TM 5-3895-370-14&Pb. Disassembly.CAUTIONDo not exchange upper and lowerbearing halves. Damage to engineassembly may result if bearinghalves are not kept separate.NOTE·All four pistons and connectingrods are disassembled the sameway.·Tag and mark all bearing halvesupon removal.(1)Tag, mark, and remove eight bearing halves (1and 2) from four connecting rods (3) and rodcaps (4).(2)Remove retaining ring (5) and wrist pin (6).Separate piston (7) from connecting rod (3).(3)Remove top ring (8), intermediate ring (9), andoil control ring (10).(4)Remove oil ring expander (11) from oil controlring (10).c. Cleaning/lnspection.WARNING·Drycleaning solvent (P-D-680) is TOXIC and flammable. Wear protectivegoggles and gloves; use only in a well-ventilated area; avoid contact with skin,eyes, and clothes and do not breathe vapors. Keep away from heat or flame.Never smoke when using solvent; the flash point for type I drycleaning solventis 100°F (38°C) and for type II is 140°F (60°C). Failure to do so may result ininjury or death to personnel. P-D-680 type III is a substitute for types I and II inthis application. The flash point for type III is 200°F (93°C).·If personnel become dizzy while using cleaning solvent, immediately get freshair and medical help. If solvent contacts skin or clothes, flush with cold water.If solvent contacts eyes, immediately flush eyes with water and get immediatemedical attention.(1)Soak pistons in a pan filled with drycleaning solvent until carbon deposits are easily removed.(2)Wash pistons and connecting rods with hot water and detergent. Use a brush to remove carbon deposits.5-281
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