Bench Test Procedure for Hydraulic Piston Pumps {5070} Caterpillar


Bench Test Procedure for Hydraulic Piston Pumps {5070}

Usage:

631E 1AB
Agricultural Tractor
MT735 (S/N: AKN1-UP)
MT745 (S/N: ALA1-UP)
MT755 (S/N: ALM1-UP)
MT765 (S/N: AMS1-UP)
MT835 (S/N: BAM1-UP)
MT845 (S/N: BBP1-UP)
MT855 (S/N: BCC1-UP)
MT865 (S/N: BDS1-UP)
MTC735 (S/N: 8121-UP)
MTC745 (S/N: 8131-UP)
MTC755 (S/N: 8141-UP)
MTC765 (S/N: 8151-UP)
MTC835 (S/N: 8161-UP)
MTC845 (S/N: 8171-UP)
MTC855 (S/N: 8181-UP)
MTC865 (S/N: 8191-UP)
Asphalt Compactor
CB-534D (S/N: EAA1-UP; GCA1-UP; C2B1-UP; C4B1-UP; FGH1-UP; B5M1-UP; C8M1-UP)
CB-564D (S/N: C6D1-UP; D4M1-UP)
Asphalt Paver
AP355F (S/N: NRG1-UP; NTT1-UP)
Forwarder
554 (S/N: TGH1-UP)
Industrial Tractor
TK371 (S/N: WBG1-UP)
TK381 (S/N: WBH1-UP)
Paving Compactor
CB-634D (S/N: CDF1-UP)
Petroleum Power Train Package
TH35-C15I (S/N: PBN1-UP)
Petroleum Transmission
TH31-E61 (S/N: SKY1-UP)
TH35-E81 (S/N: TZM1-UP)
Pipelayer
583T (S/N: CMX1-UP)
PL72 (S/N: P721-UP; P731-UP)
PL83 (S/N: KSD1-UP)
Rotary Drill
MD6240 (S/N: DR21-UP)
MD6290 (S/N: DR31-UP; DT81-UP)
MD6420 (S/N: DR41-UP; DN91-UP)
Track-Type Tractor
D3G (S/N: CKA1-UP; CLB1-UP; CFC1-UP; CFF1-UP; JMH1-UP; ZDN1-UP; BYR1-UP; CXT1-UP)
D3K (S/N: JTD1-UP; FFF1-UP; LLL1-UP)
D3K2 (S/N: GAE1-UP; KFF1-UP; KLL1-UP)
D4G (S/N: FDC1-UP; HYD1-UP; CFN1-UP; TLX1-UP)
D4K (S/N: MMM1-UP; RRR1-UP)
D4K2 (S/N: KMM1-UP; KRR1-UP)
D5G (S/N: WGB1-UP; RSC1-UP; CLF1-UP; D5G1-UP; RKG1-UP; FDH1-UP; DKT1-UP; CLW1-UP; FDW1-UP)
D5K (S/N: JLF1-UP; WWW1-UP; YYY1-UP)
D5K2 (S/N: TRF1-UP; KWW1-UP; KYY1-UP)
D5R (S/N: D5L1-UP; D5X1-UP)
D5R2 (S/N: R5A1-UP; WRE1-UP; WDZ1-UP)
D6K (S/N: DHA1-UP; NCF1-UP; HMG1-UP; FBH1-UP)
D6K2 (S/N: MXK1-UP; DFR1-UP; JTR1-UP; RPR1-UP; WMR1-UP; RST1-UP)
D6N (S/N: SC61-UP; PBA1-UP; LJR1-UP; PER1-UP; GHS1-UP; P5T1-UP; MLW1-UP)
D6R2 (S/N: PPP1-UP; SSS1-UP; TTT1-UP)
D6T (S/N: 2D21-UP; CR31-UP; 2B31-UP; MB51-UP; AK71-UP; MH71-UP; CG81-UP; 7C91-UP; SGA1-UP; KSB1-UP; ZJB1-UP; JZC1-UP; DTD1-UP; RAD1-UP; STE1-UP; EJJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; JML1-UP; MEL1-UP; JNM1-UP; TSM1-UP; WLM1-UP; WRN1-UP; K1R1-UP; KMR1-UP; PLR1-UP; WES1-UP; HYT1-UP; SGT1-UP; JRW1-UP; RCW1-UP; NDY1-UP; TMY1-UP; HTZ1-UP; SGZ1-UP)
D7E (S/N: HKA1-UP; KZA1-UP; TJA1-UP; MDB1-UP; SCG1-UP; SSH1-UP; TAN1-UP; JDP1-UP; LTW1-UP)
D8R (S/N: JR81-UP; DWJ1-UP)
D8T (S/N: JJ51-UP; MB81-UP; J8B1-UP; FMC1-UP; MLN1-UP; FCT1-UP; JET1-UP; KPZ1-UP)
D8T Series 2 (S/N: AW41-UP)
D9T (S/N: TWG1-UP; RJS1-UP; REX1-UP)
Wheel Feller Buncher
HA771 (S/N: HAF1-UP)
HA871 (S/N: HAG1-UP)
Wheel Tractor-Scraper
621F (S/N: 4SK1-UP)
621G (S/N: DBB1-UP; DXB1-UP; CEN1-UP; ALP1-UP)
623G (S/N: DBC1-UP; CES1-UP; ARW1-UP; CEW1-UP; DBY1-UP)
627F (S/N: 1DL1-UP)
627G (S/N: DBD1-UP; AXF1-UP; CEX1-UP)
631E (S/N: 1AB1-UP)
631G (S/N: DFA1-UP; DXE1-UP; AWK1-UP; CLR1-UP)
633E Series II (S/N: 2PS1-UP)
637E (S/N: 1FB1-UP)
637G (S/N: CEH1-UP; DFJ1-UP; AXT1-UP)
651E (S/N: 4YR1-UP; 5XR1-UP; 88Z1-UP)
657E (S/N: 6MB1-UP; 5YR1-UP; 6PR1-UP; 7KR1-UP; 86Z1-UP)
657G (S/N: A4G1-UP)

Introduction

Table 1
Revision  Summary of Changes in REHS9390 
09  Updated effectivity. 
08  Added new Track-Type Tractor serial number prefixes JJ5 and DWJ to document. 
07  Added new Track-Type Tractor serial number prefixes 2B3, AK7, SGZ, 2D2, 7C9, and K1R to document. 
06  Updated Value in Table 21. 
Added Blank Specifications Table.
05  Added new Track-Type Tractor serial number prefixes MB8, JR8, NDY, MB5, JML, HYT, MH7, and JNM to document. 
Added new Rotary Drill serial number prefixes DN9, DR4, DR3, DT8, and DR2 to document.
Added new 465-2614 Piston Pump Gp. to document.
Added new 465-2613 Piston Pump Gp. to document.
Added new 465-2612 Piston Pump Gp. to document.
Added new 465-2611 Piston Pump Gp. to document.
04  Added new 475-6744 Piston Pump Gp. to document. 
Added new 498-1485 Piston Pump Gp. to document.
Added new 498-1486 Piston Pump Gp. to document.
Added new Asphalt Paver serial number prefixes NRG and NTT to document.
03  Updated Tables in Test Specifications. 
02  Updated All Tables in Test Specifications. 
01  Added new 453-3635 Piston Pump Gp. to document. 
Added new Pipelayer serial number prefixes P72 and P73 to document.
00  New document. 

© 2017 Caterpillar All Rights Reserved. This guideline is for the use of Caterpillar Dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law. Information contained in this document is considered Caterpillar: Confidential Yellow.

