TM 5-3895-373-34
C.
INSPECT - Continued.
2.
INSPECT PISTON ROD.
a.
Run your fingernail along piston rod (4) surface
C. Feel for any scratches or sharp edges that
may damage preformed packings and seals.
Inspect
circumference
of
piston
rod
for
scratches, pits, or wear that expose base
metal through chrome plating.
b.
Remove sharp edges or nicks and scratches
using crocus cloth.
c.
Replace piston rod (4) if scratches or pits
cannot be polished out, if scratch exceeds 0.5
in. (12,7 mm) in length, or base metal is
exposed through chrome plating.
d.
Run your finger along edge of split piston
groove surface D and feel for nicks and sharp
edges. Remove sharp edges using crocus
cloth.
e.
If split piston groove edge is broken off, replace
piston rod.
3.
INSPECT CYLINDER HEAD.
a.
Run your finger along the edges of preformed
packing groove E and preformed packing
groove F on cylinder head (2). Feel for any
raised edges or nicks that may damage the
cylinder tube interior surfaces. Remove raised
edges and nicks with crocus cloth.
b.
Run your finger along the inside bore wiper ring
groove G and seal groove H. Feel for any
raised edges or nicks that may damage wiper
ring and preformed packing on piston rod (4).
Remove raised edges and nicks with crocus
cloth.
c.
Run your finger over cylinder head (2) inside
bore surface I. Feel for any nicks, pits, or
scratches. Remove nicks, pits, or scratches of
less than 0.5 in. (12,7 mm) in length with
crocus cloth. If scratch exceeds 0.5 in. (12,7
mm), replace cylinder head.
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