Bench Test Procedure for Hydraulic Piston Pump {3203, 5070} Caterpillar

Asphalt Compactor

CB-534C (S/N: 5HN1-UP; 1WS1-UP)

CB-534D (S/N: EAA1-UP; FEA1-UP; GCA1-UP; FGH1-UP)

CB64 (S/N: CB51-UP; DJM1-UP)

CCS9 (S/N: C521-UP)

Backhoe Loader

426C (S/N: 7WN1-UP)

Paving Compactor

CB-434D (S/N: CNH1-UP; CPR1-UP)

CB-634C (S/N: 3BR1-UP)

CB-634D (S/N: CDF1-UP)

CD54 (S/N: J5R1-UP)

CP-533C (S/N: 3XN1-UP; 3YN1-UP)

CP-533D (S/N: AFC1-UP; 6AZ1-UP)

CP-563C (S/N: 5JN1-UP; 5KN1-UP)

CP-563D (S/N: 9ZW1-UP; 5LZ1-UP)

CS-531D (S/N: AGH1-UP; 4MZ1-UP)

CS-533C (S/N: 2WN1-UP; 2XN1-UP)

CS-533D (S/N: AET1-UP; 5CZ1-UP)

CS-563C (S/N: 4KN1-UP; 4LN1-UP)

CS-563D (S/N: 9MW1-UP; 2RZ1-UP)

CS-573C (S/N: 6LN1-UP)

CS-573D (S/N: CMK1-UP; 2YZ1-UP)

CS-583 (S/N: 8YJ1-UP; 1EL1-UP)

CS-583C (S/N: 7MN1-UP; 7NN1-UP)

CS-583D (S/N: 2CZ1-UP; 3GZ1-UP)

Vibratory Asphalt Compactor

CB54 (S/N: K3J1-UP; JLM1-UP)

CCS7 (S/N: 4B21-UP)

Vibratory Soil Compactor

CP-533E (S/N: BZG1-UP; TLH1-UP; ASM1-UP; DAM1-UP)

CP-563E (S/N: BWE1-UP; CNT1-UP)

CP-573E (S/N: ASY1-UP)

CP44B (S/N: 4P41-UP; GNB1-UP)

CP54 (S/N: C5Y1-UP)

CP54B (S/N: 4831-UP; P541-UP; GP51-UP; PM51-UP; 5061-UP; 5461-UP; P5F1-UP; PFM1-UP; CPX1-UP)

CP56 (S/N: C5P1-UP; FCP1-UP)

CP56B (S/N: 4851-UP; MP61-UP; P561-UP; 4381-UP; 5081-UP; LHC1-UP; M5P1-UP)

CP64 (S/N: P7F1-UP; C6P1-UP)

CP68B (S/N: 5101-UP; 6841-UP; CM61-UP; P681-UP; 4891-UP; LCF1-UP; SDT1-UP)

CP74 (S/N: P8F1-UP)

CP74B (S/N: L7B1-UP)

CS-533E (S/N: BZE1-UP; DAK1-UP; ASL1-UP; TJL1-UP)

CS-563E (S/N: ASA1-UP; CNG1-UP)

CS-573E (S/N: CEB1-UP; CNN1-UP)

CS-583E (S/N: DAJ1-UP; CNX1-UP)

CS10 (S/N: T8F1-UP)

CS11 (S/N: RK81-UP)

CS12 (S/N: GCS1-UP)

CS44B (S/N: CS31-UP; 4G31-UP; RGE1-UP)

CS54 (S/N: C5R1-UP; C5W1-UP)

CS54B (S/N: 4821-UP; G541-UP; 5M41-UP; 5441-UP; CS51-UP; 5051-UP; M5B1-UP; P5B1-UP; MFC1-UP; L4H1-UP)

CS56 (S/N: C5S1-UP; FCS1-UP)

CS56B (S/N: 4841-UP; M561-UP; S561-UP; 4371-UP; 5071-UP; L8H1-UP; M4M1-UP)

CS64 (S/N: C7F1-UP; C6S1-UP)

CS64B (S/N: C641-UP; CW61-UP; DH61-UP; 4861-UP; S4B1-UP)

