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 - Page 434 of 1313
ENGINE OVERHEATS - Continued
CONDITION/INDICATION
IS ENGINE COOLANT AT PROPER LEVEL?
DECISION
NO - Fill coolant to proper level (Volume 2, WP
0287). Go to Step (12) to verify problem is solved.
YES - Go to Step (2).
STEP
2.
IS ENGINE OIL AT PROPER LEVEL?
Check dipstick for proper oil level (TM 9-2320-272-10).
T0402DAA
Dipstick
Dipstick
M939/A1
M939A2
Figure 2.
Engine Oil Dipstick.
CONDITION/INDICATION
IS ENGINE OIL AT PROPER LEVEL?
DECISION
NO - Oil level is high. Drain crankcase to safe operating level (Volume 2, WP
0232). Go to Step (12) to verify
problem is solved.
NO - Oil level is low. Add to proper operating level (Volume 5, WP
0820). Go to Step (12) to verify problem is
solved.
YES - Go to Step (3).
TM 9-2320-272-23-1
0028
0028-3
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