This Special Instruction includes test procedures for piston pumps. This Special Instruction also provides specifications. The technician should have a good understanding of hydraulic piston pumps. The technician should be educated in the operation of the hydraulic test bench. The test benches in this document are available through the Caterpillar Service Tool Division. Gather all necessary tooling before you need to hook up the pump. Some of the required tooling appears in a table at the end of this document. There are many possible variations of tooling that could be used. Not every possible variation can be listed.

For technical questions when using this document, work with your Dealer Technical Communicator (TC).

To report suspected errors, inaccuracies, or suggestions regarding the document, submit a form for feedback in the Service Information System (SIS Web) interface.

Canceled Part Numbers and Replaced Part Numbers

This document may not include all Canceled part numbers and replaced part numbers. Use NPR on SIS for information about Canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Safety



Illustration 1g02139237

------ WARNING! ------

Personal injury or death can result from improperly checking for a leak.

Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death.

If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.


------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.


------ WARNING! ------

Pump test pressures in this guideline may exceed the normal operating range of the hydraulic test hoses utilized when connecting the tested pump to the test bench. However, the order of magnitude of these pressures is significantly below the burst strength of the Caterpillar "XT6" product.

High pressure oil can escape through improperly assembled hoses and fittings. High pressure oil can also escape through poorly maintained hoses and fittings. High pressure oil may also leak through hose that has become damaged over the life of the hose due to the pressure levels that occur during test bench operation.

Personal injury or death can result from improper hose & fitting inspection or improper hose replacement procedures. Escaping fluid under pressure can penetrate body tissue causing serious injury, and possible death.

Thoroughly inspect all testing hoses, fittings, and quick disconnects prior to any testing operation. Check the assembly date tag or hose assembly log date for a hose life indicator. Replace all Test Bench hoses at a minimum of every 2 years or earlier if the hose or fittings appear to be damaged.


Summary

This procedure is specific to the type of pump and the type of control. Refer to the test specifications and the tooling at the end of this document.

Note: A paper copy of this document may not be the latest version. Go to the Service Information System (SIS) to view the latest version.

References

Table 2
References 
Media Number  Title 
REHS1761  Required Tooling for Bench Testing Hydraulic Components 
SEBF8810  Hydraulic Pump, Motor, and Cylinder Bench Test Procedure Reference Manual 
SEHS8892  Operating Instructions for Caterpillar 1U-9400 Series Hydraulic Test Center 
NEHS0563  Tool Operating Manual for 9U-5000 Series Hydraulic Test Bench 

Connections for the Caterpillar Hydraulic Test Center



Illustration 2g01140178
Connections for the test center
(1) Flow control for discharge
(2) F3 Flow meter inlet
(3) F4 Flow meter inlet
(4) Oil supply from the auxiliary pump
(5) F3 inlet for the flow meter with flow limiter
(6) F3 outlet for the flow meter with pressure control
(7) Load sensing pressure
(8) Signal pressure
(9) F4 outlet for the flow meter
(10) Return to tank
(11) Connections for case drain
(12) Oil supply


Illustration 3g01140179
Control and gauges for the test center
(13) Meter for speed and torque
(14) Gauge for signal pressure
(15) Control for signal pressure
(16) Pressure gauge for auxiliary pump
(17) Auxiliary pump flow
(18) F3 discharge pressure gauge
(19) F3 discharge flow
(20) F4 discharge pressure gauge
(21) F4 discharge flow
(22) Auxiliary pump flow control
(23) F3 margin pressure
(24) F3 Load control for discharge pressure
(25) F4 Load control for discharge pressure

Connections for the Caterpillar Hydraulic Test Bench



Illustration 4g01140180
Connections for the test bench
(26) Flow meter 1 loop and flow meter 2 loop
(27) Oil supply


Illustration 5g01140183
Connections for the Test Bench
(28) Flow meter 2 loop
(29) Flow meter 1 loop
(30) Flow meter 2 outlet
(31) Signal pressure line
(32) Flow meter 2 inlet
(33a) Flow meter 1 outlet
(33b) Auxiliary oil supply outlet
(34) Auxiliary oil supply inlet
(35) "Flow meter 1" inlet


Illustration 6g01140185
Control and gauges for the test bench
(36) Auxiliary oil supply pressure
(37) Signal pressure
(38) Control for signal pressure
(39) Flow meter 1 discharge pressure
(40) Control for auxiliary oil supply pressure
(41) Flow meter 2 discharge pressure
(42) Auxiliary oil supply control
(43) Flow meter 2 discharge flow
(44) Discharge flow for auxiliary pump
(45) Flow meter 1 discharge flow
(46) Flow meter 1 load control
(47) Speed and direction control
(48) Flow meter 2 load control

Pump Illustrations

This type of pump is manufactured in several configurations shown in Illustrations 7 and 8. Although the configurations differ in appearance, they will be tested the same. Use Illustrations 7 and 8 for identifying port locations during "Pump Setup".



Illustration 7g03850422
Port locations for pumps with adjacent discharge ports.
(49) Gauge port for stroking pressure
(50) Connector for electrical solenoid
(51) Adjustment screw for hydraulic zero
(52) Suction port for charge pump
(53) Pump discharge port
(54) Pump discharge port
(55) Case drain port
(56) Connector for electrical solenoid
(57) Adjustment screw for mechanical zero
(58) Gauge port for stroking pressure
(59) Return port for charge pump
(60) Adjustment screw for high-pressure cut
(61) Discharge port for charge pump
(62) Gauge port for discharge pressure
(63) Gauge port for discharge pressure
(64) Gauge port for charge pressure


Illustration 8g03850423
Port locations for pumps with opposing discharge ports.
(49) Gauge port for stroking pressure
(50) Connector for electrical solenoid
(51) Adjustment screw for hydraulic zero
(52) Suction port for charge pump
(53) Pump discharge port
(54) Pump discharge port
(55) Case drain port
(56) Connector for electrical solenoid
(57) Adjustment screw for mechanical zero
(58) Gauge port for stroking pressure
(59) Return port for charge pump
(60) Adjustment screw for high-pressure cut
(61) Discharge port for charge pump
(62) Gauge port for discharge pressure
(63) Gauge port for discharge pressure
(64) Gauge port for charge pressure
(77) (Y) control pressure port (may not be present)


Illustration 9g03852180
Hydraulic schematic for pumps with return port for charge pump (59)
( 49) Gauge port for stroking pressure
(50) Connector for electrical solenoid
(51) Adjustment screw for hydraulic zero
(52) Suction port for charge pump
(53) Pump discharge port
(54) Pump discharge port
(55) Case drain port
(56) Connector for electrical solenoid
(57) Adjustment screw for mechanical zero
(58) Gauge port for stroking pressure
(59) Return port for charge pump
(60) Adjustment screw for high-pressure cut
(61) Discharge port for charge pump
(62) Gauge port for discharge pressure
(63) Gauge port for discharge pressure
(64) Gauge port for charge pressure


Illustration 10g03852546
Hydraulic schematic for pumps without return port for charge pump (59). Instead, use gauge port for charge pressure (64) to return charge oil flow.
(49) Gauge port for stroking pressure
(50) Connector for electrical solenoid
(51) Adjustment screw for hydraulic zero
(52) Suction port for charge pump
(53) Pump discharge port
(54) Pump discharge port
(55) Case drain port
(56) Connector for electrical solenoid
(57) Adjustment screw for mechanical zero
(58) Gauge port for stroking pressure
(60) Adjustment screw for high-pressure cut
(61) Discharge port for charge pump
(62) Gauge port for discharge pressure
(63) Gauge port for discharge pressure
(64) Gauge port for charge pressure


