Pump The timer would be set at 3 42 minutes On time with one hour cycle e 4 Type TLO B 0 time at 60 Hz which would delivery 1 437 cubic inches e 1 Type TLO A 2 e 2 Type TLO B 2 Accessories e 1 Type TLO C 2 1 Select as required e 8 Type TLO B 210 e Gauge Electric Pump e 4 Type TLO B 3 0 e n Line Filter Electric Pump e 4
11. d the timer shuts off the pump motor but continues timing the total cycle time until the next cycle and On time Activation of the manual run button resets the cycle time to zero and starts a lube cycle Input power may be brought in to the terminal strip through either of two conduit holes on the left side of the compartment Subsequent electrical connection directions are provided above For more details contact your Thrif T Luber System distributor or the factory Figure 6 Page 5 LTL 400 REMOTE FAULT CONTROL L5 WIRING REMOTE USER CONTROL MANUAL RUN Figure 8 TIME CONTROL WIRING LOW LEVEL HUN EENEG o ojojojo INPUT LOAD MAN NOT 115 3AMPS RUN USED Figure 9 TOTAL CYCLE TIME MINUTES HOURS ON TIME MINUTES MINUTES HOURS Figure 10 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 THRIF T LUBER ORIFICES DESCRIPTION OPERATION The Thrif T Luber Orifice Fittings are available in three 3 configurations and 10 size ranges Each size 5 0 is smallest 5 is largest passes twice as much flow as the size below it Each is equipped with a sintered bronze filter tapered spiral orifice pin and built in check valve The sintered bronze filter and tapered spiral orifice pin makes the units more resistant to blockage from contamination than the designs used by competitive units When oil from the pump reaches the elastomeric r
12. e x 18 long 2 lube points 4 Horizontal Slide 9 wide x 18 long 2 lube points SLIDE 3 C 2 5 Vertical Slide Ways 1 5 wide x 18 long 4 lube points SLIDE 5 B 2 0 6 Horizontal Slide Ways 1 5 wide x 18 long 4 lube points E 7 Spindle 2 double row anti friction 2 shaft dia 1 CD lube point on each pair E j 8 Drive Shaft 2 anti friction 1 5 shaft dia 1 lube point BALL SCREW each pep ELECTRIC MOTOR FILTER SLIDE 9 Change Gears 4 gears 4 1 D x 3 4 wide 2 lube di dicm points total Figure 28 10 Motor Drive Shaft 1 anti friction 1 5 Dia 1 lube point each sumen ZCAERCLO AAC MACHINEOR Aq A LINGE IMACHUN E 1 LOCATION OR NAME OF BEARING B Rows Vertical Slide m Horizontas Shide o rra KI pind de A f Drive Shaft 1 5 x Row AE Change Gears 4 hov Mu Geo 1 Motor Drive Shaft 1 5 Row EE L o E ie TI NER REEL SYSTEM TOTAL P G Q n N W Q D TYPE OF SYSTEM MANUAL AUTOMATIC X OIL VISCOSITY 7Z00 OPERATING TEMP 60 SR 5 6 7 8 LUBE LUBE VOLUME VOLUME BASE CU IN HR PERTAP RATIO FACTOR E C O LN N X t Sz kre ei N t N Be p O O D 2 X X KN gi dias D N rie no 4OO DATE Xx XX XX PAGE d 7 de QU la e E d T43 xi de DIAMETER AND WIDTH OF CYLINDRICAL BEARINGS LENGTH AND WIDTH OF IDES SHAFT DIAMETER OF ANTLFRICTION BEARINGS AN
13. ed when oil flow is observed at the most remote point of the system or if pump has gauge accessory when gauge pressure reaches the planned pressure level In Thrif T Luber Manual Pump supplied systems Prefilling may require several operations of the pump handle The system is adequately preprimed when the pump handle recedes slowly Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 Design Chart A CUSTOMER TYPE OF SYSTEM MANUAL AUTOMATIC O DATE MACHINE OR ty EQUIPMENT OIL VISCOSITY OPERATING TEMP E L Ed van LOCATION OR NAME P A en etc nes Wgl TOTAL FLOW OF BEARING TYPE B BRG REQ FACTOR cum JHR pes TAP E SIZE VALUE oem IN IHR E FILE NO on ri v Di EI STH AND WIDTH OF INGS AND NUMBER OF ROWS HKFRICTION 8 ON J DESIGN CHART B Area 2 rxDxL Plain Bearing D shaft diameter L length of bearing Slide Gibs amp Ways A width x length travel Anti Friction Area shaft diameter x number of rows Area T x Pd x W Pd pitch diameter W width of gear Gears calculated each gear in train Area mr x Pd x rows x travel Ball Screw Pd pitch diameter of ball race Rows number of rows in engagement with shaft TOTAL SYSTEM FLOW VALUE Q suggested Lube Replenishment Guidelines The replenishment lube value in cubic inches per hour Area x 001 DESIGN CHART C QUINZE DESIGN CHART E Approximate SUS Oil Viscosities for S
