INSPECT - Continued.
INSPECT PISTON ROD.
Run your finger along piston rod (4), surface E.
Feel for any scratches or sharp edges that may
damage preformed packings and seals. Inspect
surface of piston rod for scratches, pits, or wear
that expose base metal through chrome plating.
Remove sharp edges of nicks or scratches using
Replace piston rod (4) if scratches or pits cannot
be polished out, if scratch exceeds 0.5 in. (12,7
mm) in length, or if base metal is exposed
through chrome plating.
Visually inspect packing groove, surface F, and
feel for nicks and sharp edges. Remove sharp
edges using crocus cloth.
If packing groove, surface F. If packing groove
edge is cracked or chipped, replace hopper lift
Inspect threads G. If threads are distorted,
replace piston rod (4).
INSPECT CYLINDER HEAD.
Visually inspect cylinder head (1) retaining ring
groove H and o-ring groove I for raised edges or
nicks that may damage retaining ring or o-ring.
Remove raised edges and nicks with crocus
cloth or replace cylinder head.
Inspect inside bore ring wiper groove J and
compression cup groove K for raised edges or
compression cup. Remove raised edges and
nicks with crocus cloth or replace cylinder head
Inspect cylinder head (1) inside bore surface L
for nicks, pits, or scratches. Remove nicks, pits,
and scratches of less than 0.5 in. (12,7 mm) in
length with crocus cloth.
Replace cylinder head (1) if nicks, pits, or
scratches cannot be polished out of bore,
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