Illustration 11g03856426
Hydraulic schematic for pumps with (77) (Y) control pressure port. Test Specifications will indicate if port (77) is present.
(49) Gauge port for stroking pressure
(50) Connector for electrical solenoid
(51) Adjustment screw for hydraulic zero
(52) Suction port for charge pump
(53) Pump discharge port
(54) Pump discharge port
(55) Case drain port
(56) Connector for electrical solenoid
(57) Adjustment screw for mechanical zero
(58) Gauge port for stroking pressure
(60) Adjustment screw for high-pressure cut
(61) Discharge port for charge pump
(62) Gauge port for discharge pressure
(63) Gauge port for discharge pressure
(64) Gauge port for charge pressure
(77) (Y) control pressure port

9U-5902 Rectifier Block



Illustration 12g01435070
9U-5902 Rectifier Block Connections


Illustration 13g01348031
9U-5902 Rectifier Block Schematic
(66) High-pressure port
(67) High-pressure outlet
(68) High-pressure port
(69) Low-pressure inlet

9U-5893 Heat Exchanger



Illustration 14g01348036
9U-5893 Heat Exchanger Connections
(70) Inlet from flow meter loop
(71) Outlet "to rectifier block"
(72) Water inlet
(73) Water outlet

198-4240 Electric Pressure Gauge Group



Illustration 15g01348034
198-4240 Electric Pressure Gauge Group Connections
(74) Pressure gauge
(75) Red transducer 34500 kPa (5000 psi)
(76) Blue transducer 3450 kPa (500 psi)

Note: The accuracy of the mechanical zero position and the hydraulic zero position is crucial. The use of the 198-4240 Electric Pressure Gauge Group is Highly recommended.

Pump Setup

Note: A power supply is required to operate the solenoid. The power supply should be capable of delivering 0 mA to 1200 mA with an infinite setting in that range.

  1. Install pressure taps in the following test ports:

    (49) Gauge port for stroking pressure

    (58) Gauge port for stroking pressure

    (62) Gauge port for discharge pressure

    (63) Gauge port for discharge pressure

  2. Connect power supply to the connector for electric solenoid (50) or (56).

  3. Connect pump discharge ports (53) and (54) to the 9U-5902 Rectifier Block high-pressure ports (66) and (68).

  4. Connect the 9U-5902 Rectifier Block outlet (67) to the flow meter inlet on the test bench.

  5. Connect the flow meter outlet to the 9U-5398 Heat Exchanger inlet (70) .

  6. Connect the 9U-5893 Heat Exchanger outlet (71) to the low-pressure return (69) on the 9U-5902 Rectifier Block.

  7. Connect the red transducer 34500 kPa (5000 psi) (75) or 8T-0860 Pressure Gauge to the pump's gauge ports for discharge pressure (62) and (63) .

  8. Some pumps do not have internal charge pumps. Refer to the Test Specifications if the pump that is being tested uses an internal charge pump or an external charge pump. Connect the charge pump suction port (52) to the test bench oil supply for pumps with an internal charge pump. Pumps without an internal charge pump will require auxiliary charge flow supplied to the suction port (52)

  9. Connect discharge port for charge pump (61) to return port for charge pump (59) or gauge port for charge pressure (64) if port (59) is not present.

  10. Some pumps require auxiliary pressure supplied to (Y) control pressure port (77). In this case, connect a hose from the auxiliary pressure supply on the test bench to (Y) control pressure port (77) on the pump. Refer to the specifications table for your pump in the Test Specifications section of this document to determine if auxiliary pressure is required. If there is no mention of (Y) control pressure in the specifications table, the pump will not require auxiliary pressure. Refer to Illustration 8 for locating the (Y) control pressure port (77) if necessary.

  11. Purge all air from the suction line. Loosen the suction hose at the pump until oil leaks from the connection. Tighten the suction hose.

  12. Fill the pump case with oil. Pour oil directly into case drain port (55) until the case is full. Direct flow from case drain port (55) to test bench reservoir.

  13. Do not rotate the pump in the wrong direction. The correct direction of rotation will be stated on the pump. The correct direction of rotation will also be in the Test Specifications. The direction of rotation is viewed from the input shaft end. Visually check the pump for proper rotation.

Adjustment for Mechanical Zero Position

  1. Turn the load control on the test bench completely clockwise to control the pump discharge pressure. Start rotating the pump at the value in Step 1 of the Test Specifications. Be sure to sustain charge pump flow to the pump in Steps 1 through 5 of the Adjustment for Hydraulic Zero. Vent the ports for the stroking pressure (49) and (58) to the atmosphere. This will equalize the pressure on the servo spool. Install pressure gauges on ports (62) and (63). Turn the load control on the test bench completely clockwise to control the pump discharge pressure. If the mechanical zero adjustment is incorrect, a discharge pressure higher than the charge pressure may occur.

    Note: If the mechanical zero is unable to be set correctly, the hydraulic zero may be too far out of adjustment. In this case it will be necessary to set the hydraulic zero within 300 kPa (43.5 psi) using the procedure "Adjustment for Hydraulic Zero Position". Try to set the mechanical zero again. This may need to repeated several times to correctly achieve the mechanical zero adjustment. After the mechanical zero is set, proceed to "Adjustment for Hydraulic Zero Position". For the final hydraulic zero adjustment, set the hydraulic zero within 21 kPa (3 psi)

    Note: Some pumps require auxiliary pressure supplied to (Y) control pressure port (77). Refer to the specifications table for your pump in the Test Specifications section of this document to determine if auxiliary pressure is required. If there is no mention of (Y) control pressure in the specifications table, the pump will not require auxiliary pressure. Refer to Illustration 8 for locating the (Y) control pressure port (77) if necessary.

  2. Turn the adjustment screw for the mechanical centering (57) clockwise. Continue to turn until a pressure of 200 psi above charge pressure is achieved. This pressure may be seen on the gauge port for the system pressure B (62) or gauge port for the system pressure A (63). Mark the position of the adjustment screw for the mechanical centering (57).

  3. Turn adjustment screw for the mechanical centering (57) counterclockwise until pressure increases on gauge ports (62) or (63). Mark the position of the adjustment screw for the mechanical centering (57).

  4. A mark should be placed halfway between position one and position two. Turn the adjustment screw for the mechanical centering (57) to the midpoint of both marks. There should be less than a 34.5 kPa (5 psi) pressure differential between pump gauge ports (62) and (63).

  5. Stop rotating the pump. Turn the load control on the test bench for pump discharge pressure counterclockwise. Allow the discharge pressure of the pump to decrease. Disconnect pressure gauges from ports (62) and (63).

Adjustment for Hydraulic Zero Position

  1. Connect two blue transducers 3450 (500 psi) or connect two 6000 kPa (870 psi) 8T-0856 Pressure Gauges into both gauge ports for stroking pressure (49) and (58).

  2. Start rotating the pump to the value listed in Step 1 of the Test Specifications. Turn the load control for the pump discharge pressure clockwise. This will allow pump discharge pressure to increase in the following steps.

    Note: Some pumps require auxiliary pressure supplied to (Y) control pressure port (77). Refer to the specifications table for your pump in the Test Specifications section of this document to determine if auxiliary pressure is required. If there is no mention of (Y) control pressure in the specifications table, the pump will not require auxiliary pressure. Refer to Illustration 8 for locating the (Y) control pressure port (77) if necessary.

  3. Adjust the adjustment screw for hydraulic zero (51) until the pressure at the gauge ports for the stroking pressure (49) and (58) differ by less than 21 kPa (3 psi).

    Note: Do not turn the adjustment screw for the hydraulic zero (51) more than 90 degrees in either direction.

  4. Turn the load control for the pump discharge pressure counterclockwise. This will allow pump discharge pressure to decrease. Stop rotating the pump and allow pump pressure to dissipate. Disconnect the pressure gauges that are connected to the gauge ports for stroking pressure (49) and (58).

Test Procedure

Note: The steps in the procedure correlate with the steps under the Test Specifications according to your specific part number.

