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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-6. Impact bolt in Torque limiter section (cont.)
ASSEMBLING
(1) Assemble Impact bolt section to Tool holder (guide) complete as drawn in Fig. 44A/ 44B.
Fig. 44A
Tool holder complete (140265-3)
Bit installation side
Note: These components
are directional.
Fig. 44B
Tool holder guide complete (140266-1)
Bit installation
side
Note: These components
are directional.
(2) Push Ring spring 28 into the inner groove of Tool holder (guide) complete as drawn in Fig. 45.
Note: Do not reuse the removed Ring spring 28 if it is deformed or damaged.
Fig. 45
Piston cylinder
as a jig
end gap
Ring spring 28
Tool holder (guide)
complete
hole
Note: 2
Tool holder Guide)
complete
Ring spring 28
end gap
Impact bolt section in Tool holder complete for BHR242
Sleeve 9B
Impact bolt A
ø9mm
[cross-sectional view]
Impact bolt section in Tool holder guide complete for BHR243
Sleeve 9B
Impact bolt B
long
[cross-sectional view]
Note: 1. Use an extra Piston cylinder as a jig. Never use Piston cylinder that is
to be assembled to the machine.
2. The end gap of Ring spring 28 must not be placed at the two holes of
Tool holder (guide) complete.
Note: 1
hole
Inner groove of
Tool holder (guide)
complete
[Correct]
[Wrong]
Washer 10
Compression
spring 20
ø9.5mm
Washer 10
Compression
spring 20
short
Piston cylinder as a jig
Ring spring 28
P 15/ 25
O ring case B with
O ring 9 fit inside
Inner housing side
O ring case B with
O ring 9 fit inside
Inner housing side
O ring case B
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