Table 1. Operator Preventive Maintenance Checks and Services for M917 Dump Truck Body - Continued.
ITEM TO BE
The automatic bleeder vents air from the
hydraulic cylinder, is completely filled with
oil, and seats automatically. This process
produces an oil mist. A small accumulation
of oil around the bleeder is not necessarily
an indication of a malfunction.
Check hoist cylinder for signs of leakage and Hoist cylinder will
(Figure 14, Item 1) hoist extension scoring. Hoist should operate not raise dump
bed. Class III
smoothly and quietly.
leaks are evident.
Figure 14. Hoist Cylinder.
Pressure is too
Check hydraulic filter for signs of leakage.
high or low. Class
(Figure 15, Item 1)
Check service indication gauge with engine
III leaks are
operating at 1200 rpm and PTO engaged. If
the gauge needle is in or close to the red,
(Figure 15, Item 2)
notify Field Maintenance.
Figure 15. Hydraulic Filter and Service Indication Gauge.