REPAIR SCREED LIFT CYLINDER - Continued.
DISASSEMBLE - Continued.
Use caution when removing seals
and preformed packings. Do not use
excessive force. Use an o-ring tool.
Scratched or dented seal grooves can
cause bypass leakage.
Use an o-ring tool to remove o-ring (10) and
packing retainer (11) from cylinder head
(1). Discard o-ring and packing retainer.
Remove ring wiper (12) and compression
cup (13) from inside cylinder head (1).
Discard ring wiper and compression cup.
Cleaning solvent, P-D-680, is TOXIC
and flammable. Wear protective
goggles and gloves. Use only in a
well ventilated area. Avoid contact
with skin, eyes, and clothes, and do
not breathe vapors. Keep away from
heat or flame. Never smoke when
using solvent; the flashpoint for Type
III cleaning solvent is 200°F (93,30C).
Failure to do so may result in injury
or death to personnel.
If personnel become dizzy while
using cleaning solvent, immediately
get fresh air and medical help. If
solvent contacts skin or clothes,
flush with cold water. If solvent
contacts eyes, flush eyes with water
and get immediate medical attention.
RINSE PISTON ROD (3), CYLINDER HEAD (1),
PISTON (6), AND CYLINDER TUBE (4) WITH
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