TM 9-2350-247-20-1PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDINGLUBRICATION INSTRUCTIONS — Continued0128 00g.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. Theyshould not be reused.h.THREADED PARTS. Replace all parts that have stripped or damaged threads. Replace parts that cannot be repairedby 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 maintenancetask. 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 thepart to be retained.j.SPRINGS. Discard springs that have defects. Load and height inspection data, where needed, are given inmaintenance procedures.k.SHAFTS AND SPINDLES.1) Replace shafts and spindles that show signs of wear, binding, scores, cracks, burrs, or clogged oil passages.WARNINGAir pressure in excess of 30 psi (207 kpa) can injure personnel. Do not direct pressurized air atyourself 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 minorwear.5.FLUID LEAKS AND CHECKING FOR LEAKSa.GENERAL. Fluid leaks in hoses and fluid lines affect the carrier parts operation. The types and classes of leaks aregiven below.CLASS IFluid seepage is not great enough to form drops, but it is shown by wetness or colorchanges.0128 00-11
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