The contamination level of the hydraulic oil in the test bench should be ISO 16/13 or better. The oil in the test bench should be one of the following.

  • SAE 10W at 50 °C (122 °F) or

  • Mobil DTE-11 at 46 °C (115 °F)


Illustration 16g01143449


Illustration 17g01143458

  1. Start rotating the pump according to the RPM in Step 1 of the Test Specifications. Pumps without a charge pump will require auxiliary charge flow according to the value in Step 1 of the Test Specifications. Verify the flow rates and listen for abnormal noise. Verify that all connections are secure. Verify that all connections are tight. Check for leaks around shaft seals. Check for leaks around control valves. Check the gauge port for the charge pressure (64). Compare the actual charge pressure with the value in Step 1 of the Test Specifications. If the charge pressure is not within the Test Specifications, adjust the charge relief valve. Adjust the charge relief valve by turning the adjustment screw clockwise or counterclockwise accordingly. Run the pump for at least 5 minutes to raise the temperature of the oil and purge the system of air.

    Note: The pump has two separate solenoids. Test one solenoid at a time, then repeat steps 2 through 5 of the Test Procedure to test the other solenoid.

    Note: Some pumps require auxiliary pressure supplied to (Y) control pressure port (77). Refer to the specifications table for your pump in the Test Specifications section of this document to determine if auxiliary pressure is required. If there is no mention of (Y) control pressure in the specifications table, the pump will not require auxiliary pressure. Refer to Illustration 8 for locating the (Y) control pressure port (77) if necessary.

  2. Slowly increase the pump RPM to the value in Step 2 of the Test Specifications. Increase the signal current to solenoid (50) or (56) according to the value in Step 2 of the Test Specifications. This is the point of upstroke of the pump. The pump operation or the control of the signal pressure may not be operating properly if the actual discharge flow is not correct.

    Note: Some flow meters may not be able to read discharge flows at this level. Slowly increase signal current to a value that is higher than the value in Step 2 of the Test Specifications if the flow meter does not register the flow. Continue until the flow begins to register.

  3. Increase the signal current to (50) or (56) to the value in Step 3 of the Test Specifications. The pump should be fully upstroked at this time. Record actual pump flow. The pump or the control for the proportional solenoid valve may not be mechanically feasible if the actual flow is not equal to the value in Step 3 of the Test Specifications.

  4. Increase pump discharge pressure to the value in Step 4 of the Test Specifications. Measure pump leakage at this point. Calculate the total loss. The pump may not be mechanically feasible if the total loss is higher than the allowable value in Step 4 of the Test Specifications.

    Subtract the discharge flow that was recorded in Step 4 of the Test Procedure from the discharge flow that was recorded in Step 3 of the Test Procedure to find the total loss.

    Example: "Step 3 flow" 162 L/min (42.8 US gpm) - "Step 4 flow" 158 L/min (41.7 US gpm) = "total loss" 4 L/min (1.1 US gpm). The "max. allowable loss" is 7.2 L/min (1.9 US gpm).

    The pump in the example is acceptable because the actual total loss is less than the maximum allowable loss.

    ------ WARNING! ------

    Pump test pressures in this guideline may exceed the normal operating range of the hydraulic test hoses utilized when connecting the tested pump to the test bench. However, the order of magnitude of these pressures is significantly below the burst strength of the Caterpillar XT6 product.

    High pressure oil can escape through improperly assembled hoses and fittings. High pressure oil can also escape through poorly maintained hoses and fittings. High pressure oil may also leak through hose that has become damaged over the life of the hose due to the pressure levels that occur during test bench operation.

    Personal injury or death can result during adjustment of the high pressure relief valve if recommended hose maintenance practices are not followed. Escaping fluid under pressure can penetrate body tissue causing serious injury, and possible death.

    Adjustment of the high pressure cut or pressure override valve shall only be performed when the pump is operating at a zero discharge pressure condition. Continuation of the pump test procedure can be resumed when this high pressure adjustment is completed.


  5. Slowly increase the pumps discharge pressure to the value in Step 5 of the Test Specifications. If the actual discharge pressure is not within the specification, then turn the adjustment screw for high pressure cut (60) until the actual high-pressure cut value is equal to the value in Step 5 of the Test Specifications. The discharge flow should be zero when the high-pressure cut is reached.

Repeat Steps 2 through 5 of the Test Procedure by connecting the power supply to the opposite connector for electrical solenoid (50) or (56).

------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.


Reduce RPM and all pressures to zero. Remove the component from the test bench. Drain the oil from the pump. Cap all ports or plug all ports.

Note: Crossover relief valves are not preset from factory. If crossover relief valves are replaced, they must be adjusted while installed on the machine. See Testing and Adjusting manual for specific machine.

Test Specifications

Table 3
Part Number  _________________________ 
Rotation  _________________________ 
Step  1  2  3  4  5 
RPM  _________________________  _________________________  _________________________  _________________________  _________________________ 
Signal Current mA  _________________________  _________________________  _________________________  _________________________  _________________________ 
Discharge Pressure kPa (psi)  _________________________  _________________________  _________________________  _________________________  _________________________ 
Discharge Flow liter per minute (gpm)  _________________________  _________________________  _________________________  _________________________  _________________________ 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  _________________________ 
Charge Pressure kPa (psi)  _________________________  _________________________  _________________________  _________________________  _________________________ 
Auxiliary Charge Flow liter per minute (gpm)  _________________________  _________________________  _________________________  _________________________  _________________________ 

Table 4
Part Number  109-5752 
Canceled replaced by 146-1781 

Table 5
Part Number  109-5754 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  800 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2820 (409) (1)  2820 (409)(1)  2820 (409)(1)  37260 (5400)  41400 (6000) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.3) 
Charge Pressure kPa (psi)  2820 (409)  2820 (409  2820 (409)  2820 (409)  2820 (409) 
Auxiliary Charge Flow liter per minute (gpm)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External) 
(1) Discharge pressure equals charge pressure.

Table 6
Part Number  137-5787 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2300 (333.6)(1)  2300 (333.6)(1)  2300 (333.6)(1)  35550 (5150)  39500 (5730) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.3) 
Charge Pressure kPa (psi)  2300 (333.6)  2300 (333.6)  2300 (333.6)  2300 (333.6)  2300 (333.6) 
Auxiliary Charge Flow liter per minute (gpm)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External) 
(1) Discharge pressure equals charge pressure

Table 7
Part Number  137-5788 
Canceled replaced by 146-1781 

Table 8
Part Number  146-1781 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2820 (409)(1)  2820 (409)(1)  2820 (409)(1)  32850 (4760)  36500 (5290) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (47.6)  180 (47.6) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  7.2 (1.9) 
Charge Pressure kPa (psi)  2820 (409)  2820 (409)  2820 (409)  2820 (409)  2820 (409) 
Auxiliary Charge Flow lpm (gpm)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External) 
(1) Discharge pressure equals charge pressure.

