 |
|||
|
|
|||
|
Page Title:
Table 2-2. Troubleshooting - continued |
|
||
| ||||||||||
|
|
 Table 2-2. Troubleshooting (Cont'd)
Corrective action
Probable cause
Malfuntion
a.
Loose pulley or alternator mounting.
a Tighten.
31. Alternator noisy.
b.
Defective bearings or armature rubbing or
b. Replace alternator (para 2-31).
field
poles.
a. Add distilled water to bring level above
a.
Battery solution level low.
32. Battery discharge
plates; inspect for cracked case.
b. Short in battery cell.
b. Replace battery (para 2-37).
c. Alternator not charging.
c. Sec "So Alternator Output" or "Low or
Fluctuating Alternator Output" items 28 or 29
above.
d. Loose or dirty connections. broken cables.
d. Clean and tighten connections; replace
cables.
e. Excessive use of starting motor.
e. Tune up engine, change battery.
f. Idle battery or excessive use of lights with
f. Recharge or replace battery (para 2-37).
engine at idle.
Use lights sparingly.
g. Short circuits.
g. Replace defective wiring.
33. Lights do not light.
a. Switch not fully ON.
a. Turn switch ON fully.
b. Loose or dirty connections, broken wire.
b. Clean short circuited wiring or replace
defective parts.
c. Wiring circuit short-circuited or open
c. Connect short circuit or replace defective
parts.
d. Light burned out.
d. Replace light (pars 2-39).
e. Defective switch.
e. Replace switch.
34. Lights dim.
a. Loose or dirty connections.
a. Clean and tighten connection.
b. Wiring short circuited.
b. Replace defective wiring.
c. Defective switch.
c. Replace switch.
d. Weak battery.
d. Recharge or replace battery (para 2-37).
35. Horn sounds continuously
Short circuit in wiring between horn and horn
Replace wire.
button.
36. Horn will not operate.
a. Horn fuse blown.
a. Replace fuse.
b. Loose or dirty conditions.
b. Clean and tighten connections.
c. Open circuit.
c. Repair or replace wiring.
37. Continuous drive axle noise.
a. Unevenly worn tires.
a. Replace tires (para 2-57).
b Improperly adjusted wheel bearing.
b. Adjust bearings (pars 2-58).
c. Fill to correct level.
c. lack of lubricant.
d. Worn parts.
d. Report to direct support maintenance.
38.
Axle noise on drive or on coast only.
Parts worn or out of adjustment.
Report to direct support maintenance.
39.
Excesive backlash in drive axle.
Parts worn or out of adjustment.
Report to direct support maintenance.
40.
Complete failure of drive axle.
Damaged parts.
Report to direct support maintenance.
41.
Steering is difficult.
a. Lack of lubrication.
a. Lubricate.
b. Tight steering gear, misaligned wheels.
b. Report to direct support maintenance.
c. Bent or misaligned parts.
c. Report to direct support maintenance.
42. Truck wanders or weaves
a. Improper toe-in, camber or caster.
a.
Report to direct support maintenance.
b. Loose wheel bearings.
b.
Adjust wheel bearings (para 2-58).
c. Steering gear worn or maladjusted.
c.
Report to direct support maintenance.
d. Steering gear mounting bolts loose.
d.
Tighten mounting bolts.
a. Steering gear worn or adjusted too loose
a.
Report to direct support maintenance.
43. Shimmying or wobble at low speeds.
b. Loose wheel bearings.
b.
Report to direct support maintenance.
a. Odd size or new and old tires on opposite
44. Vehicle pulls to one side.
a.
Match tires.
wheels.
b. Improper toe-in, camber or caster.
b.
Report to direct support maintenance.
c. Tight wheel bearings.
c.
Report to direct support maintenance.
d. Bent steering arm or connection.
d.
Report to direct support maintenance.
45. Brakes drag
a. Improper pedal adjustment.
a.
Adjust brake pedal free travel (para 2-52).
b. Brake shoe return spring broken or weak.
b.
Report to direct support maintenance.
c. Loose or damaged wheel bearings.
c.
Report to direct support maintenance.
d. Brake backing plate loose.
d.
Report to direct support maintenance.
46. Brakes grab.
a. Grease on bearings
a.
Report to direct support maintenance.
b. Dirt inbedded in lining.
b.
Report to direct support maintenance.
c. Drums scored or rough.
c.
Report to direct support maintenance.
47. Brake locked.
a. Brake pedal locking free travel.
a.
Adjust pedal free travel (para 2-52).
b. Brake frozen to drums (cold weather).
b.
Break loose by driving vehicle.
a. Brake lining worn
48. Brake noisy or chatters
a.
Report to direct support maintenance.
b. Grease on linings.
b.
Report to direct support maintenance.
c. Dirt imbedded in linings.
c.
Report to direct support maintenance.
2-7
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals