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 691 of 1313
DUMP BODY WILL NOT HOLD IN RAISED POSITION - Continued
STEP
1.
ARE ALL HYDRAULIC LINES IN GOOD OPERATING CONDITION?
a.
Visually check all hydraulic lines for breaks and leaks. Refer to point to point schematics.
T0650DAA
Figure 1.
Hydraulic Lines.
b.
Tighten loose fittings.
CONDITION/INDICATION
ARE ALL HYDRAULIC LINES IN GOOD OPERATING CONDITION?
DECISION
YES - Go to Step (2).
NO - Replace damaged hydraulic lines (Volume 4, WP
0715). Go to Step (3) to verify problem is solved.
STEP
2.
IS CONTROL VALVE IN GOOD OPERATING CONDITION?
a.
Visually inspect control valve for hydraulic oil leaks.
TM 9-2320-272-23-1
0076
0076-2
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