TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 119 of 926
TM 9-2320-283-20-1
Table 2-1.
Unit Level Preventive Maintenance Checks And Services M915A1
Item
Item to
Not Mission
No.
Interval
Be Inspected
Procedure
Capable If:
1
Semi-
Pre-
c.
Check for transmission
c.
Transmission
Annual
Service
response to shifting and for
shifts inprop-
Checks
smoothness of operation in
erly, does not
all speed ranges.
Be alert
shift or makes
Continued for unusual noises and diffi-
excessive
culty in shifting in any
noises.
speed range.
d.
Check for transfer re-
d.
Transfer
sponse to shifting and for
jumps out of
smoothness of operation in
gear or makes
all gear ranges.
Be alert for
excessive
unusual noises and diffi-
noises.
culty in shifting in any gear range.
e.
Test for response to ac-
e.
Pedal stick-
celerator feed.
Observe for
ing or binding.
sticking pedal.
f.
With vehicle speed ap-
f.
Steering
proximately 5 mph (8 kph)
binds, grabs,
turn steering wheel to left,
wanders or
then right, to detect steer-
freeplay is
ing backlash, shimmy or if
more than 1-1/2
freeplay is more than 1-1/2
inch (38 mm) in
inches (38 mm) in either di-
either direc-
rection.
Vehicle should re-
tion.
spond instantly.
With vehi-
cle moving on straight, level
terrain, lightly hold steer-
ing wheel to check for pull
and wandering.
g.
Apply brake pedal with
g.
Brakes chat-
steady force.
Vehicle should
ter, pull to one
slow down and stop without
side or inopera-
pulling to one side or jerk-
tive.
Brakes
ing.
Release brake pedal.
The
will not re-
brakes should release imme-
lease.
diately and without diffi-
culty.
h.
Observe vehicle response
h.
Handling is
to road shocks, side sway or
unstable.
continuous bouncing indicates a
malfunction.
2-6
Change 1
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