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Page Title:
Table 4-2. Troubleshooting - Continued |
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 Table 4-2. Troubleshooting - Continued
Malfunction
Probable cause
Corrective action
42. Brakes drag
a.
Improper pedal adjustment
a.
Adjust brake pedal free travel
b.
Brakeshoe anchor pin tight in shoe
b.
Free pin and lubricate lightly.
c.
Brakeshoe return spring broken or
c.
Replace spring (para 4-51)
weak.
d.
Loose or damaged wheel bearings
d.
Adjust or replace wheel bearings
e.
Brake backing plate loose
e.
Tighten plate para 4-51).
43. Brakes grab
a.
Grease on linings
a.
Correct grease leakage; clean or
install new shoes and lining
assemblies (para 4-51).
b.
Dirt imbedded in lining
b.
Clean lining with wire brush.
c.
Drums scored or rough
c.
Replace drum and brakeshoe and
lining assemblies (para 4-51).
44. Brake locked
a.
Brake pedal lacking free travel
a.
Adjust pedal free travel (para 4-53).
b.
Brakes frozen to drums (cold
b.
Break loose by driving vehicle.
Weather).
45. Brake noisy or chatters
a.
Brake lining worn
a.
Replace shoe and lining assemblies
b.
Grease on linings
b.
Correct leakage; clean or replace
shoe and lining assemblies (para 4-51).
c.
Dirt embedded in linings
c.
Clean lining with wire brush.
d.
Improper or loose linings
d.
Replace shoe and lining assemblies
e.
Brakeshoe or drum distorted
e.
Replace (para 4-51).
46. Excessive brake pedal travel
a.
Lining worn
a.
Replace shoe and lining assemblies
b.
Pedal free travel improperly ad-
b.
Adjust free travel (para 4-53).
justed.
47. Excessive brake pedal pressure
a.
Insufficient fluid in master
a.
Fill master cylinder to within 1/4
necessary to actuate brakes
cylinder inch of the top (para 4-52).
b.
Grease on linings; worn or glazed
b. Correct grease leakage; clean tip
lining
and replace shoe and lining
assemblies (para 4-51).
c.
Warped brakeshoes or defective
c. Replace shoe and lining assemblies
brake linings
d.
Brakedrum scored or distorted
48. Wheel wobble
a.
Wheel bent
a. Inspect mounting on hub,
spindles, and drive axle; replace
defective wheel or mounting
b.
Wheel loose on hub
b. Tighten nuts or bolts.
c.
Wheel bearings not adjusted
49. Forks do not lift to maximum
Hydraulic oil level low
Fill to correct level.
height.
50. Truck will not move in either
a.
Parking brake not released
a.
Release brake.
direction
b.
Transmission oil level low
b.
Fill to correct level.
51. Truck moves slowly in either
a.
Oil level low
a.
Fill to correct level.
direction at wide open throttle
b.
Brakes dragging
b.
Refer to "Brakes drag" item 42
above.
52. Transmission overheating
a.
Oil level low
a.
Fill to correct level.
b.
Brakes dragging
b.
Refer to "Brakes drag" item 42
above.
c.
Plugged radiator
e.
Flush radiator (para 4-28).
Section VI.
RADIO INTERFERENCE SUPPRESSION
used includes high resistance carbon wires, grounding
4-11. General
the frame with bonding straps, and using resistor type
Essentially, suppression is attained by providing a low
spark plugs. (Refer to TM 11-4831.
resistance path to ground for stray currents. The method
4-8
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