CS66B (S/N: CS61-UP; S661-UP; 4871-UP)

CS68B (S/N: CS81-UP; M681-UP; 4881-UP; 4391-UP; 5091-UP; MBF1-UP; MMS1-UP)

CS74 (S/N: C8F1-UP; C8S1-UP)

CS74B (S/N: LCB1-UP)

CS78B (S/N: L8C1-UP)

Introduction

Table 1

Revision	Summary of Changes in REHS2266
21	Updated effectivity and added new part number 487-2018 Hydraulic Pump Gp to the document.
20	Updated effectivity.
19	Added new Vibratory Soil Compactor serial number prefixes 4G3, GNB, and RGE to document.
	Added Blank Specifications Table to document.
18	Added new Tandem Vibratory Compactor serial number prefixes C52 and 4B2 to document.

© 2019 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

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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.

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

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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 1	g01084214
Connections for the test center 0 (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 2	g01084216
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 3	g01084217
Connections for the test bench (26) "Flow meter 1" loop and "Flow meter 2" loop (27) Oil supply

Illustration 4	g01084219
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 (33) "Flow meter 1" inlet (34) Auxiliary pump oil supply (35) "Flow meter 1" inlet

Illustration 5	g01084221
Control and gauges for the test bench (36) Auxiliary pump pressure (37) Signal pressure (38) Control for signal pressure (39) "Flow meter 1" discharge pressure (40) Control for auxiliary pump pressure (41) "Flow meter 2" discharge pressure (42) Auxiliary pump flow 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

Port Locations

Illustration 6	g02722947
Typical port locations and adjustments with a charge pump. Port locations may vary slightly. (123-5262, 145-7343, 147-2296, 153-4877, 159-9453, 159-9455) (49) Gauge port for discharge pressure (50) Discharge port for the charge pump (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (57) Charge pump suction port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (64) Adjustment screw for the stroke limiter

Illustration 7	g02723077
Typical port locations and adjustments without a charge pump. Port locations may vary slightly. (122-0014, 123-5261, 153-4867, 153-4880, 164-3168, 196-2246, 270-3949, 270-3951, 284-0431, 284-0432, 315-9743, 353-5928, 357-7413) (49) Gauge port for discharge pressure (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (63) Adjustment screw for pressure over ride (64) Adjustment screw for the stroke limiter

Illustration 8	g02723263
Typical port locations and adjustments without a charge pump. Port locations may vary slightly. (187-3098, 194-1539, 218-8490, 269-7186, 284-5887, 296-3332, 351-8907) (49) Gauge port for discharge pressure (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (64) Adjustment screw for the stroke limiter

Illustration 9	g01396628
Hydraulic schematic for some pumps without a charge pump. (122-0014, 123-5261, 153-4867, 153-4880, 164-3168, 196-2246, 218-8490, 270-3949, 270-3951, 284-0431, 284-0432, 284-5887, 296-3332, 315-9743, 351-8907, 353-5928, 357-7413, 487-2018) (49) Gauge port for discharge pressure (50) Discharge port for the charge pump (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (57) Charge pump suction port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (63) Adjustment screw for pressure over ride (64) Hydraulic zero adjustment (65) Adjustment screw for the stroke limiter

Illustration 10	g01397473
Hydraulic Schematic for pumps with a charge pump. (123-5262, 145-7343, 147-2296, 153-4877, 153-4879, 159-9453, 159-9455) (49) Gauge port for discharge pressure (50) Discharge port for the charge pump (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (57) Charge pump suction port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (63) Adjustment screw for pressure over ride (64) Hydraulic zero adjustment (65) Adjustment screw for the stroke limiter

Illustration 11	g01399876
Hydraulic Schematic for some pumps without a charge pump. (187-3098, 187-3602, 194-1539, 269-7186) (49) Gauge port for discharge pressure (50) Discharge port for the charge pump (51) Gauge port for charge pressure (52) Adjustment screw for mechanical zero (53) Gauge port for stroking pressure (54) Electrical connector for solenoids (55) Discharge port (56) Discharge port (57) Charge pump suction port (58) Case drain (59) Case drain (60) Gauge port for discharge pressure (61) Input for the charge flow (62) Adjustment screw for charge relief valve (63) Adjustment screw for pressure over ride (64) Hydraulic zero adjustment (65) Adjustment screw for the stroke limiter