14. equency in either hours or minutes The Remote Control option allows lube frequency to be scheduled from the machine PLC or a remote mounted timer SPECIFICATIONS 0 035 cu in 0 572 cm per stroke 0 42 in min 6 9 cc For Time Control 60 Hz Figure 5 Pump Output adjustable from 0 070 to 25 2 in hr 1 14 to 413 03 cm hr Output determined by system control ORDERING INFORMATION pulsed 100 SUS to 10 000 SUS Description 1 PartNo Old Part No imits oil only TLEP 10 115V Time Control 564068 521 500 930 Reservoir Capacity 0 5 gallon 1 89 liters 116 in 1 890 cm TLEP 11 115V Remote Control 564067 521 500 840 Operating Pressure Gauge 0 300 psi 0 21 bar Min OFCIZ8 Timer Replacement Board 558031 572 142 590 Er Replacement Relief Valve 563162 508 310 015 Max Intermittent 140 F 60 C 50 duty cycle or less Replacement Pump 564065 591 500 720 Max Operating R eplacement Reservoir amp Motor 115 VAC 50 60 Hz Shaded pole 12 rpm Replacement Gearmotor 115 VAC 557641 521 500 650 Pump Gearmotors 60 Hz 10 rpm 50 Hz 0 13 amp running Reservoir Low Level 1115 VAC 10 watt load Switch Page 4 Thrif T Luber Low Pressure Orifice Lubrication System THRIF T LUBER ELECTRIC PUMP CONT D OPERATION The electric gearmotor drives an eccentric A which reciprocates the piston B in the pump body C The lubricant is discharged past an internal check valve through the out
15. ing that functions as a check valve the ring flexes in the direction of flow as a result of pressure 0 1 bar 2 psi cracking pressure When pump flow stops the ring resumes its original shape and blocks back flow toward the pump The spiral grove in the tapered pin is used to accurately meter the volume of oil delivered to each bearing SPECIFICATIONS Body and Orifice Pin Material er smerec nne omiu Figure 11 Pressure Dans Oil Flow Filter Elastomeric Check Valve Orifice Body Metering Pin gt 4 P e Figure 12 Page 6 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 Thrif T Luber Orifices Cont d DIMENSIONS mm Inches TYPE A FIGURE 13 Description PartNo Old Part No TLOA 50 size 5 0 464 010 050 TLOA 40 size 4 0 464 010 040 TLOA 30 size 3 0 464 010 030 TLOA 20 size 2 0 464 010 020 TLOA 0 size 0 464 010 000 TLOA 1 size 1 464 010 001 TLOA 2 size 2 464 010 002 This configuration is used when the orifice metering unit is mounted directly at the bearing point at the end of the pressure line 5 16 24 UNF 2A 1 8 27 NPTF Wr ee SQ TYPE B FIGURE 14 Description Low Pa This configuration is used when the orifice metering unit is mounted into Tee heads or manifold bars and then connected to the bearing point by tubing Figure 14 Dep Low pa Caen Lee This configuration is used when the orifice metering unit is to be mounted
16. ld not exceed 15 percent of system pressure Main line pressure drop may be calculated by first determining the Q value of the line with the following formula Q 53 192 000 xd where d inside diameter of the main line L L the length of line in inches For 5 32 in tubing with 025 in wall the formula is Q 560 length of line in feet The pressure drop of the line can be determined by P FxV where P line pressure drop Q F pump flow rate 40 for the Thrif T Luber Electric Pump V viscosity of fluid at operating temperature Q the flow value of the tubing see preceding When the main line exceeds 10 feet or the fluid viscosity exceeds 5 000 SUS at operating temperature consult the factory Page 13 LTL 400 Prefilling the System The system and all of its delivery lines must be filled with oil prior to initial operation of the equipment to be lubricated Also the system should be filled after a substantial machine shutdown period This assures immediate lube supply to the bearings The prefill volume may be as little as 1 0 cubic inch or as much as 3 0 cubic inches in larger systems In Thrif T Luber Electric Pump supplied systems Prepriming may require several minutes of pump operation for small systems Larger systems may require six to eight minutes of pump operation The manual run button may be used to override the normal pump setting The system can be considered adequately preprim
