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 324 of 1313
ENGINE STOPS WHEN ACCELERATOR IS RETURNED TO IDLE POSITION - Continued
STEP
2.
IS ENGINE IDLE SPEED SET BETWEEN 600-650 RPM?
a.
Start engine.
b.
Check if tachometer reads between 600 to 650 RPM at idle.
T0054DAA
Figure 2.
Tachometer.
CONDITION/INDICATION
IS ENGINE IDLE SPEED SET BETWEEN 600-650 RPM?
DECISION
YES - Go to Step (3) to verify problem is solved.
NO - Adjust engine idle RPM M939/A1 (Volume 2, WP
0240), M939A2 (Volume 2, WP
0242). Go to Step (3)
to verify problem is solved.
STEP
3.
IS YOUR ORIGINAL ENGINE RUNNING PROBLEM STILL PRESENT?
a.
Ensure vehicle is returned to normal operating condition.
b.
Check to see if your original problem still exists.
CONDITION/INDICATION
IS YOUR ORIGINAL ENGINE RUNNING PROBLEM STILL PRESENT?
DECISION
YES - Notify supervisor.
NO - Problem fixed.
END OF WORK PACKAGE
TM 9-2320-272-23-1
0010
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