Table 9
Part Number  156-7034 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  500 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2500 (362)(1)  2500 (362)(1)  2500 (362) (1)  35400 (5100)  39300 (5700) 
Discharge Flow liter per minute (gpm)  1 (0.26)  250 (66)  250 (66) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  10 (2.6) 
Charge Pressure kPa (psi)  2500 (362)  2500 (362  2500 (362)  2500 (362)  2500 (362) 
Auxiliary Charge Flow liter per minute (gpm)  52.4 (13.8) (External)  52.4 (13.8) (External)  52.4 (13.8) (External)  52.4 (13.8) (External)  52.4 (13.8) (External) 
(1) Discharge pressure equals charge pressure

Table 10
Part Number  162-9592 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2300 (333.6)(1)  2300 (333.6)(1)  2300 (333.6)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.3) 
Charge Pressure kPa (psi)  2300 (333.6)  2300 (333.6)  2300 (333.6)  2300 (333.6)  2300 (333.6) 
Auxiliary Charge Flow liter per minute (gpm)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External) 
(1) Discharge pressure equals charge pressure

Table 11
Part Number  176-1745 
See Part Numbers 199-1062 and 199-1064 

Table 12
Part Number  176-1746 
See Part Numbers 199-1062 and 199-1063 

Table 13
Part Number  180-0459 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2000 (290)(1)  2000 (290)(1)  2000 (290)(1)  41400 (6000)  46000 (6700) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  2.84 (0.75) 
Charge Pressure kPa (psi)  2000 (290)  2000 (290  2000 (290)  2000 (290)  2000 (290) 
Auxiliary Charge Flow liter per minute (gpm)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External) 
(1) Discharge pressure equals charge pressure

Table 14
Part Number  194-3253 
See Part Number 269-3128 

Table 15
Part Number  198-5477 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  3000 (435)(1)  3000 (435)(1)  3000 (435)(1)  36000 (5220)  40000 (5800) 
Discharge Flow liter per minute (gpm)  1 (0.26)  90 (23.78)  90 (23.78) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  6.3 (1.6) 
Charge Pressure kPa (psi)  3000 (435)  3000 (435)  3000 (435)  3000 (435)  3000 (435) 
Charge Flow liter per minute (gpm)  15.5 (4.1) (Internal)  19.6 (5.18) (Internal)  19.6 (5.18) (Internal)  19.6 (5.18) (Internal)  19.6 (5.18) (Internal) 
(1) Discharge pressure equals charge pressure

Table 16
Part Number  199-1062 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1605  1605  1605 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6400) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 17
Part Number  199-1063 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1650  1650  1650 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6400) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 18
Part Number  199-1064 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1650  1650  1650 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6400) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 19
Part Number  202-7850 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2000 (290)(1)  2000 (290)(1)  2000 (290)(1)  41400 (6000)  46000 (6870) 
Discharge Flow liter per minute (gpm)  1 (0.26)  90 (23.8)  90 (23.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  6.3 (1.6) 
Charge Pressure kPa (psi)  2000 (290)  2000 (290)  2000 (290)  2000 (290)  2000 (290) 
Auxiliary Charge Flow liter per minute (gpm)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External)  19.6 (5.2) (External) 
(1) Discharge pressure equals charge pressure

Table 20
Part Number  203-6568 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2750 (399)(1)  2750 (399)(1)  2750 (399)(1)  36900 (5350)  41000 (5950) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (47.6)  180 (47.6) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  12.6 (3.5) 
Charge Pressure kPa (psi)  2750 (399)  2750 (399)  2750 (399)  2750 (399)  2750 (399) 
Charge Flow liter per minute (gpm)  31.8 (8.4) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  23.8 (6.3) (Internal) 
(1) Discharge pressure equals charge pressure

Table 21
Part Number  205-1823 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  400  1600  1600  1600 
Discharge Pressure kPa (psi)  2750 (400)(1)  2750 (400)(1)  2750 (400)(1)  37350 (5400)  41000 (5950) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33)Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  2750 (400)  2750 (400)  2750 (400)  2750 (400)  2750 (400) 
Charge Flow liter per minute (gpm)  18.9 (5.0) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  14.4 (3.8) (Internal) 
(1) Discharge pressure equals charge pressure

Table 22
Part Number  214-1093 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  400  1600  1600  1600 
Discharge Pressure kPa (psi)  2890 (420)(1)  2890 (420)(1)  2890 (420)(1)  37900 (3500)  42100 (6100) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (47.6)  180 (47.6) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  12.6 (3.5) 
Charge Pressure kPa (psi)  2890 (420)  2890 (420)  2890 (420)  2890 (420)  2890 (420) 
Charge Flow liter per minute (gpm)  31.8 (8.4) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  23.8 (6.3) (Internal) 
(1) Discharge pressure equals charge pressure

Table 23
Part Number  221-3667 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1605  1605  1605 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  11.7 (3.1) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal) 
(1) Discharge pressure equals charge pressure

Table 24
Part Number  221-3668 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1605  1605  1605 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow lpm (gpm)  11.7 (3.1) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal) 
(1) Discharge pressure equals charge pressure

Table 25
Part Number  221-3669 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1650  1650  1650 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  11.7 (3.1) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal)  14.9 (4) (Internal) 
(1) Discharge pressure equals charge pressure

Table 26
Part Number  233-6702 
Rotation  CW 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  3000 (435)(1)  3000 (435)(1)  3000 (435)(1)  37800 (5500)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.3) 
Charge Pressure kPa (psi)  3000 (435)  3000 (435)  3000 (435)  3000 (435)  3000 (435) 
Charge Flow liter per minute (gpm)  22.7 (6.0) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal) 
(1) Discharge pressure equals charge pressure

Table 27
Part Number  236-4668 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1605  1605  1605 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 28
Part Number  236-4669 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1650  1650  1650 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 29
Part Number  236-4671 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1650  1650  1650 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  39600 (5750)  44000 (6380) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  8.7 (2.3) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal)  11.1 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 30
Part Number  243-0103 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  800 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  3000 (435)(1)  3000 (435)(1)  3000 (435)(1)  37800 (5480)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute(gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  3000 (435)  3000 (435)  3000 (435)  3000 (435)  3000 (435) 
Charge Flow liter per minute (gpm)  49 (13.0) (Internal)  62 (16.3) (Internal)  62 (16.3) (Internal)  62 (16.3) (Internal)  49 (13.0) (Internal) 
(1) Discharge pressure equals charge pressure

Table 31
Part Number  249-8600 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  36900 (5350)  41000 ± 500 (5945 ± 73) 
Discharge Flow liter per minute (gpm)  1 (0.26)  49 (12.9)  49 (12.9) Max 
(Y) Control Pressure kPa (psi)  2500 (360)  2500 (360)  2500 (360)  2500 (360)  2500 (360) 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  9 (2.3) (Internal)  11.2 (2.9) (Internal)  11.2 (2.9) (Internal)  11.2 (2.9) (Internal)  11.2 (2.9) (Internal) 
(1) Discharge pressure equals charge pressure

Table 32
Part Number  254-1379 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  800 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2650 (385)(1)  2650 (385) (1)  2650 (385)(1)  37000 (5400)  41150 (5968) 
Discharge Flow liter per minute (gpm)  1 (0.26)  40.1 (10.6)  40.1 (10.6) 
Pump Loss Efficiency liter per minute(gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  3 (0.8) 
Charge Pressure kPa (psi)  2650 (385)  2650 (385)  2650 (385)  2650 (385)  2650 (385) 
Charge Flow liter per minute (gpm)  6.9 (1.8) (Internal)  8.6 (2.3) (Internal)  8.6 (2.3) (Internal)  8.6 (2.3) (Internal)  6.9 (1.8) (Internal) 
(1) Discharge pressure equals charge pressure

Table 33
Part Number  264-3172 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  800 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  3000 (435)(1)  3000 (435)(1)  3000 (435)(1)  39000 (5650)  43300 (6280) 
Discharge Flow liter per minute (gpm)  1 (0.26)  250 (65.8)  250 (65.8) Max 
Pump Loss Efficiency liter per minute(gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  18 (5) 
Charge Pressure kPa (psi)  3000 (435)  3000 (435)  3000 (435)  3000 (435)  3000 (435) 
Charge Flow liter per minute (gpm)  42 (11) (Internal)  52 (13.8) (Internal)  52 (13.8) (Internal)  52 (13.8) (Internal)  42 (11) (Internal) 
(1) Discharge pressure equals charge pressure

