NMWR-9-2815-220 Overhaul Manual for M60 M88 Engine AVDS-1790-2CA, AVDS-1790-2DA, AVDS-1790-2DR Download
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NMWR 9-2815-220 GENERAL MAINTENANCE, OVERHAUL, AND REPAIR PROCEDURES—Continued 0005 00 3. Disassembly. 4. Cleaning. a. General. The presence of dirt or foreign material is a constant threat to satisfactory engine operation and maintenance. Care and effort are required in all cleaning operations. Maintain rigid cleaning standards during all phases of overhaul operations. The following general instructions apply to all cleaning operations. (1) Clean all parts before inspection, after repair, and before assembly. (2) Keep hands free of grease accumulation. (3) After cleaning, cover or wrap all parts. b. Castings. (1) Remove sludge and gum deposits using a stiff brush. (2) Clean all surfaces with cleaning compound solvent. Repeat operation if surface is not free of scale or adhering material. WARNING Particles blown by compressed air are hazardous. Make certain air stream is directed away from user and that other persons are not exposed. Protect eyes and face with appropriate shields. (3) Blow out all tapped holes with compressed air. (4) After cleaning, dry casting with compressed air. c. Oil passages. (1) Clean passages with wire or probes to break up all sludge or gum deposits. WARNING Solvents can burn easily, can give off harmful vapors, and are harmful to skin and clothing. Wear protective goggles and gloves and don’t breath vapors, to avoid injury or death, keep away from open fire and use in well ventilated area. If solvent gets on skin or clothing, wash immediately with soap and water. (2) Wash passages by flushing with cleaning compound solvent. Be sure passages are free from obstructions and remove any particles which might later become dislodged and contaminate the oil system. 0005 00-2 Change 1 Refer to TM 9-2815-220-34 for disassembly procedures.