TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0120 00 i. RETAINING RINGS. 1) Retaining rings should be replaced when removed unless otherwise stated in the maintenance task. They should not be reused. 2) Some retaining rings are beveled on one side. When installing this type of ring, the beveled side must face the part to be retained. j. SPRINGS. Discard springs that have defects. Load and height inspection data, where needed, are given in maintenance procedures. k. SHAFTS AND SPINDLES. 1) Replace shafts and spindles that show signs of wear, binding, scores, cracks, burrs, or clogged oil passages. WARNING Air pressure in excess of 30 psi (207 kPa) can injure personnel. Do not direct pressurized air at yourself or others. Always wear goggles. 2) Remove obstructions with compressed air or by probing with soft wire. 3) Remove burrs and minor surface defects with a crocus cloth (WP 0782 00, Item 1). l. ELECTRICAL PARTS. 1) Replace corroded or burned parts and parts which show signs of mildew. 2) Tighten loose connections. 3) Replace cracked or broken wires, circuit cards, relays, and connectors. 4) Replace cracked, torn, or burned insulation and heatshrink tubing. m. INSERTS. Replace insert when threads are stripped or when insert is cracked or loose. 1) Drill and remove damaged insert from casting. 2) Install new insert in casting using suitable replacement tool. 3) Install plugs in armor mounting inserts, as required. 4) Install setscrews in hull armor mounting screw holes, as required. 0120 00-11