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TM-9-2320-361-24-1 Page 115

TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks

Page 115 of 1176


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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.