9U-5902 Rectifier Block

Illustration 12	g01399896
9U-5902 Rectifier Block Connections

Illustration 13	g01396311
9U-5902 Rectifier Block Schematic (66) High-pressure port "from pump discharge" (67) High-pressure outlet "to flow meter loop" (68) High-pressure port "from pump discharge" (69) Low-pressure return "from heat exchanger"

9U-5893 Heat Exchanger

Illustration 14	g01396355
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 15	g01348034
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 1.2 A with an infinite setting in that range.

1. Install pressure taps in the following test ports:

   (53) Gauge port for stroking pressure

   (49) Gauge port for discharge pressure

   (60) Gauge port for discharge pressure

2. Connect the power supply to the connector for electric solenoid (54).

3. Connect pump discharge ports (55) and (56) to the high-pressure ports (66) and (68) on the rectifier block.

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

5. Connect the flow meter outlet port from the test bench to the 9U-5893 Heat Exchanger inlet port (70).

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

7. Connect the 9U-5893 Heat Exchanger water inlet port (72) to the water supply and water outlet port (73) to the water drain.

8. Connect the red transducer 34500 kPa (5000 psi) (75) or 8T-0860 Pressure Gauge to the pump's gauge port for discharge pressure (49) and (60).

   Note: For pumps with a charge pump.

9. Connect the charge pump suction port (57) to the test bench oil supply for pumps with an internal charge pump.

   Note: For pumps without a charge pump.

10. Connect auxiliary pump oil supply to the pump input (61).

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 (58) until the case is completelyfull. Direct flow from case drain port (58) to the reservoir of the test bench.

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 clockwise until the end of motion to control the pump discharge pressure. Start rotating the pump at the value in Step 1 of the Test Specifications. This unit is not equipped with a charge pump. Be sure to sustain charge pump flow to port (61) in Steps 1 through 5 of the Test Specifications. Vent the ports for the stroking pressure (53) to the atmosphere. This will equalize the pressure on the servo spool. Install pressure gauges on ports (49) and (60). If the mechanical zero adjustment is incorrect, a discharge pressure that is higher than the charge pressure may occur.

2. Turn the adjustment screw for the mechanical centering (52) clockwise. Continue to turn until a pressure of 200 psi is reached. Then mark the position of the adjustment screw (52). This pressure may be seen on the gauge port for the system pressure B (49 or 60) or gauge port for the system pressure A (49 or 60).

3. Turn adjustment screw for the mechanical centering (52) counterclockwise until pressure increases to 200 psi at gauge ports (49) or (60). Mark the position of the adjustment screw for the mechanical centering (52).

4. A mark should be placed halfway between position one and position two. Turn the adjustment screw for the mechanical centering (52) to the midpoint of both marks. There should be less than a 34.5 kPa (5 psi) pressure differential between pump gauge ports (49) and (60).

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 (49) and (60).

Test Procedure

Note: The steps in the Test 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 16	g01143458

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. Run the pump for at least five 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. Repeat Steps 2 through 4 to test the other solenoid.

2. Slowly increase the signal current to solenoid (54) 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: If flow does not match the flow given in step 2 of the test specifications, then adjust the stroke limiter adjustment screw (65).

3. Compare the actual discharge flow with the value in Step 2 of the Test Specifications. Increase pump discharge pressure to the value in Step 3 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 3 of the Test Specifications.

   Subtract the discharge flow that was recorded in Step 3 of the Test Procedure from the discharge flow that was recorded in Step 2 of the Test Procedure to find the total loss.

   Note: Step 4 of the Test Procedure will verify the pressure override value. Skip Step 4 of the Test Procedure for pumps without a pressure override valve.

4. Slowly increase the discharge pressure to the value in Step 4 of the Test Specifications. If discharge pressure is not within specification, then turn the adjustment screw for the pressure override (63) until the actual pressure override value is equal to the value in Step 3 of the Test Specifications. The discharge flow should be zero when the pressure override is reached.

