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UEN00663-02
a If the caulking of screw (3) is too strong and it
cannot be removed, tighten the screw fully, then
fit tap (T) to the thread and remove the screw.
3]
Using tool U2, remove piston assem-
bly (4).
When not using tool U2, use the
q
drill holes (H)(ø10: 2 places) and
loosen piston assembly.
4]
Remove plunger
Boom and arm cylinder only
q
5]
Remove collar (6).
Boom and arm cylinder only
q
6]
Remove head assembly (7).
26
50 Disassembly and assembly
7]
Remove cap (8), and pull twelve balls
(9), then remove plunger (10).
Arm cylinder only
q
2.
Disassembly of piston assembly
1)
Remove ring (11).
2)
Remove wear ring (12).
3)
Remove piston ring (13).
4)
Remove O-ring and backup ring (14).
PC210, 230, 240-8
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Table of Contents
Troubleshooting