Table 34
Part Number  264-5069 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2000 (290)(1)  2000 (290)(1)  2000 (290)(1)  36900 (5350)  41000 (5946) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  2000 (290)  2000 (290)  2000 (290)  2000 (290)  2000 (290) 
Auxiliary Charge Flow liter per minute (gpm)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External)  28.3 (7.5) (External) 
(1) Discharge pressure equals charge pressure

Table 35
Part Number  269-3128 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  38250 (5550)  42500 (6165) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1.0) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Auxiliary Charge Flow lpm (gpm)  11.6 (3) (External)  11.6 (3) (External)  11.6 (3) (External)  11.6 (3) (External)  11.6 (3) (External) 
(1) Discharge pressure equals charge pressure

Table 36
Part Number  320-8637 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500 ± 100  1500 ± 100  1500 ± 100 
Discharge Pressure kPa (psi)  3200 (465)(1)  3200 (465)(1)  3200 (465)(1)  37800 (5500)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.7)  56 (14.7) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4(1.0) 
Charge Pressure kPa (psi)  3200 (465)  3200 (465)  3200 (465)  3200 (465)  3200 (465) 
Auxiliary Charge Flow liter per minute (gpm)  12.1 (3.2) (Internal)  15.5 (4.0) (Internal)  15.5 (4.0) (Internal)  15.5 (4.0) (Internal)  15.5 (4.0) (Internal) 
(1) Discharge pressure equals charge pressure

Table 37
Part Number  325-9773 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5500)  42000 ± 1000 (6090 ± 145) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) Max 
Pump Loss Efficiency lpm (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  15.7 (4.1) (Internal)  19.6 (4) (Internal)  19.6 (4) (Internal)  19.6 (4) (Internal)  19.6 (4) (Internal) 
(1) Discharge pressure equals charge pressure

Table 38
Part Number  325-9788 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2900 ± 100 (421 ± 15)(1)  2900 ± 100 (421 ± 15)(1)  2900 ± 100 (421 ± 15)(1)  37800 (5500)  42000 ± 1000 (6090 ± 145) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33)Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  2900 ± 100 (421 ± 15)  2900 ± 100 (421 ± 15)  2900 ± 100 (421 ± 15)  2900 ± 100 (421 ± 15)  2900 ± 100 (421 ± 15) 
Charge Flow liter per minute (gpm)  22.6 (5.0) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  28.3 (7.5) (Internal)  17.0 (4.5) (Internal) 
(1) Discharge pressure equals charge pressure

Table 39
Part Number  333-7827 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2900(420)(1)  2900(420)(1)  2900(420)(1)  37800 (5480)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (47.6)  180 (47.6) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  13 (3.5) 
Charge Pressure kPa (psi)  2900(420)  2900(420)  2900(420)  2900(420)  2900(420) 
Charge Flow liter per minute (gpm)  31.8 (8.4) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  39.8 (10.5) (Internal)  23.8 (6.3) (Internal) 
(1) Discharge pressure equals charge pressure

Table 40
Part Number  340-2106 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  3100 (450)(1)  3100 (450)(1)  3100 (450)(1)  36900 (5350)  41000 ± 1000 (5945 ± 145) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  3100 (450)  3100 (450)  3100 (450)  3100 (450)  3100 (450) 
Charge Flow liter per minute (gpm)  22.4 (5.9) (External)  28 (7.4) (External)  28.3 (7.4) (External)  28 (7.4) (External)  16.80 (4.4) (External) 
(1) Discharge pressure equals charge pressure

Table 41
Part Number  355-2401 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  3100 (450)(1)  3100 (450)(1)  3100 (450)(1)  36900 (5350)  41000 ± 1000 (5945 ± 145) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  3100 (450)  3100 (450)  3100 (450)  3100 (450)  3100 (450) 
Charge Flow liter per minute (gpm)  22.4 (5.9) (External)  28 (7.4) (External)  28.3 (7.4) (External)  28 (7.4) (External)  16.80 (4.4) (External) 
(1) Discharge pressure equals charge pressure

Table 42
Part Number  358-5018 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  2000  2000  2000  2000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2650±100 (384±15)(1)  2650±100 (384±15)(1)  2650±100 (384±15)(1)  37000 (5350)  41150 (5970) 
Discharge Flow liter per minute (gpm)  1 (0.26)  80 (21)  80 (21) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  6 (1.5) 
Charge Pressure kPa (psi)  2650±100 (384±15)  2650±100 (384±15)  2650±100 (384±15)  2650±100 (384±15)  2650±100 (384±15) 
Charge Flow liter per minute (gpm)  6.9 (1.8) (Internal)  17.2 (4.5) (Internal)  17.2 (4.5) (Internal)  17.2 (4.5) (Internal)  17.2 (4.5) (Internal) 
(1) Discharge pressure equals charge pressure

Table 43
Part Number  397-9562 
Rotation  1  2  3  4  5 
Step  Clockwise 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5480)  42000 (6163) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  15.6 (4.1) (External)  19.6 (5.1) (External)  19.6 (5.1) (External)  19.6 (5.1) (External)  19.6 (5.1) (External) 
(1) Discharge pressure equals charge pressure

Table 44
Part Number  424-4483 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5480)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  15.6 (4.1)  19.6 (5.1)  19.6 (5.1)  19.6 (5.1)  19.6 (5.1) 
(1) Discharge pressure equals charge pressure

Table 45
Part Number  453-3635 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  500  1500  1500  1500 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5480)  42000 (6090) 
Discharge Flow liter per minute (gpm)  1 (0.26)  71 (18.8)  71 (18.8) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  5 (1.5) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  15.6 (4.1)  19.6 (5.1)  19.6 (5.1)  19.6 (5.1)  19.6 (5.1) 
(1) Discharge pressure equals charge pressure

Table 46
Part Number  465–2611 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  3100 (460)(1)  3100 (460)(1)  3100 (460)(1)  31050 (4600)  34500 (5000) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  3100 (460)  3100 (460)  3100 (460)  3100 (460)  3100 (460) 
Charge Flow liter per minute (gpm)  22.5 (6)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5) 
(1) Discharge pressure equals charge pressure

Table 47
Part Number  465–2612 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2400 (350)(1)  2400 (350)(1)  2400 (350)(1)  31050 (4600)  34500 (5000) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  2400 (350)  2400 (350)  2400 (350)  2400 (350)  2400 (350) 
Charge Flow liter per minute (gpm)  22.5 (6)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5) 
(1) Discharge pressure equals charge pressure

Table 48
Part Number  465–2613 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2400 (350)(1)  2400 (350)(1)  2400 (350)(1)  31050 (4600)  34500 (5000) 
Discharge Flow liter per minute (gpm)  1 (0.26)  125 (33)  125 (33) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  9 (2.5) 
Charge Pressure kPa (psi)  2400 (350)  2400 (350)  2400 (350)  2400 (350)  2400 (350) 
Charge Flow liter per minute (gpm)  22.5 (6)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5)  28.5 (7.5) 
(1) Discharge pressure equals charge pressure

Table 49
Part Number  465–2614 
Rotation  Clockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  1000 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2800 (425)(1)  2800 (425)(1)  2800 (425)(1)  31050 (4600)  34500 (5000) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (48)  180 (48) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  13 (3.5) 
Charge Pressure kPa (psi)  2800 (425)  2800 (425)  2800 (425)  2800 (425)  2800 (425) 
Charge Flow liter per minute (gpm)  32 (8.5)  39.9 (10.5)  39.9 (10.5)  39.9 (10.5)  39.9 (10.5) 
(1) Discharge pressure equals charge pressure