   Repeat Steps 1 through steps 4 of the Test Procedure for the other side of the pump.

Show/hide table

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.

Test Specifications

Table 3

Part Number	__________________________
Pump Rotation	__________________________
Step	1	2	3	4
RPM	_______________	_______________	_______________	_______________
Solenoid Current Amps	_______________	_______________	_______________	_______________
Discharge Pressure kPa (psi)	_______________	_______________	_______________	_______________
Discharge Flow from port A lpm (gpm)	_______________	_______________	_______________	_______________
Discharge Flow from port B lpm (gpm)	_______________	_______________	_______________	_______________
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		_______________	_______________
Auxiliary Charge Oil Flow lpm (gpm)	_______________	_______________	_______________	_______________

Table 4

Part Number	122–-0014
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	61.4 (16.2)	61.4 (16.2)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		2.69 (0.7)
Charge Pump Flow lpm (gpm)	15.2 (4.0)	15.2 (4.0)	15.2 (4.0)
Charge Relief Valve kPa (psi)	This pump is not equipped with a charge relief valve.

Table 5

Part Number	123-5261
Pump Rotation	CCW
Canceled Replaced by 153-4880

Table 6

Part Number	123-5262
Pump Rotation	CW
Canceled Replaced by 147-2296

Table 7

Part Number	145-7343
Pump Rotation	CW
Canceled Replaced by 153-4879

Table 8

Part Number	147-2296
Pump Rotation	CW
Canceled Replaced by 153-4877

Table 9

Part Number	153-4867
Pump Rotation	CCW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure Override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	78 (20.6)	78 (20.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.4 (0.9)
Charge Pump Flow lpm (gpm)	8.4 (2.2)	16.8 (4.4)	16.8 (4.4)
Charge Relief Valve kPa (psi)	2800 (406)	2800 (406)	2800 (406)

Table 10

Part Number	153-4877
Pump Rotation	CW
Canceled Replaced by 159-9453

Table 11

Part Number	153-4879
Pump Rotation	CW
Canceled Replaced by 159-9455

Table 12

Part Number	153-4880
Pump Rotation	CCW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	78 (20.6)	78 (20.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.4 (0.9)
Charge Pump Flow lpm (gpm)	8.4 (2.2)	16.8 (4.4)	16.8 (4.4)
Charge Relief Valve kPa (psi)	2800 (406)	2800 (406)	2800 (406)

Table 13

Part Number	159-9453
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	78 (20.6)	78 (20.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.4 (0.9)
Charge Pump Flow lpm (gpm)	8.4 (2.2)	16.8 (4.4)	16.8 (4.4)
Charge Relief Valve kPa (psi)	2800 (406)	2800 (406)	2800 (406)

Table 14

Part Number	159-9455
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	92 (24.3)	92 (24.3)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.1 (1.1)
Charge Pump Flow lpm (gpm)	8.4 (2.2)	16.8 (4.4)	16.8 (4.4)
Charge Relief Valve kPa (psi)	2800 (406)	2800 (406)	2800 (406)

Table 15

Part Number	164-3168
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	116 (30.6)	116 (30.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		5.11 (1.4)
Auxiliary Charge Oil Flow lpm (gpm)	15.2 (4.0)	15.2 (4.0)	15.2 (4.0)
Charge Relief Valve kPa (psi)	This pump is not equipped with a charge relief valve.

Table 16

Part Number	187-3098
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	600 mA	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)	33000 (4790)
Discharge Flow from port A lpm (gpm)	0	66 (17.4)	66 (17.4)	0
Discharge Flow from port B lpm (gpm)	0	84 (22.2)	84 (22.2)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.67 (1.0)
Auxiliary Charge Oil Flow lpm (gpm)	8.8 (2.3)	8.8 (2.3)	8.8 (2.3)	8.8 (2.3)

Table 17

Part Number	187-3602
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	600 mA	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)	33000 (4790)
Discharge Flow lpm (gpm)	0	102 (27)	102 (27)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.5 (1.2)
Auxiliary Charge Oil Flow lpm (gpm)	15.2 (4.0)	15.2 (4.0)	15.2 (4.0)	15.2 (4.0)
Charge Relief Valve kPa (psi)	2500 (365)	2500 (365)	2500 (365)	2500 (365)

Table 18

Part Number	194-1539
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	600 mA	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)	33000 (4790)
Discharge Flow lpm (gpm)	0	66 (17.4)	66 (17.4)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		2.88 (0.8)
Auxiliary Charge Oil Flow lpm (gpm)	9.7 (2.6)	9.7 (2.6)	9.7 (2.6)	9.7 (2.6)
Charge Relief Valve kPa (psi)	This pump is not equipped with a charge relief valve.

