TM 9-2815-205-34
3-51. PISTON AND CONNECTING ROD MAINTENANCE - CROSS-HEAD (MODELS 5063-5392,
5063-5393, 5063-539F, AND 5063-539L) (Cont)
(3)
Piston and Connecting Rod Assembly to
Cylinder Liner
(a) Apply clean engine oil to piston, rings,
and inside surface of piston ring
compressor.
CAUTION
Inspect ring compressor for
nicks or burrs, especially at in-
side diameter of straight end.
Nicks or burrs on inside diame-
ter of compressor will result in
damage to piston rings.
(b) Place piston ring compressor (30)
on wood block, with larger end of
ring compressor facing up.
CAUTION
Piston ring gaps must be 90 de-
grees apart on piston for proper
compression. Ends of oil control
ring “expanders must not over-
lap or breakage will result.
(c)
(d)
Start top of piston and connecting rod
assembly (8) straight into ring
compressor (30). Then push piston
down until it contacts wood block.
Place liner (2) with flange end down
on wood block.
NOTE
Numbers on side of connecting
rod and cap identify rod with cap
and indicate particular cylinder
in which they are used.
(e) Place ring compressor (30) and piston
and connecting rod assembly (8) on
liner (2) with numbers on side of
connecting rod and cap aligned with
matchmark on liner.
3-210
Change 1