18
Disassembly
Remove the breather plug, then remove
the hydraulic oil from the inside of hand
pump. (Fig. 38)
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During disassembly and assembly, be
careful not to damage each part.
Replace the O-ring, oil seal, and packing
with a new one.
Work in a clean workplace to prevent
entry of dust and foreign material.
CAUTION
䟿
(1)
a.
Fix the pump head with the vise.
(Fig. 40)
Fix the handle insertion part of the
pump head.
Compress the springs of accumulator by
using the spring compression tool (81).
(Fig. 39)
Securely assemble the spring compres-
sion jig to accumulator case and its
springs. (Fig. 41)
Compress the spring by tightening the two
bolts of spring compression tool evenly.
Compress the springs until there is no
spring pressure to the spring holder.
(Fig. 42)
Heat the spring holder with torch burner so
that the spring holder can be removed
easily. (Fig. 43)
b.
c.
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ճ
d.
8.5 Hand pump & Accumulator CP
Breather plug
Fig.38
22
27
53
52
28
ACCUMULATOR
TOOLS FOR DISASSEMBLY (OPTIONAL)
9840-10060
Spring compression tool (81)
9840-10040
Disassembling tool (82)
Fig.39
Fig.40
Fig.41
Spring holder
Fig.42