Table 19

Part Number	196-2246
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	102 (27)	102 (27)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.5 (1.2)
Auxiliary Charge Oil Flow lpm (gpm)	15.2 (4.0)	15.2 (4.0)	15.2 (4.0)
Charge Relief Valve kPa (psi)	This pump is not equipped with a charge relief valve.

Table 20

Part Number	218-8490
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	83 (22)	83 (22)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.05 (1.1)
Auxiliary Charge Oil Flow lpm (gpm)	49 (13)	49 (13)	49 (13)
Charge Relief Valve kPa (psi)	2500 (365)	2500 (365)	2500 (365)

Table 21

Part Number	269-7186
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	600 mA	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)	33000 (4790)
Discharge Flow from port A lpm (gpm)	0	52 (13.7)	52 (13.7)	0
Discharge Flow from port B lpm (gpm)		66 (17.4)	66 (17.4)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.41 (0.9)	-
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2500 (365)	2500 (365)	2500 (365)	2500 (365)

Table 22

Part Number	270-3949
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	78 (20.6)	78 (20.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.41 (0.9)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 23

Part Number	270-3951
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	92 (24.3)	92 (24.3)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.05 (1.1)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 24

Part Number	284-0431
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow from port A lpm (gpm)	0	70 (18.5)	70 (18.5)
Discharge Flow from port B lpm (gpm)	0	78 (20.6)	78 (20.6)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.4 (0.9)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 25

Part Number	284-0432
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow from port A lpm (gpm)	0	82 (21.7)	82 (21.7)
Discharge Flow form port B lpm (gpm)	0	92 (24.3)	92 (24.3)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.05 (1.1)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 26

Part Number	284-5887
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow From Port A lpm (gpm)	0	77 (20.4)	77 (20.4)
Discharge Flow From Port B lpm (gpm)	0	82.9 (21.9)	82.9 (21.9)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.63 (1.0)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 27

Part Number	296-3332
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow Port A lpm (gpm)	0	77 (20.4)	77 (20.4)
Discharge Flow Port B lpm (gpm)	0	41.6 (11)	83.3 (22)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.63 (.96)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 28

Part Number	315-9743
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow From Port A lpm (gpm)	0	77 (20.4)	77 (20.4)
Discharge Flow From Port B lpm (gpm)	0	82.9 (21.9)	82.9 (21.9)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.63 (1.0)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 29

Part Number	351-8907
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	670 mA	670 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	100 (26.3)	100 (26.3)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4.5 (1.2)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 30

Part Number	353-5928
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	670 mA	670 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	80 (21)	80 (21)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		3.6 (.95)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 31

Part Number	357-7413
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	670 mA	670 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	112 (29.4)	112 (29.4)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		5.1 (1.4)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 32

Part Number	386-5820
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	600 mA	600 mA	600 mA
Discharge Pressure kPa (psi)	0	0	33750 (4890)	37500 (5440)
Discharge Flow lpm (gpm)	0	46 (12)	46 (12)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		4 (1)	0
Auxiliary Charge Oil Flow lpm (gpm)	12.2 (3)	12.2 (3)	12.2 (3)	12.2 (3)
Charge Relief Valve kPa (psi)	1500 (220)	1500 (220)	1500 (220)	1500 (220)

Table 33

Part Number	389-8425
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	This pump is not equipped with a pressure override valve.
Solenoid Current Amps	-	670 mA	670 mA
Discharge Pressure kPa (psi)	0	0	6890 (1000)
Discharge Flow lpm (gpm)	0	110 (29)	110 (29)
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		5.0 (1.3)
Auxiliary Charge Oil Flow lpm (gpm)	11 (2.9)	11 (2.9)	11 (2.9)
Charge Relief Valve kPa (psi)	2000 (290)	2000 (290)	2000 (290)