17. let D If lube system pressure exceeds 10 bar 150 psi the relief vale E automatically opens INSTALLATION Connecting the pump for Remote Control using the machine PC or some other external control Input power may be brought into the pump through either of the conduit holes on the left side of the motor compartment Subsequent electrical connection directions are provided above When these connections are made the pump motor s On time or output will be determined by the machine or external system control For 60 Hz service pump output will be 6 9 cm 420 in per minute on 50 Hz it will be 5 7 cm 350 in per minute For most applications we recommend that the pump operate a minimum of one stroke five seconds On per lubrication cycle When in doubt consult the factory Connecting the pump for Time Control Set the slide switch to either minutes or hours for cycle time Next set the desired pump On time using a screwdriver in the slotted head of the scale marked On time minutes Then in a similar fashion set the specific interval at which lube cycles are to occur using the appropriate scale under total cycle time To find On time in minutes Total Output Required Per Cycle Time cu in divided by 42 60 Hz or 35 50 Hz When power is applied the timer activates the lube pump motor and simultaneously begins timing of the On time and Total cycle time When the On time is complete
18. mum oil viscosity is 100 SUS maximum is 10 000 SUS e Maximum pump pressure is 75 psi at full stroke 20 psi at end of stroke e To drain reservoir remove the rubber plug from the bottom of the reservoir e Cleaning should be done with a mild detergent Do not use gasoline or cleaning solvents ORDERING INFORMATION Thrif T Luber Manual Pump TLMP 00 564012 384 000 000 Figure 3 Page 3 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 THRIF T LUBER MANUAL PUMP CONT D PUMP STROKE ADJUSTMENT The standard Thrif T Luber Manual Pump is factory set for a lube output of 8 2 cc 0 5 cu in per stroke To determine if the pump output needs to be reduced multiply the total system volume requirement by the lube interval in hours Pump output should be equal to or greater than this amount If a much lower output is required 44 lift pump handle A to its fully extended position Remove retaining ring from slot D and reinstall in slot E Ka S SI S ei p SEX Gen IN VL LLNS CY Le KA THRIF T LUBER ELECTRIC PUMP DESCRIPTION Tri T uber The Thrif T Luber Electric Pump Fig 5 is a positive displacement eri electric gear motor driven piston pump that delivers 572 cc 0 035 cu in per stroke 6 9 cc 0 42 cu in per minute It is available with two 2 control options that allow the user to select a model which best suits his needs The Time Control schedules lube fr
19. oday a To receive product information or talk with a Graco representative call 800 533 9655 or visit us online at www graco com 2006 2011 Graco Inc Form No LTL400 Rev C 11 11 Printed in U S A All other brand names or marks are used for identification purposes and are trademarks of their respective owners All written and GHRACO visual data contained in this document are based on the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice
