TM-9-2320-386-24-1-2 Page 135

TM-9-2320-386-24-1-2 Unit Maintenance Manual Part 2 for M44A3 Series Trucks

Page 135 of 636

TM 9-2320-386-24-1-2 0305 00 CRANKSHAFT REAR SEAL MAINTENANCE (Contd) 0305 00-2 REMOVAL WARNING Eye protection is required when performing drilling operations. Failure to do so may result in injury to personnel. 1. Drill three evenly spaced 0.161-in. (4.1-mm) diameter holes in rear seal (2). 2. Alternating between drilled holes, use slide puller with adapter to evenly remove rear seal (2) from cover (1). Discard rear seal (2). NOTE Wear sleeve will be present on crankshaft only if rear seal was previously replaced. 3. If present, remove wear sleeve (3) from crankshaft (4). CLEANING AND INSPECTION WARNING Skysol-100 mixture is combustible. Use mechanical ventilation whenever product is used in a confined space, is heated above ambient temperatures, or is agitated. DO NOT use or store near heat, sparks, flame, or other ignition sources. 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 fifteen (15) minutes or until irritation subsides. Inhalation may cause irritation to upper respiratory passages. DO NOT have food or drink in the vicinity. 1. Using Skysol-100, clean rear of crankshaft (4) and cover (1), and dry with lint-free cloth. 2. Inspect cover (1) for cracks, breaks, and gouges. Replace cover (1) if cracked, broken, or gouged. INSTALLATION NOTE Tighten locator screws only finger-tight so that when seal and seal sleeve are installed they will self-align. 1. Install locator on rear of crankshaft (4) with two locator screws. CAUTION Rear crankshaft seal must be installed with wear sleeve in place. Do not remove wear sleeve from rear crankshaft seal. Failure to comply may result in damage to equipment. 2. Position new rear seal (2) on seal sleeve with beveled edge of wear sleeve (3) facing toward locator. 3. Install rear seal (2) and seal sleeve as a unit over locator and tighten two locator screws. 4. Position seal installer over locator, seal sleeve, and rear seal (2) and finger-tighten nut assembly. 5. Tighten nut assembly to install rear seal (2) on crankshaft (4) and cover (1). 6. Remove nut assembly, seal installer, and seal sleeve from locator.