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TM 5-4320-313-14
Figure 5-27. Piston Removal.
b. Disassembly. Remove piston rings from piston.
c. Cleaning.
WARNING
Do not breathe cleaning solvent P-D-680 vapors for long periods of time or use solvent near open
flames. To avoid illness, explosion, or fire, only use solvent in well-ventilated areas away from open
flames.
(1) Clean gudgeon pin and piston with a rag and cleaning solvent and allow to dry.
(2) Remove carbon from piston ring grooves.
d. Inspection.
(1) Inspect piston for cracks between ring grooves.
(2) Inspect piston for indications of overheating.
5-41
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