Displacement Pump Repair
7.
Clamp the flats of the piston rod in a vise. Loosen
the retaining nut
(211).
Unscrew the piston valve
ton valve
(222).
See. Fig
25.
(222)
from the rod. Remove all parts from the pis-
Always use the special sleeve removal
move the sleeve. Other removal meth
-
PISTON
ASSEMBLY
Fig.
25
ou32
9.
Screw the large nut
(B)
of the tool into the top of
the cylinder
(19). Screw down the rod (A) to push
the sleeve
out.
Remove the tool. See Fig.
26.
8.
Remove and clean the sleeve
(218).
Use
ONLY
the special sleeve removal tool, P/N
222-586.
Fig.
26
m28
30
308-560
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