TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 115 of 1176
TM 9-2320-361-24-1
0006 00
0006 00-19
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. TOWING PINTLE DOES
NOT LATCH OR LOCK
1. Inspect pintle hook for
lubrication.
2. Check pintle hook for proper
operation.
Lubricate pintle hook as required
(WP 0020 00).
If pintle hook is broken, bent, or
missing parts, disassemble and
repair or replace (WP 0199 00).
2. PINTLE HOOK DOES
NOT TURN
1. Inspect pintle hook for
lubrication.
2. Inspect pintle hook for bends.
Lubricate pintle hook as required
(WP 0020 00).
If pintle hook is bent, replace
(WP 0199 00).
3. EXCESSIVELY LOOSE
LIFTING SHACKLE
Inspect shackle pin for breaks,
cracks, and bends.
If shackle pin is broken, cracked, or
bent, replace (WP 0197 00,
WP 0198 00, or WP 0200 00).
4. LOOSE SPARE TIRE
CARRIER
1. Check for missing or broken
mounting screws.
2. Check spare tire carrier for bent,
broken, or missing crank, crank
gear, shaft, or bracket.
If mounting screws are broken or
missing, replace (WP 0202 00).
If any spare tire carrier part is
damaged, replace (WP 0202 00).
Table 14. Towing Pintle Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. NOISY SUSPENSION
1. Inspect leaf springs for damage.
2. Check front spring shackles and
steering linkage for lack of
lubrication.
3. Check rear spring seat pads for
wear.
If damaged, replace (WP 0153 00 or
WP 0157 00).
If lubrication is required, refer to
WP 0020 00.
If springs are rubbing against
spring seat bracket, replace spring
seat pads (WP 0161 00).
2. CONTINUOUS
WANDERING OR
SWAYING (POOR
CONTROL)
1. Inspect front leaf springs for
breaks.
2. Inspect shock absorbers for class
II or class III leaks and damage.
3. Inspect spring U-bolts for
looseness or damage.
4. Check steering system.
Replace any broken leaf springs
(WP 0153 00).
Replace broken or leaking shocks
(WP 0160 00).
1. If U-bolts are loose, tighten
190–230 lb-ft (260–312 N
•
m).
2. If U-bolts are damaged, replace
(WP 0153 00 through WP 0162 00).
Refer to WP 0006 00, table 13,
malfunction 1.
3. VEHICLE SAGS
1. Inspect leaf springs for breaks or
damage.
2. Inspect leaf spring shackles for
breaks or worn bushings.
Replace any leaf springs that may
cause vehicle to sag (WP 0153 00 or
WP 0157 00).
Replace any broken or worn
shackles (WP 0154 00).
Table 15. Suspension Troubleshooting Procedures.
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