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 561 of 1313

HARD STEERING - Continued
STEP
1.
ARE ALL HYDRAULIC LINES AND HOSES IN GOOD CONDITION?
Visually inspect all hydraulic lines and hoses for leaks.
T1019DAA
Figure 1.
Steering Hydraulic Lines.
CONDITION/INDICATION
ARE ALL HYDRAULIC LINES AND HOSES IN GOOD CONDITION?
DECISION
NO - Steering assist cylinder hoses damaged. Replace damaged hoses (Volume 3, WP
0507). Go to Step (6)
to verify problem is solved.
NO - Steering pump pressure and return hoses damaged (Ross). Replace damaged
hoses (Volume 3, WP
0505). Go to Step (6) to verify problem is solved.
NO - Steering pump pressure and return hoses damaged (Sheppard). Replace damaged
hoses (Volume 3, WP
0506). Go to Step (6) to verify problem is solved.
NO - Steering gear to assist cylinder pressure lines damaged. Replace damaged pressure
lines (Volume 3, WP
0508). Go to Step (6) to verify problem is solved.
YES - Go to Step (2).
TM 9-2320-272-23-1
0052
0052-2


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