SECTION 4 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
3121781
4-61
Gear Pump Priming
The gear pump is mounted with the suction hose up. Air
trapped in this area can cause an air lock on start up.
during this period, the pump is running dry, which can
cause gear wear, which affects the volumetric efficiency
of the pump.
To prime the pump:
1. Fill the hydraulic tank to the full mark.
2. Using a 2 in. wrench, loosen the suction hose fitting
at the gear pump. The hose fitting does not need to
be removed, just loosened enough to let the air
escape.
3. When oil leaks at the hose end, re-torque the hose
end to 115 ft. lb. (Nm). The pump is primed and the
machine is ready to start.
Содержание 530LRT
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