Table 3-1. Unit Level Preventive Maintenance Checks And Services M915-M920
Item To Be
a. Check for damage and proper opera-
a. Improper control
tion of winch assembly.
b. Check and fill gearbox with OE/HDO
b. Class Ill leak evi-
to proper level.
c. Check for proper braking.
d. Inspect winch cables for damage,
kinks, frayed strands, and excessive
a. Check control panel cylinders and
hoses for hydraulic leaks.
b. Check and fill hydraulic fluid reservoir
with OE/HDO to proper level.
Inspect and test the operation of the lock-
Adjust as necessary
Never operate a heater without fluid in
the oil pan, transmission, or engine cool-
a. Plug in 110 VAC power cord to power
source and to receptacle on vehicle cir-
cuit breaker box with vehicle exposed to
+35° F (+1.6° C) or lower.
b. Turn on all four circuit breakers to the
Allow at least 15 minutes, then check for
appropriate heating level.
c. Engine coolant +190° F.
d. Engine oil to +170° F.
e. Transmission oil to +55° F.
f. Battery Box to +55° F.
3-10.16 Change 4