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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Hammer Case Complete
DISASSEMBLING
ASSEMBLING
Spur gear 17
Assemble Hammer section
while engaging Spur gear 17
with Internal gear 43.
Assemble Hammer case complete
to Bearing box while aligning the
hollows of Bearing box to the
projections of Internal gear 43.
Then turn Hammer case complete
counterclockwise by hand and
tighten as firm as possible.
Set Bearing box to 134847-1 held with vise.
And then insert the ring portion of Internal
gear 43 into Bearing box.
Internal
gear 43
Vise
1R041
flat portions
Bearing box
Hammer case
complete
Hold the flat portion of Hammer
case complete in vise with 1R041.
Hammer case complete can
be disassembled as illustrated
below.
Vise
134847-1
Attach 134847-1 and 1R224 to 1R223,
and fit 134847-1 to the hex portion of
Bearing box.
Then turn 1R223 clockwise.
1R224
1R223
Bearing box
Hammer
Internal gear 43
Fig. 4
Fig. 5
(2) The removed Hammer case section is disassembled as illustrated in Fig. 4.
Hammer
section
Hammer case
complete
Hammer case
complete
Bearing box
(1) Use 134847-1 as a supporting jig for Bearing box and assemble Hammer case complete as illustrated in Fig. 5.
Internal
gear 43
hollow (6 pcs.)
projections (6pcs.)
134847-1
Bearing
box
Bearing
box
Internal gear 43
ring portion