REPAIR SCREED EXTENSION CYLINDER - Continued.
INSPECT - Continued.
INSPECT CYLINDER HEAD.
Run your finger along the edges of retaining
ring groove surface F and o-ring and
packing retainer groove surface G. Feel for
any raised edges or nicks that may damage
retaining ring or cylinder tube interior
surfaces. Remove raised edges and nicks
with crocus cloth.
Run your finger along inside bore ring wiper
groove surface H and compression cup
groove surface I. Feel for any raised edges
or nicks that may damage ring wiper and
compression cup. Remove raised edges
and nicks with crocus cloth.
Run your finger over cylinder head inside
bore surface J. Feel for any nicks, pits, or
scratches of less than 0.5 in. (12,7 mm) in
length with crocus cloth.
Run your finger along edges of packing
retainer and seal groove surface K. Feel
for any sharp edges or nicks that may
Remove sharp edges and nicks with crocus
Replace piston if sharp edges or nicks
cannot be polished out, or if surface defect
exceeds 0.5 in. (12,7 mm) in length.
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