TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 310 of 596

TM 9-2815-205-34

3-50. PISTON AND CONNECTING ROD MAINTENANCE - TRUNK (MODELS 5063-5299,

5063-5395, AND 5063-5398) (Cont)

b. Disassembly

(1)

(2)

Secure piston and connecting rod assembly (8) in a soft-jawed vise. Remove fire ring (9), three

compression rings (10), upper oil ring (11), and two lower oil rings (12) from piston (13) using

piston ring pliers. Remove spiral oil ring expander (14) and wavy oil ring expander (15) from

lower grooves in piston. Discard rings and expanders.

Remove piston and connecting rod assembly (8) from soft-jawed vise and lay horizontally on

flat surface.

CAUTION

Use care not to damage piston or bushings during removal of piston pin retainers.

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