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| Illustration 1 | g00304145 |
Note: The 155-5110 Pump is found on the turbocharged engine only. The 155-5109 Pump is found on the naturally aspirated engine. Only the 416C and 428C machines are equipped with naturally aspirated engines. The difference between the two pumps is in the setting of the torque limiters. The torque limiter on the 155-5110 Pump has a setting that is lower than the setting for the torque limiter on the 155-5109 Pump. Refer to Testing and Adjusting, SENR1272 for more information about torque limiters.
When the pump is viewed from the drive end, the rotation of the pump is in a clockwise direction.
Pump type ... variable piston
Displacement of the pump ... 75 cc/rev (4.6 cu in/rev)
Pressure setting ... 20700 ± 350 kPa (3000 ± 50 psi)
While you are testing the pump use SAE 10 oil at 66°C (150.8°F).
Test the pump at full speed.
- engine speed ... 2200 rpm
- pump speed ... 2200 rpm
Output flow ... 156 L/min (41.2 US gpm)
Output pressure ... 20700 ± 350 kPa (3000 ± 50 psi)
Margin pressure ... 2100 ± 100 kPa (305 ± 15 psi)
Low pressure standby ... 3150 kPa (457 psi)
(1) Torque of four head bolts ... 165 ± 30 N·m (120 ± 22 lb ft)
(2) Torque of plug ... 105 ± 10 N·m (80 ± 5 lb ft)
(3) Torque of the locknut on the torque limiter ... 12 ± 3 N·m (9 ± 2 lb ft)