TM 5-4320-302-146-16.PISTON ASSEMBLY (CONT)Location/ItemActionRemarksDISASSEMBLYI3.Piston pinRemove from piston.4.Piston ringsRemove from piston and piston ring plier No.and expander130300. Discard piston rings and expander spring.springCLEANING/INSPECTION |WARNINGDry cleaning solvent is flammable and potentially dangerous to people and property. Do not use nearopen flame, sparks, excessive heat, or on hot surfaces. Flash point of P-D-680 solvent is 100° to 138° F(380 to 590C). Use solvent in a well-ventilated area, and avoid inhaling fumes. If repeatedly exposed tofumes, seek fresh air and immediate medical help. Avoid prolonged exposure of skin to solvent. Washexposed skin immediately and thoroughly.Death or severe injury might result when compressed air is used to blow dirt from skin or clothing. Airentering body openings is extremely dangerous. Compressed air used for cleaning shall not exceed 100psi (690 kPa). Use goggles or face shield for eye protection. Do not direct airstream against skin.5. Piston,Clean with P-D-680piston pin,dry cleaning solventand pistonand dry with compressedringsair. Remove carbon frompiston ring lands andgrooves with a wirebrush. Clean inside sur-face of piston and pistonskirt. Clean piston pinbore with small wire brush.6-109
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