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 287 of 1313
ENGINE CRANKS BUT DOES NOT START - Continued
STEP
1.
DOES ENGINE START WITH EMERGENCY ENGINE STOP CONTROL ALL THE WAY IN?
a.
Verify emergency engine stop control is all the way in and emergency shutoff valve has been reset
(TM
9-2320-272-10).
T0359DAA
Starter
Switch
Battery
Switch
Eng Stop
Control
Instrument
Panel
Figure 1.
Engine Stop Control.
b.
Press accelerator pedal all the way down to floor and hold while trying to start engine.
CONDITION/INDICATION
DOES ENGINE START WITH EMERGENCY ENGINE STOP CONTROL ALL THE WAY IN?
DECISION
YES - Problem fixed.
NO - Go to Step (2).
STEP
2.
IS AIR CLEANER INDICATOR IN RED ZONE?
a.
Check air cleaner indicator for air restriction indication.
T0038DAA
Air Cleaner Indicator
Figure 2.
Air Cleaner Indicator.
TM 9-2320-272-23-1
0007
0007-2
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