Table 34

Part Number	487-2018
Pump Rotation	CW
Step	1	2	3	4
RPM	1000	2000	2000	2000
Solenoid Current Amps	-	670 mA	670 mA	670 mA
Discharge Pressure kPa (psi)	0	0	29700 (4300)	33000 (4786)
Discharge Flow lpm (gpm)	0	74 (19.5)	74 (19.5)	0
Pump Loss Efficiency lpm (gpm)	Subtract the actual discharge flow that was measured in Step 2 from the actual discharge flow that was measured in Step 3. This is the Total Loss.		7.4 (1.9)	0
Auxiliary Charge Oil Flow lpm (gpm)	8 (2.1)	8 (2.1)	8 (2.1)	8 (2.1)
Charge Relief Valve kPa (psi)	2400 (350)	2400 (350)	2400 (350)	2400 (350)

Test Bench Tooling

Table 35

Part Number	Mounting Flange	Drive Adapter	Flange Adapter	Split Flange	Case Drain	Charge Pump Discharge Port	Charge Flow Input Port
122-0014	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
123-5261	Canceled Replaced by 153-4880					3/4-16 STOR	3/4-16 STOR
123-5262	Canceled Replaced by 147-2296					3/4-16 STOR	3/4-16 STOR
145-7343	Canceled Replaced by 153-4879					3/4-16 STOR	3/4-16 STOR
147-2296	Canceled Replaced by 153-4877					3/4-16 STOR	3/4-16 STOR
153-4867	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	3/4-16 STOR	3/4-16 STOR
153-4879	Canceled Replaced by 159-9455
153-4877	Canceled Replaced by 153-9453
153-4880	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	3/4-16 STOR	3/4-16 STOR
159-9453	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	3/4-16 STOR	3/4-16 STOR
159-9455	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	3/4-16 STOR	3/4-16 STOR
164-3168	1U-9128	1U-9834	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
187-3098	1U-9127	1U-9834	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
187-3602	1U-9127	1U-9834	9U-7438	1P-5765	7/8-14 STOR	-	9/16-18 STOR
194-1539	1U-9127	1U-9834	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
196-2246	1U-9127	1U-9834	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
218-8490	1U-9127	1U-9834	-	-	7/8-14 STOR	-	3/4-16 STOR
269-7186	1U-9127	326-4012	9U-7438	1P-5765	7/8-14 STOR	3/4-16 STOR	3/4-16 STOR
270-3949	1U-9127	4C-4088	9U-7438	1P-5765	1 1/16-12 STOR	-	3/4-16 STOR
270-3951	1U-9127	4C-4088	9U-7438	1P-5765	1 1/16-12 STOR	-	3/4-16 STOR
284-0431	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
284-0432	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR		3/4-16 STOR
284-5887	1U-9127	1U-9834	1 1/16-12 STOR	-	7/8-14 STOR	-	3/4-16 STOR
296-3332	1U-9127	1U-9834	1 1/16-12 STOR	-	7/8-14 STOR	-	3/4-16 STOR
315-9743	1U-9127	1U-9834	1 1/16-12 STOR	-	7/8-14 STOR	-	3/4-16 STOR
351-8907	1U-9128	1U-9834	1 1/16-12 STOR	-	7/8-14 STOR	-	3/4-16 STOR
353-5928	1U-9127	4C-4088	9U-7438	8T-9403	7/8-14 STOR	-	3/4-16 STOR
357-7413	1U-9128	1U-9834	9U-7438	8T-9403	7/8-14 STOR	-	3/4-16 STOR
386-5820	1U-9127	4C-4088	9U-7438	1P-5765	7/8-14 STOR	-	3/4-16 STOR
389-8425	1U-9128	1U-9834	9U-7438	8T-9403	7/8-14 STOR
487-2018	1U-9127	1U-9834	1 1/16-12 STOR		7/8-14 STOR		1 5/16-12 STOR