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 412 of 1313
EXHAUST COLOR BLACK DURING NORMAL OPERATION AND IDLE - Continued
STEP
4.
IS AIR CLEANER INDICATOR IN RED ZONE?
a.
Check air cleaner indicator for air restriction indication.
T0394DAA
A
A
AIR CLEANER INDICATOR
Figure 4.
Air Cleaner Indicator.
b.
Clean air intake stack of any restrictions.
CONDITION/INDICATION
IS AIR CLEANER INDICATOR IN RED ZONE?
DECISION
YES - Perform air cleaner servicing (TM 9-2320-272-10). Go to Step (5) to verify problem is solved.
NO - Notify supervisor. Action may not be possible at this level of maintenance.
STEP
5.
IS YOUR ORIGINAL SMOKE PROBLEM STILL PRESENT?
a.
Ensure vehicle is returned to normal operating condition.
b.
Check to see if your original smoke problem still exists.
CONDITION/INDICATION
IS YOUR ORIGINAL SMOKE PROBLEM STILL PRESENT?
DECISION
YES - Notify supervisor.
NO - Problem fixed.
END OF WORK PACKAGE
TM 9-2320-272-23-1
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