Table 50
Part Number  475-6744 
See Part Numbers 498–1485 and 498-1486 

Table 51
Part Number  498-1485 
Rotation  CW 
Step 
RPM  800  1000  1000  1000  1000 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5550)  42500 (6150) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  12 (3)  15.1 (4) (External)  15.1 (4) (External)  15.1 (4) (External)  15.1 (4) (External) 
(1) Discharge pressure equals charge pressure

Table 52
Part Number  498-1486 
Rotation  CW 
Step 
RPM  800  1000  1000  1000  1000 
Signal Current mA  400  1200  1200  1200 
Discharge Pressure kPa (psi)  2500 (363)(1)  2500 (363)(1)  2500 (363)(1)  37800 (5550)  42500 (6150) 
Discharge Flow liter per minute (gpm)  1 (0.26)  56 (14.8)  56 (14.8) 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  4 (1) 
Charge Pressure kPa (psi)  2500 (363)  2500 (363)  2500 (363)  2500 (363)  2500 (363) 
Charge Flow liter per minute (gpm)  12 (3)  15.1 (4) (Internal)  15.1 (4) (Internal)  15.1 (4) (Internal)  15.1 (4) (Internal) 
(1) Discharge pressure equals charge pressure

Table 53
Part Number  6E-5845 
Rotation  Counterclockwise 
Step  1  2  3  4  5 
RPM  800  1000  1000  1000  600 
Signal Current mA  200  600  600  600 
Discharge Pressure kPa (psi)  2820 (409)(1)  2820 (409)(1)  2820 (409)(1)  32850 (4750)  36500 (5295) 
Discharge Flow liter per minute (gpm)  1 (0.26)  180 (47.6)  180 (47.6) Max 
Pump Loss Efficiency liter per minute (gpm)  Subtract the actual Step 4 Discharge Flow from the actual Step 3 Discharge Flow. This is the Total Loss.  12.6 (3.5) 
Charge Pressure kPa (psi)  2820 (409)  2820 (409)  2820 (409)  2820 (409)  2820 (409) 
Charge Flow liter per minute (gpm)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External)  39.8 (10.5) (External) 
(1) Discharge pressure equals charge pressure

Test Bench Tooling

Table 54
Tooling 
Pump Number  109-5752  109-5754  137-5787  137-5788  146-1781  156-7034  162-9592  176-1745 
Gauge Port for Charge Pressure (64)  Canceled replaced by 146-1781  9/16-18STOR  7/8-14 STOR  Canceled replaced by 146-1781  7/8-14STOR  9/16-18STOR  7/8-14STOR  See Part Numbers 199-1062 and 199-1064 
Gauge Port for Stroking Pressure (58)  9/16-18STOR 9/16-18STOR  9/16-20STOR  9/16-18STOR 9/16-20STOR 
Pump Discharge Gauge Ports  7/16-20STOR 7/16-20STOR  7/16-20STOR  9/16-18STOR 7/16-18STOR 
Case Drain Port  1 5/16-12STOR 1 5/16-12STOR  1 5/16-12STOR  1 5/8-12STOR 1 5/16-12STOR 
Charge Pump Discharge Port  - -
Charge Pump Return Port  1 5/16-12STOR 1 5/16-12STOR  1 5/16-12STOR  1 5/16-12STOR M26 x 1.5 
Split Flange  1P-5767 1P-5767  1P-5767  2T-3000 1P-5767 
Flange Adapter  9U-7440 1U-9872  9U-7440  9U-7441 9U-7441 
Mounting Plate  1U-9129 1U-9129  1U-9129  1U-9129 1U-9129 
Drive Adapter  1U-9835 1U-9835  1U-9835  1U-9835 1U-9835 

Table 55
Tooling 
Pump Number  176-1746  180-0459  194-3253  198-5477  199-1062  199-1063  199-1064  202-7850 
Gauge Port for Charge Pressure (64)  See Part Numbers 199-1062 and 199-1063  7/8-14STOR  See Part Number 269-3128  3/4-16STOR  7/16-20STOR  7/16-20STOR  7/16-20STOR  3/4-16STOR 
Gauge Port for Stroking Pressure (58)  7/16-20STOR 7/16-20STOR  7/16-20STOR 7/16-20STOR  7/16-20STOR  7/16-20STOR 
Pump Discharge Gauge Ports  7/16-18STOR 3/4-16STOR  7/16-20STOR 7/16-20STOR  7/16-20STOR  7/16-20STOR 
Case Drain Port  1 5/16-12STOR 1 1/16-12STOR  1 1/16-12STOR 1 1/16-12STOR  1 1/16-12STOR  1 1/16-12STOR 
Charge Pump Discharge Port  - 7/8-14STOR  3/4-18STOR 3/4-18STOR  3/4-18STOR 
Charge Pump Return Port  M26 x 1.5 7/8-14STOR  3/4-18STOR 3/4-18STOR  3/4-18STOR  7/8-14STOR 
Split Flange  1P-5767 1P-5766  1P-5765 1P-5765  1P-5765  1P-5767 
Flange Adapter  9U-7440 9U-7439  9U-7438 9U-7438  9U-7438  9U-7440 
Mounting Plate  1U-9129 1U-9128  1U-9128 1U-9128  1U-9128  1U-9128 
Drive Adapter  133-2329 1U-9838  133-2329 1U-9834  1U-9834  133-2329 

Table 56
Tooling 
Pump Number  203-6568  205-1823  214-1093  221-3667  221-3668  221-3669 
Gauge Port for Charge Pressure (64)  7/8-14STOR  7/8-14STOR  7/8-14STOR  3/4-16STOR  3/4-16STOR  3/4-16STOR 
Gauge Port for Stroking Pressure (58)  9/16-18STOR  9/16-18STOR  9/16-18STOR  7/16-20STOR  7/16-20STOR  7/16-20STOR 
Pump Discharge Gauge Ports  7/16-20STOR  7/16-20STOR  7/16-20STOR  3/4-16STOR  3/4-16STOR  3/4-16STOR 
Case Drain Port  1 5/8-12STOR  1 5/16-12STOR  1 5/8-12STOR  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12STOR 
Charge Pump Discharge Port  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12STOR  7/8-14STOR  7/8-14STOR  7/8-14STOR 
Charge Pump Return Port  1 1/16-12STOR  7/8-14STOR  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12STOR 
Split Flange  1P-5767  1P-5767  1P-5767  1P-5766  1P-5766  1P-5766 
Flange Adapter  9U-7440  9U-7440  9U-9129  9U-7439  9U-7439  9U-7439 
Mounting Plate  1U-9129  1U-9129  1U-9835  1U-9128  1U-9128  1U-9128 
Drive Adapter  1U-9835  1U-9835  1U-9835  133-2329  1U-9834  1U-9834 

Table 57
Tooling 
Pump Number  233-6702  236-4668  236-4669  236-4671  243-0103  249-8600  254-1379 
Gauge Port for Charge Pressure (64)  7/8-14 STOR  9/16-18 STOR  9/16-18 STOR  9/16-18 STOR  7/8-14 STOR  9/16-18 STOR  7/16-20 STOR 
Gauge Port for Stroking Pressure (58)  9/16-18 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  9/16-18 STOR  7/16-20 STOR  7/16-20 STOR 
Pump Discharge Gauge Ports  7/16-18 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR 
Case Drain Port  1 5/16-12 STOR  1 1/16-12 STOR  1 1/16-12 STOR  1 1/16-12 STOR  1 5/16-12 STOR  1 1/16-12 STOR  7/8-14 STOR 
Charge Pump Discharge Port  7/8 14 STOR  3/4-18 STOR  3/4-18 STOR  3/4-18 STOR  1 5/16-12 STOR  3/4-18 STOR  3/4-16 STOR 
Charge Pump Return Port  M26 x 1.5  3/4-18 STOR  3/4-18 STOR  3/4-18 STOR  1 5/16-12 STOR  3/4-18 STOR  3/4-16 STOR 
Split Flange  1P-5767  1P-5765  1P-5765  1P-5765  1P-5767  1P-5765  1P-5765 
Flange Adapter  9U-7440  9U-7438  9U-7438  9U-7438  9U-7440  9U-7438  9U-7438 
Mounting Plate  1U-9128  1U-9128  1U-9128  1U-9128  1U-9129  1U-9128  1U-9128 
Drive Adapter  1U-9834  133-2329  131-6452  131-6452  1U-9835  131-6452  1U-9834 

