TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0128 00 g. GREASE SEALS, PREFORMED PACKINGS, GROMMETS, AND GASKETS. Preformed packings, seals, grommets, and gaskets should be replaced when removed unless otherwise stated in the maintenance task. They should not be reused. h. THREADED PARTS. Replace all parts that have stripped or damaged threads. Replace parts that cannot be repaired by chasing threads with a used tap or die. i. RETAINING RINGS. 1) Retaining rings that have defects 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 cleaning cloth (WP 0542 00, Item 8). l. ELECTRICAL PARTS. 1) Replace corroded or burned parts and parts which show sings 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. CANVAS COVERS AND ROPES. 1) Repair canvas cover tears and ripped seams. See FM 10-16 for canvas and webbing repair. 2) Repair rope and faulty rope ends with twine or adhesive tape. Trim rope ends. Reverse rope that shows minor wear. 5. FLUID LEAKS AND CHECKING FOR LEAKS a. GENERAL. Fluid leaks in hoses and fluid lines affect the carrier parts operation. The types and classes of leaks are given below. 0128 00-11 Change 1