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 688 of 1313
DUMP BODY WILL NOT LOWER - Continued
T0648DAA
CONTROL VALVE
Figure 2.
Control Valve.
b.
Check for control valve shaft in and out movement.
CONDITION/INDICATION
DOES CONTROL VALVE SHAFT MOVE IN AND OUT?
DECISION
YES - Go to Step (3) to verify problem is solved.
NO - Replace dump control valve (Volume 4, WP
0720). Go to Step (3) to verify problem is solved.
STEP
3.
IS YOUR ORIGINAL DUMP BODY LOWERING PROBLEM STILL PRESENT?
a.
Ensure vehicle is returned to normal operating condition.
b.
Check to see if your original dump body lowering problem still exists.
CONDITION/INDICATION
IS YOUR ORIGINAL DUMP BODY LOWERING PROBLEM STILL PRESENT?
DECISION
YES - Notify supervisor.
NO - Problem fixed.
END OF WORK PACKAGE
TM 9-2320-272-23-1
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