TM 9-2320-273-20
Table 3-1. Unit Level Preventive Maintenance Checks And Services M915-M920
Item
Interval
Item To Be
Procedure
Not Mission
No.
inspected
Capable If:
33
Semi-
Winch
a. Check for damage and proper opera-
a. Improper control
Annual
(M916
tion of winch assembly.
response.
and M920
only)
b. Check and fill gearbox with OE/HDO
b. Class Ill leak evi-
to proper level.
dent.
c. Check for proper braking.
d. Inspect winch cables for damage,
kinks, frayed strands, and excessive
wear.
34
Semi-
Winch
a. Check control panel cylinders and
Annual
Control
hoses for hydraulic leaks.
Panel
b. Check and fill hydraulic fluid reservoir
with OE/HDO to proper level.
35
Semi-
5th Wheel
Inspect and test the operation of the lock-
Annual
Assem-
ing mechanism.
Adjust as necessary
blies
(paragraph 11-13).
36
Semi-
Winteriza-
NOTE
Annual
tion Kit
Never operate a heater without fluid in
the oil pan, transmission, or engine cool-
ing system.
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
“ON” position.
NOTE
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