Table 58
Tooling 
Pump Number  264-3172  264-5069  269-3128  320-8637 
Gauge Port for Charge Pressure (64)  9/16-18 STOR  7/8-14 STOR  9/16-18 STOR  9/16-18 STOR 
Gauge Port for Stroking Pressure (58)  9/16-18 STOR  9/16-20STOR  7/16-20STOR  7/16-20 STOR 
Pump Discharge Gauge Ports  9/16-18 STOR  3/4-16STOR  7/16-20STOR  7/16-20 STOR 
Case Drain Port  1 5/8-12 STOR  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12 STOR 
Charge Supply  1 1/16-12STOR   
Charge Pump Discharge Port  1 5/16-12 STOR  3/4-16 STOR 
Charge Pump Return Port  1 5/16-12 STOR  3/4-16STOR  3/4-16 STOR 
Pump Discharge Ports  2T-3000  1P-5766  1P-5765  1P-5765 
Flange Adapter  9U-7441  9U-7439  9U-7438  9U-7438 
Mounting Plate  1U-9128  1U-9128  1U-9128  1U-9128 
Drive Adapter  1U-9835  1U-9834  133-2329  133-2329 

Table 59
Tooling 
Pump Number  325-9773  325-9788  333-7827  340-2106  355-2401  358-5018 
Gauge Port for Charge Pressure (64)  3/4-16 STOR  7/8-14 STOR  7/8-14 STOR  7/8-14 STOR  7/8-14 STOR  7/16-20 STOR 
Gauge Port for Stroking Pressure (58)  7/16-20STOR  9/16-18 STOR  9/16-18 STOR  9/16-18 STOR  9/16-18 STOR  7/16-20 STOR 
Pump Discharge Gauge Ports  3/4-16STOR  7/16-20STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR 
Case Drain Port  1 1/16-12STOR  1 5/16-12STOR  1 5/8-12 STOR  1 5/16-12 STOR  1 5/16-12 STOR  7/8-14STOR 
Charge Supply        1 1/16-12 STOR  1 1/16-12 STOR  1 5/16-12STOR 
Charge Pump Discharge Port  1 1/16-12STOR  1 1/16-12STOR  1 1/16-12 STOR  3/4-16 STOR 
Charge Pump Return Port  1 1/16-12STOR  7/8-14STOR  1 1/16-12 STOR  3/4-16 STOR 
Pump Discharge Ports  1P-5766  1P-5767  1P-5767  1P-5767  1P-5767  8T-9403 
Flange Adapter  9U-7439  9U-7440  9U-7440  9U-7440  9U-7440  9U7438 
Mounting Plate  1U-9128  1U-9129  1U-9129  1U-9129  1U-9129  1U-9128 
Drive Adapter  1U-9834  1U-9835  1U-9835  1U-9835  1U-9835  1U-9834 

Table 60
Tooling 
Pump Number  397-9562  424-4483  475–6744  498–1485  498–1486  453-3635  6E-5845 
Gauge Port for Charge Pressure (64)  3/4/-16 STOR  3/4-16 STOR  See Part Numbers 498–1485 and 498–1486  3/4-16 STOR  9/16–18 STOR  3/4-16 STOR  7/9-14STOR 
Gauge Port for Stroking Pressure (58)  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR 7/16-20 STOR  7/16-20 STOR  9/16-18STOR 
Pump Discharge Gauge Ports  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR 7/16-20 STOR  7/16-20 STOR  9/16-18STOR 
Case Drain Port  1-1/16-12 STOR  1 1/16-12 STOR  1 1/16-12 STOR 1 1/16-12 STOR  1 1/16-12 STOR  1 5/16-12STOR 
Charge Supply  1-1/16-12 STOR  1 5/8-12 STOR  1 5/16–12 STOR  1 5/8-12 STOR   
Charge Pump Discharge Port  7/8-14 STOR  7/8-14 STOR  3/4-16 STOR  7/8-14 STOR 
Charge Pump Return Port  1 1/16-12 STOR  1 1/16-12 STOR  3/4-16 STOR  1 1/16-12 STOR  1 5/16-12STOR 
Pump Discharge Ports  6V-0400  6V-0400  8T-9403 8T-9403  6V-0400  1P-5767 
Flange Adapter  9U-7439  9U-7439  9U-7438 9U-7438  9U-7439  9U-7440 
Mounting Plate  1U-9128  1U-9128  1U-9128 1U-9128  1U-9128  1U-9129 
Drive Adapter  1U-9834  133-2329  1U-9834 326–4012  133-2329  1U-9835 

Table 61
Tooling 
Pump Number  465–2611  465–2612  465–2613  465–2614 
Gauge Port for Charge Pressure (64)  7/8–14 STOR  7/8–14 STOR  7/8–14 STOR  7/8–14 STOR 
Gauge Port for Stroking Pressure (58)  9/16-18 STOR  9/16-18 STOR  9/16-18 STOR  9/16-18 STOR 
Pump Discharge Gauge Ports  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR  7/16-20 STOR 
Case Drain Port  1-5/16-12 STOR  1-5/16-12 STOR  1-5/16-12 STOR  1 5/8–12 STOR 
Charge Pump Discharge Port  M33x2  1-5/16-12 STOR  1-5/16-12 STOR  1 5/16–12 STOR 
Charge Pump Return Port  1 5/16-12 STOR  1 5/16-12 STOR  1 5/16-12 STOR  1 5/16–12 STOR 
Split Flange  2T-3001  2T-3001  2T-3001  2T-3001 
Flange Adapter  9U-7445  9U-7445  9U-7445  9U-7445 
Mounting Plate  1U-9129  1U-9129  1U-9129  1U-9128 
Drive Adapter  1U-9835  1U-9835  1U-9835  1U-9835 

Caterpillar Information System:

330F MHPU Mobile Hydraulic Power Unit Track Adjustment - Adjust - If Equipped
3512C Generator Set Engine Valve Mechanism Cover Base - Remove and Install
Incorrect Announcement of Battery Overcharged On Certain C4.4 and C6.6 Generator Set{4490, 751B} Incorrect Announcement of Battery Overcharged On Certain C4.4 and C6.6 Generator Set{4490, 751B}
3512C Generator Set Engine Crankcase Breather - Remove and Install
3512C Generator Set Engine Engine Oil Pan - Assemble
794 AC Off-Highway Truck Field Assembly Steering Lines - Install
Customer Interface for Certain G3600 A4 Engines {1901, 4490, 7451} Customer Interface for Certain G3600 A4 Engines {1901, 4490, 7451}
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2015/07/07 Timer Rework for Overhead Lights in XQ2000 {1429}
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C8.7 Marine Engine Inlet and Exhaust Valves - Remove and Install
C27 and C32 Industrial Engines Maintenance Interval Schedule
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3512C Generator Set Engine Accessory Drive (Front) - Remove and Install
Rebuild Instructions for the High Temperature Throttle Used on Certain G3500C and G3500E Engines {1269} Rebuild Instructions for the High Temperature Throttle Used on Certain G3500C and G3500E Engines {1269}
794 AC Off-Highway Truck Field Assembly Exhaust - Install
C4.4 and C7.1 Engines Service Tool Features
C27 and C32 Industrial Engines Product Description
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