TM-9-2350-238-20-2
CRANE (CAB) COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT,ARMORED, M578
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL
MAY 1993
CHANGE 1
TM-9-2350-238-20-2 - Page 59 of 495
TM 9-2350-238-20- 2
2-10. ELECTRICAL CIRCUIT TROUBLESHOOTING .
a .
The electrical circuit troubleshooting table lists the procedures necessary to inspect/repair
applicable electrical circuits .
b.
If you have a problem with an electrical circuit which is not covered in the steps below ,
notify your supervisor .
ELECTRICAL CIRCUIT SYMPTOM INDE X
Troubleshootin g
Procedur e
Pag e
BOOM AND WINCH INSTALLATIO N
Level wind circui t
Lever wind does not traverse cab when MASTER and LEVEL WIND
switches are ON. Filter bypass indicator light is on . . . . . . . . . . . . . . . . . .
Level wind traverses cab in only one direction . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC INSTALLATIO N
Filter bypass indicator circui t
Filter bypass indicator is not operating when level wind circuits ar e
operating normally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter bypass indicator is off when level wind circuits are not operating . . . . .
Filter bypass indicator stays on when level wind circuits are operatin g
normally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIip ring circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAB FILTER INSTALLATIO N
Cab air purifier circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL INSTALLATIO N
Cab flasher headlight and dome light circui t
Cab signal flasher headlight and flasher indicator lamps are not operatin g
when MASTER and FLASHER SIGNAL switches are ON . . . . . . . . . . . . . . .
Cab signal flasher headlight does not operate when flasher indicator lam p
is on and MASTER and FLASHER SIGNAL switches are ON . . . . . . . . . . . . .
Either dome light does not operate when MASTER switch is ON . . . . . . . . . .
Flasher indicator lamp is not operating when cab signal flasher headligh t
is on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Utility outlet does not operate when both dome lights are on and MASTER
switch is on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Utility outlet is not operating when cab flasher headlight and dome lights
are off and MASTER switch is ON and dome light switches are ON . . . . . . .
Floodlight circui t
Both floodlights are not operating when MASTER and FLOODLIGHT S
switches are O N
Only one floodligh t
switches are O N
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
is operating when MASTER and FLOODLIGHT S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 1
2-2 7
2-3 7
2-3 5
2-4 1
2-3 0
2-4 2
2-5 5
2-5 9
2-6 1
2-5 7
2-6 3
2-6 5
2-5 1
2-4 9
2-1 9
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