TM 5-4320-302-14
6-16.
PISTON ASSEMBLY (CONT)
Location/Item
Action
Remarks
DISASSEMBLYI
3.
Piston pin
Remove from piston.
4.
Piston rings
Remove from piston and piston ring plier No.
and expander
130300. Discard piston rings and expander spring.
spring
CLEANING/INSPECTION |
WARNING
Dry cleaning solvent is flammable and potentially dangerous to people and property. Do not use near
open 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 to
fumes, seek fresh air and immediate medical help. Avoid prolonged exposure of skin to solvent. Wash
exposed skin immediately and thoroughly.
Death or severe injury might result when compressed air is used to blow dirt from skin or clothing. Air
entering body openings is extremely dangerous. Compressed air used for cleaning shall not exceed 100
psi (690 kPa). Use goggles or face shield for eye protection. Do not direct airstream against skin.
5. Piston,
Clean with P-D-680
piston pin,
dry cleaning solvent
and piston
and dry with compressed
rings
air. Remove carbon from
piston ring lands and
grooves with a wire
brush. Clean inside sur-
face of piston and piston
skirt. Clean piston pin
bore with small wire brush.
6-109
