TM-9-2320-272-23-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5

SEPTEMBER 2012
TM-9-2320-272-23-1

  TM-9-2320-272-23-1 - Page 882 of 1313

OIL PRESSURE GAUGE INOPERATIVE (OIL LEVEL IS CORRECT) - Continued
d.
Disconnect circuit 36 wire from oil pressure gauge.
e.
Connect jumper wire to open oil pressure gauge terminal.
f.
Place battery switch to ON position.
g.
Momentarily touch jumper wire to vehicle chassis ground.
NOTE
If oil pressure gauge deflects when grounded, circuit 36 wire is faulty.
h.
Observe oil pressure gauge for movement.
CONDITION/INDICATION
IS CIRCUIT 36 WIRE IN GOOD CONDITION?
DECISION
YES - Go to Step (3).
NO - Repair circuit 36 wire (Volume 3, WP
0352). Go to Step (4) to verify problem is solved.
TM 9-2320-272-23-1
0103
0103-5


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