TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 1030 of 1176
TM 9-2320-361-24-1 0164 00 0164 00-4 PARKING BRAKESHOE MAINTENANCE (Contd) DISASSEMBLY 1. Remove two clips (1), spring (6), and two washers (2) and (3) from pins (4) and (5). Discard clips (1). 2. Remove two clips (7) from pins (8) and (11). Discard clips (7). 3. Remove outer brakeshoe (9) from pin (8) and inner brakeshoe (10) from pin (11). 4. Remove nut (18), lockwasher (19), and cam pin (5) from outer shoe (9). Discard lockwasher (19). NOTE Perform step 5 only if lubrication fittings are damaged. 5. Remove three lubrication fittings (12) from outer shoe (9) and one lubrication fitting (12) and pin (4) from inner shoe (10). Discard pin (4). CLEANING AND INSPECTION WARNING 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. CAUTION Do not saturate brakeshoe lining or brakedrum with Skysol 100. 1. Clean all parts with rag saturated with Skysol 100. Remove thick dirt and corrosion. 2. Measure the thickness of brake linings (13) and (15) at thinnest point. If thickness is 0.1875 in. (4.76 mm) or less, replace both brakeshoes (9) and (10). 3. Inspect brakeshoes (9) and (10) for broken linings (13) and (15), loose or missing rivets, cracks, or stripped threads. Replace both brakeshoes (9) and (10) if linings (13) and (15) are broken, rivets are loose or missing, brakeshoes (9) and (10) are cracked, or threads are stripped. 4. Inspect lever (14) for cracks, breaks, or loose pins (8) and (11). Replace if cracked, broken, or pins (8) or (11) are loose. Pins (8) and (11) must be perpendicular to lever (14). Clip grooves of pins (11) and (8) must be free of chips and burrs. 5. Slot in cam pin (5) must have square slot. If slot is damaged, replace pin (5). 6. Pin (4) must be tight in brakeshoe (11) and clip groove free of chips and burrs. 7. Inspect springs (20) and (21) for broken or distorted coils. If coils or hook ends are distorted or broken, replace. 8. Inspect jamnuts (17) and (18) for burred flats or stripped threads. Replace if flats are burred or threads are stripped. 9. Inspect screw (16) for breaks, cracks, and crossed or stripped threads. Replace if broken, cracked, or threads are crossed or stripped. 10. Inspect spring (6) for breaks or cracks. Replace if broken or cracked.