Hydraulic System Air Check
1900 SRM 97
1.
HYDRAULIC PUMP
2.
INLET PORT
3.
OUTLET PORT
4.
HYDRAULIC TANK
5.
PRESSURE GAUGE
6.
TEE FITTING
7.
NEEDLE VALVE
8.
CONTAINER
9.
TIMER
Figure 12. Hydraulic Pump Output Check
Hydraulic System Air Check
If the pump makes noise or does not move the cor-
rect amount of oil, check for air in the system. Run
the engine until the oil is warm. Remove the filter
head and look into the tank. If there are bubbles in
the oil, air is in the hydraulic system. The most com-
mon place of entry of the air is in the inlet hose to
the pump. Check for air leaks by pouring oil over
the fittings and hose when the engine is running. If
the noise decreases, the leak is in that area. See the
Troubleshooting section for other causes of air in the
hydraulic system.
12
Summary of Contents for D174
Page 1: ...Hyster D174 R30XMS2 Forklift...
Page 6: ...THE QUALITY KEEPERS HYSTER APPROVED PARTS...
Page 23: ......
