 |
|||
|
|
|||
|
Page Title:
Table 4-2. Troubleshooting - Continued |
|
||
| ||||||||||
|
|
 Table 4-2. Troubleshooting - Continued
Malfunction
Probable cause
Corrective action
27. Starting motor operates, but fails
a.
Starting motor gear not engaging
a.
Replace starting motor (para 4-35).
to crank engine when switch is
flywheel
engaged.
b.
Starting motor or drive gear
b.
Replace starting motor (para 4-35).
defective
28. No alternator output
a.
Regulator defective
a.
Adjust or replace regulator (para 4-34).
b.
Alternator defective
b.
Replace alternator (para 4-33).
29. Low or fluctuating alternator
a.
Loose fan belt
a.
Adjust belt (para 4-31).
output.
b.
Loose or dirty connections in
b.
Clean and tighten connections.
charging circuit.
c.
Defective alternator
c.
Replace alternator (para 4-33).
d.
Defective regulator
d.
Adjust or replace regulator (para 4-34).
30. Excessive alternator output.
a.
Defective alternator.
a.
Replace alternator (para 4-33).
b.
Defective regulator.
b.
Adjust or replace regulator (para 4-34).
31. Alternator noisy
a.
Loose pulley or alternator
a.
Tighten.
mounting.
b.
Defective bearings or rotor
b.
Replace alternator (para 4-33).
rubbing on stator windings.
32. Battery discharged
a.
Battery solution level low
a.
Add distilled water to bring level
to splitrings in battery; inspect
for cracked case.
b.
Short in battery cell
c.
Alternator not charging
"Low or fluctuating alternator
output", items 28 and 29 above.
d.
Loose or dirty connections;
d. Clean and tighten connections;
broken cables
replace cables (para 4-39).
e.
Excessive use of starting motor
e. Tune up engine; charge battery.
f.
Idle battery or excessive use of
f.
Recharge or replace battery (para 4-39).
lights with 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
b. Clean and tighten; replace or
wire
repair wire or terminal.
c.
Wiring circuit short circuited or
c. Correct short circuit or replace
open
defective parts.
d.
Light burned out
e.
Defective switch
34. Lights dim
a.
Loose or dirty connections
a. Clean and tighten connections.
b.
Wiring short circuited
b. Correct short circuit or replace
defective parts.
c. Defective switch
d. Weak battery
35. Horn sounds continuously
Short circuit in wiring between horn
Replace wire.
and horn button.
36. Horn will not operate.
a. Horn fuse blown.
a.
Replace fuse.
b. Loose or dirty connection.
b.
Clean and tighten connections.
c. Open circuit.
c.
Repair or replace wire.
37. Continuous drive axle noise.
a. Unevenly worn tires.
a.
Replace wheels (para 4-55).
b. Improperly adjusted wheel
b.
Adjust bearings (para 4-56).
bearing.
c. Lack of lubricant.
c. Fill to correct level.
38. Steering is difficult.
Lack of lubrication.
Lubricate.
39. Truck wanders or weaves.
a. Loose wheel bearings.
b. Steering gear mounting bolts
b. Tighten mounting bolts.
loose.
40. Shimmy or wobble at low speeds.
Loose wheel bearings.
Adjust wheel bearings (para 4-56).
41. Vehicle pulls to one side.
a. Odd size or new and old tires on
a. Match tires.
opposite wheels.
b. Improper toe-in, camber, or
b.
Adjust to proper specifications
caster.
(refer to para 4-58).
c. Tight wheel bearings.
c.
Adjust. Lubricate wheel bearings
4-7
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals