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 TM 10-3930-633-12
M = Monthly
Q = Quarterly
Item to be Inspected
Work
Interval and
Time
Procedure
Sequence No.
(M H)
Q
M
GAGES AND SWITCHES
0.6
7
25
Check all gages and switches for proper operation. Check for cracked or broken glass
on face of gages. Check condition of wiring to all gages, sending units, and switches.
Replace any defective item.
ENGINE
0,3
Change oil and filter as outlined in Chapter 3. Clean crankcase breather. Check for
8
26
evidence of oil or water leakage at head and manifold gaskets.
0.5
Check closely around cylinder head and block mounting surfaces for evidence of
27
gasket leaks, or cracks in the cylinder head. Check cylinder head mounting bolt
torque and correct as required. See Section XIII for procedure.
Adjust valve lash.
1.0
28
TRANSMISSION
0.5
Change transmission fluid and filter as outlined in Chapter 3. Check transmission
29
operation in all ranges.
PROPELLER SHAFT
0.2
Lubricate at fitting on splined shaft. Check for excessive play in shaft, indicating
30
substantial bearing wear and need for universal joint replacement.
WHEEL BEARINGS
1.0
Check, adjust, and repack wheel bearings every six months or 1000 operating hours.
31
Refer to Section XIV for applicable procedures.
BRAKES
1.0
Check brake operation and adjust linings as required. If linings are worn, refer to
9
32
direct support for relining.
0.4
33
Inspect brake lines and wheel cylinders for evidence of leakage.
0.2
Check master cylinder and power booster operation. Check fluid level in master
10
34
cylinder and add fluid as required.
Bleed the brake system if pedal feels spongy, or if brake system has been opened up
0.4
35
at any point.
HAND BRAKE
1.0
11
36
Check ability of hand brake to hold tractor on a grade. Adjust lining clearance to
compensate for wear, or, if linings appear worn, perform complete relining as
outlined in Section XV.
REAR AXLE
0.4
Drain and refill rear axle differential and drop gear case. Check for leakage around
37
differential housing and axle ends.
STEERING SYSTEM
Perform all lubrication services on drag link and tie rod. Check condition of drag
1.0
38
link, particularly the ball stud seats, and replace worn parts.
Check steering gear adjustment and correct if necessary, according to instructions of
0.2
39
Section XVI.
FRONT AXLE
0.2
Lubricate front axle king pins. Check for bent or misaligned axle. Check security of
40
mounting to springs.
SPRINGS
0.1
Check springs for broken leaves, loose clips or hardware, and security of mounting
41
at spring shackles.
PINTLE HOOK
Check pintle hook for security of mounting. Check to see that hook latches and
0.5
42
unlatches properly. Replace entire assembly if defective.
Section VI. TROUBLESHOOTING
dividual component, unit, or system is followed
4-15. General
by a list of tests or inspections which will aid in
a. This section contains troubleshooting
in-
determining probable causes and corrective
formation for locating and correcting most of
the
actions to take. Perform these tests/inspections
operating troubles which may develop in
the
and corrective actions in the order listed.
warehouse tractor. Each malfunction for an
in-
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