TM 9-2320-273-20
Item
No.
1
Interval
Semi-
Annual
Item To Be
Inspected
Pre-
Service
Checks
Continued
Procedure
c. Check for transmission response to
shifting and for smoothness of opera-
tion in all speed ranges. Be alert for un-
usual noises and difficulty in shifting in
any speed range.
d. Check for transfer response to
shifting and for smoothness of opera-
tion in all gear ranges. Be alert for un-
usual noises and difficulty in shifting in
any gear range.
e. Test for response to accelerator
feed. Observe for sticking pedal.
f. With vehicle speed approximately 5
mph (8 kph) turn steering wheel to left,
then right, to detect steering backlash,
shimmy or freeplay is more than 1-1/2
inches (38 mm) if either direction. Ve-
hicle should respond instantly. With
vehicle moving on straight, level ter-
rain, lightly hold steering wheel to
check for pull and wandering.
g. Apply brake pedal with steady
force. Vehicle should slow down and
stop without pulling to one side or jerk-
ing. Release brake pedal. The brakes
should release immediately and with-
out difficulty.
h. Observe vehicle response to road
shocks, side sway or continuous
bouncing indicates a malfunction.
Not Mission
Capable If:
c. Transmission
shifts
improperly,
does not shift or
makes
excessive
noises.
d. Transfer jumps
out of gear or makes
excessive noises.
e. Pedal sticking or
binding.
f. Steering binds,
grabs, wanders or
freeplay is more than
1-1/2 inch (38 mm) in
either direction.
g. Brakes chatter,
pull to one side or in-
operative. Brakes will
not release.
h. Handling is unsta-
ble.
3-6 Change 4
Table 3-1. Unit Level Preventive Maintenance Checks And Services M915-M920
