TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0167 00 0167 00-4 SERVICE BRAKESHOES MAINTENANCE (Contd) CLEANING AND INSPECTION WARNING • Eye protection is required when using wire brush for cleaning. Failure to do so may result in injury to personnel. • Skysol 100 solvent is combustible; DO NOT use or store near heat, sparks, flame, or other ignition sources. Use mechanical ventilation whenever product is used in a confined space, heated above ambient temperatures, or agitated. Keep container sealed when not in use. Contact with Skysol 100 may cause skin irritation. Use chemical-resistant gloves. In case of skin contact, remove any contaminated clothing and wash skin thoroughly with soap and water. Wash contaminated clothing before reuse. Eye contact may cause irritation, tearing, or blurring of vision. Use face shield or goggles when eye contact may occur. In case of eye contact, flush eyes with large amounts of water for at least 15 minutes or until irritation subsides. Inhalation may cause irritation to upper respiratory passages. DO NOT have food or drink in the vicinity. Failure to comply may result in injury to personnel. 1. Wash all parts, except brakeshoes (1) and (12), in Skysol 100 solvent and wipe dry with clean rag. Clean outer brakeshoe side of backing plate (3) with rag saturated in Skysol 100 solvent and wipe dry. 2. Measure top, middle, and bottom thickness of brakeshoes (1) and (12). If minimum thickness is 0.328 in. (8.33 mm) or less, replace. 3. Inspect backing plate (3) for cracks, breaks, and elongated holes. If backing plate (3) is broken, cracked, or holes are elongated, replace. If rear axle backing plate (3) is damaged, replace rear axle housing. 4. Inspect anchor plate (11) for loose or missing rivets (10). If any rivets (10) are loose or missing, replace backing plate (3). 5. Inspect anchor pins (13) for cracks, looseness, and chipped or broken retaining clip slots (14). If anchor pins (13) are cracked, loose in backing plate (3), or retaining clip slots (14) are damaged, replace. 6. Inspect wheel cylinder (5) for cracks, leaks, torn boots (4), and bent or broken pushrods (6). If cracked, leaking, boots (4) are torn, or pushrods (6) are bent or broken, replace wheel cylinder (5). 7. Inspect cams (9), springs (8), and adjusting pins (7) for cracks, bends, or breaks. If cracked, bent, or broken, replace. 8. Inspect return spring (15) and anti-rattle springs (2) for breaks, bends, or distorted coils. If broken, bent, or coils are distorted, replace.