20. osity V from Design cubic inches per hour per tap Chart E STEP THREE Determine lube ratio 2 Determine total system flow Q from column 10 of Design e Select lowest volume requirement in column 6 and assign base Chart A ratio of 1 Enter in column 7 3 Using Design Chart D plot coordinates of V and Q on chart If the point falls within shaded area of Chart D the system e Divide all other volumes in column 6 by the lowest volume j is compatible with electric pump requirement see preceding point Enter the results as the remaining base ratios in column 7 Refer to Design Chart C for 4 If the coordinates fall above the shaded area below 20 psi base ratio combinations Choose the base ratio number that is select base orifice with lower base ratio and re select all closest to your exact calculation result remaining orifice sizes accordingly STEP FOUR Select orifice Size Example If base orifice is 210 try 3 0 orifice This will e Determine maximum to minimum base ratio number from column double system pressure Repeat until coordinates fall within 2 shaded area 5 If the coordinates fall below shaded area above 150 psi select base orifice with higher base ratio and re select remaining orifice sizes accordingly e Locate the appropriate vertical column from Design Chart C This is done by finding the maximum base ratio from Design Chart C that is nearest in number to the maximum base ratio you have jus
21. t determined Example If base orifice is 2 0 try 0 orifice This will decrease system pressure by 1 2 Repeat until coordinates e The bearing s with the smallest volume requirement becomes the a fall within shaded area base orifice and is assigned the smallest number in column 1 D To assist in pump selection the actual system pressure can be determined by solving for P in the formula P FxV Note Select orifice size in same vertical column that is nearest in Q number to base ratio when in doubt use next larger size e Using the same vertical column from Design Chart C select orifice sizes to meet all base ratios in column 7 Where P System Operating Pressure PSI e Enter all orifice sizes in column 8 on Design Chart A F Pump Flow Velocity Rating 40 V Viscosity of Oil Operating Temp e Using flow value column from Design Chart C enter each flow Q Total System Flow value for corresponding orifice size in column 9 of Design Chart A Page 10 Thrif T Luber Low Pressure Orifice Lubrication System System Design amp Component Selection Cont d LTL 400 EXAMPLE Milling Machine 7200 SUS Oil 60 F Operating Temperature Automatic System 24 Lube Points Bearings 1 Feed Screw ball screw 1 5 pitch dia x 8 rows 2 SPINDLE lube points Hd 2 Vertical Slide Drive ball screw 1 5 pitch dia x 8 rows 2 lube points SLIDE BALL 3 CRE A 2 3 Vertical Slide 9 wid
22. ther equipment requiring economical intermittent oil lubrication FITTINGS AND ADAPTERS i Su X BEARING MANIFOLD MOUNT M Me ORIFICE FITTINGS MANIFOLD ANCHOR FITTINGS BEARING POINT TYPE A ORIFICE METER BEARING Figure 1 Thrif T Luber System Diagram Page 2 Thrif T Luber Low Pressure Orifice Lubrication System LTL 400 THRIF T LUBER MANUAL PUMP DESCRIPTION OPERATION The Thrif T Luber Manual Pump Fig 2 is a positive displacement single stroke pump that delivers 8 2 cc 0 50 cu in of oil per stroke or 3 6 cc 0 22 cu in per stroke As the pump handle is pulled up the return spring is compressed and the inlet check ball unseats allowing oil to enter and fill the piston chamber When the handle is released the return spring drives the piston down the inlet check ball re seats and oil is forced out of the pump outlet and through the connecting lines and orifice fittings not shown to the friction surfaces on the machine Figure 2 SPECIFICATIONS Lubricant Viscosity 100 SUS to 10 000 SUS system is designed DIMENSIONS Inches mm 1 8 NPTF LUBE OUTLET RR O hw Limits only for oil lubrication Reservoir Capacity 0 5 gallon 1 89 liters 116 eum 1 890 cm Operating O F to 140 F 17 8 C to 60 C Temperatures Max Operating 75 psi 5 bar Pressure GENERAL INSTRUCTIONS e Fill reservoir with clean filtered oil Never allow the pump to operate on an empty reservoir Mini
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