Gear Pump (Pulled Unit Hydraulics and Rear Brake Cooling)
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Illustration 1 | g00290682 |
Rotation of the pump is clockwise when the pump is viewed from the drive end.
Type of pump: Gear
Bench test requirements: SAE 10W oil must be stabilized at 66°C (151°F) before the test is performed.
Drive End
Test at Full Speed:
- Output ... 390 L/min (103 US gpm)
- Test pressure ... 690 kPa (100 psi)
- Test speed of engine ... 1750 rpm
- Test speed of pump ... 1838 rpm
- Output ... 383 L/min (101 US gpm)
- Test pressure ... 6900 kPa (1000 psi)
- Test speed of engine ... 1750 rpm
- Test speed of pump ... 1838 rpm
- Test pressure ... 690 kPa (100 psi)
Test at Half Speed:
- Output ... 192 L/min (51 US gpm)
- Test pressure ... 690 kPa (100 psi)
- Test speed of engine ... 875 rpm
- Test speed of pump ... 919 rpm
- Output ... 178 L/min (47 US gpm)
- Test pressure ... 6900 kPa (1000 psi)
- Test speed of engine ... 875 rpm
- Test speed of pump ... 919 rpm
- Test pressure ... 690 kPa (100 psi)
Cover End
Test at Full Speed:
- Output ... 175 L/min (46 US gpm)
- Test pressure ... 690 kPa (100 psi)
- Test speed of engine ... 1750 rpm
- Test speed of pump ... 1838 rpm
- Output ... 167 L/min (44 US gpm)
- Test pressure ... 6900 kPa (1000 psi)
- Test speed of engine ... 1750 rpm
- Test speed of pump ... 1838 rpm
- Test pressure ... 690 kPa (100 psi)
Test at Half Speed:
- Output ... 80 L/min (21 US gpm)
- Test pressure ... 690 kPa (100 psi)
- Test speed of engine ... 875 rpm
- Test speed of pump ... 919 rpm
- Output ... 76 L/min (20 US gpm)
- Test pressure ... 6900 kPa (1000 psi)
- Test speed of engine ... 875 rpm
- Test speed of pump ... 919 rpm
- Test pressure ... 690 kPa (100 psi)
(1) Torque for eight bolts ... 237 ± 13 N·m (175 ± 10 lb ft)
(2) Torque for eight bolts ... 115 ± 7 N·m (85 ± 5 lb ft)
Note: Assemble the shaft seals with the sealing member that is toward the bushing.
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