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| Illustration 1 | g00867855 |
The pump is a variable displacement piston pump. The pump flow can be reversed.
Rotation is counterclockwise when the rotation is viewed from the drive end.
Maximum displacement per revolution ... 56 cc (3.4 in3)
(1) Pump actuator
(2) Pump control
(3) Torque for two crossover relief valves ... 150 N·m (111 lb ft)
Pressure setting ... 45000 ± 700 kPa (6527 ± 102 psi)
(4) Charge pump
(5) Torque for plug ... 10 N·m (88 lb in)
(6) Pressure compensator valve ... 42000 ± 1000 kPa (6092 ± 145 psi)
(7) Charge pump relief valve ... 2500 ± 300 kPa (363 ± 44 psi)
(8) Torque for three plugs ... 5 N·m (44 lb in)
(9) Torque for four bolts ... 310 N·m (229 lb ft)
Charge Pump
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| Illustration 2 | g00489192 |
Rotation is counterclockwise when the rotation is viewed from the drive end.
The pump type is gear.
For the test, use SAE 10W oil that is at 65 °C (150 °F).
Test at Full Speed
Output flow rate ... 46 L/min (12 US gpm)
Pressure ... 690 kPa (100 psi)
Pump speed ... 2640 rpm
Engine speed ... 2200 rpm
Output flow rate ... 43 L/min (11 US gpm)
Pressure ... 6900 kPa (1000 psi)
Pump speed ... 2640 rpm
Engine speed ... 2200 rpm
Test at Half Speed
Output flow rate ... 23 L/min (6 US gpm)
Pressure ... 690 kPa (100 psi)
Pump speed ... 1320 rpm
Engine speed ... 1100 rpm
Output flow rate ... 20 L/min (5 US gpm)
Pressure ... 6900 kPa (1000 psi)
Pump speed ... 1320 rpm
Engine speed ... 1100 rpm
Pressure Compensator Valve
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| Illustration 3 | g00826441 |
(1) Torque for nut ... 12 N·m (106 lb in)
Pressure setting ... 42000 ± 1000 kPa (6092 ± 145 psi)
Pump Control
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| Illustration 4 | g00867946 |
(1) Torque for 2 nuts ... 10.4 N·m (92 lb in)
(2) Torque for 2 nuts ... 72 N·m (53 lb ft)
(3) Torque for 4 bolts ... 10.4 N·m (92 lb in)
(4) Torque for 8 bolts ... 6.1 N·m (54 lb in)
Pump Actuator
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| Illustration 5 | g00867948 |
(1) Distance (1) ... 8.5 mm (0.335 inch)
(2) Use the correct shim in order to obtain a minimum clearance between seal (3) and retainer (4) .