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| Illustration 1 | g00477609 |
Hydraulic pump (1) Main hydraulic pump (2) Auxiliary hydraulic pump | |
The hydraulic pump consists of main hydraulic pump (1) and auxiliary hydraulic pump (2) .
Main Hydraulic Pump
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| Illustration 2 | g00477613 |
Rotation from drive end ... Clockwise
Pump type ... Piston
Use SAE 10W oil at 65°C (150°F) for testing.
Test at full speed:
Output ... 287 L/min (75.8 US gpm)
Output pressure ... 690 kPa (100 psi)
Pump speed ... 2231 rpm
Engine speed ... 2100 rpm
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Output ... 281 L/min (74.2 US gpm)
Output pressure ... 7000 kPa (1000 psi)
Pump speed ... 2231 rpm
Engine speed ... 2100 rpm
Test at half speed:
Output ... 143 L/min (37.8 US gpm)
Output pressure ... 690 kPa (100 psi)
Pump speed ... 1115 rpm
Engine speed ... 1050 rpm
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Output ... 140 L/min (37.0 US gpm)
Output pressure ... 7000 kPa (1000 psi)
Pump speed ... 1115 rpm
Engine speed ... 1050 rpm
(1) Pressure settings for the compensator valve
- Pressure setting for cutoff ... 29700 ± 700 kPa (4300 ± 100 psi)
- Flow rate at cutoff ... 5 L/min (1.3 US gpm)
- Margin pressure setting ... 2100 ± 700 kPa (300 ± 100 psi)
- Flow rate for margin pressure setting ... 140 ± 5.5 L/min (37 ± 1.5 US gpm)
- Flow rate at cutoff ... 5 L/min (1.3 US gpm)
(2) Torque for plug ... 70 ± 10 N·m (52 ± 7 lb ft)
(3) Put 4C-9507 Retaining Compound on the threads of the piston actuator and tighten the actuator to the following torque. ... 30 ± 7 N·m (22 ± 5 lb ft)
(4) Use shims to obtain the following end play. ... 0.03 to 0.01 mm (0.001 to 0.004 inch)
(5) Put 4C-9507 Retaining Compound on the threads of the nuts and tighten the nuts to the following torque. ... 30 ± 7 N·m (22 ± 5 lb ft)
(6) Tighten eight bolts to the following torque. ... 190 ± 25 N·m (140 ± 18 lb ft)
(7) 9T-4187 Spring
- Free length ... 88.6 mm (3.49 inch)
- Outside diameter ... 60.0 mm (2.36 inch)
(8) 9T-4188 Spring
- Free length ... 86.8 mm (3.42 inch)
- Outside diameter ... 36.0 mm (1.42 inch)
(9) Put 4C-9507 Retaining Compound on the threads of the rod actuator and tighten the rod to the following torque. ... 30 ± 7 N·m (22 ± 5 lb ft)
(10) Put 4C-9507 Retaining Compound on the threads of the bolts and tighten the bolts to the following torque. ... 25 ± 7 N·m (18 ± 5 lb ft)
(11) Use shims to obtain the following slipper clearance. ... 0.01 to 0.03 mm (0.0004 to 0.001 inch)
Compensator Valve
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| Illustration 3 | g00477615 |
Pressure settings for the compensator valve
- Pressure setting for cutoff ... 29700 ± 700 kPa (4300 ± 100 psi)
- Flow rate at cutoff ... 5 L/min (1.3 US gpm)
- Margin pressure setting ... 2100 ± 700 kPa (300 ± 100 psi)
- Flow rate for margin pressure setting ... 140 ± 5.5 L/min (37 ± 1.5 US gpm)
- Flow rate at cutoff ... 5 L/min (1.3 US gpm)
(1) Torque for plug ... 120 ± 15 N·m (89 ± 11 lb ft)
(2) Put 5P-3413 Pipe Sealant on the threads and tighten the plugs to the following torque. ... 6 ± 1 N·m (4 ± 1 lb ft)
(3) Torque for plug ... 120 ± 15 N·m (89 ± 11 lb ft)
(4) Torque for two locknuts ... 25 ± 5 N·m (18 ± 4 lb ft)
(6) 9T-4185 Spring (outside)
- Free length ... 19 mm (0.75 inch)
- Outside diameter ... 14 mm (0.55 inch)
(7) 9T-4189 Spring (inside)
- Free length ... 17.3 mm (0.68 inch)
- Outside diameter ... 7.5 mm (0.30 inch)
(8) 9T-4186 Spring
- Free length ... 45.1 mm (1.78 inch)
- Outside diameter ... 20.0 mm (0.79 inch)
(9) Torque for plug ... 60 ± 10 N·m (44 ± 7 lb ft)
(10) Torque for cap ... 220 ± 25 N·m (160 ± 18 lb ft)
Auxiliary Hydraulic Pump
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| Illustration 4 | g00478312 |
Displacement per revolution ... 0.0367 L (0.0097 US gal)
Maximum pressure ... 20700 kPa (3000 psi)
Maximum speed ... 3100 rpm