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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Handle Section, Tool Holder, Barrel Complete, Piston, Connecting Rod
DISASSEMBLING
1) Remove two M6x20 Hex socket head bolts and two 5x25 Tapping screws, and disconnect Lead unit from Controller.
Handle section can now be removed. (Fig. 4)
2) Put the machine on work bench as illustrated in Fig. 5, and disassemble Tool holder from Barrel complete by removing
four M6x25 Hex socket head bolts with Impact driver and 1R230. (Note: The tool image in Fig. 5 is Model HR4030C.)
Important: Be sure to loosen four M6x25 Hex socket head bolts a little using Hex wrench 5 and steel pipe before
unscrewing them with Impact driver and 1R230. Using Impact driver and 1R230 from the start will
result in breakage of 1R230.
The following four parts can now be taken out from Barrel complete: Nylon washer 29, Flat washer 29, Impact bolt,
O ring 48. (Fig. 5)
X ring 28 can be removed from Tool holder using small slotted screwdriver. (Fig. 5A)
3) Disassemble Barrel complete from Crank housing complete by unscrewing four M6x30 Hex socket head bolts in the
same way as described above in the step 2), then pull out Cylinder section from Crank housing complete. (Fig. 6)
4) Disconnect Connecting rod from Crank shaft in Crank housing complete, then take out Connecting rod and Piston
from Crank housing complete. O ring 22 can now be replaced. (Fig. 7)
Fig. 4
Controller
Lead unit
Fig. 6
Impact driver
1R230
*steel pipe
Hex wrench 5
*Attach an appropriate
steel pipe as extension
bar.
Handle section
Flat washer 6 (2 pcs)
Hex socket head
bolt M6x20 (2 pcs)
Tapping screw 5x25
(2 pcs)
Remove four M6x30
Hex socket head bolts by:
first loosening a little
using Hex wrench 5
and steel pipe,
then unscrewing with
Impact driver and
1R230.
Hex socket head
bolt M6x30 (4 pcs)
Barrel complete
Cylinder section
Key 4 (2 pcs)
Crank housing
complete
Fig. 5
Impact driver
1R230
*steel pipe
Hex wrench 5
*Attach an appropriate
steel pipe as extension
bar.
Fig. 7
Piston
O ring 22
Connecting rod
P 4 /13
Remove four M6x25
Hex socket head bolts by:
first loosening a little
using Hex wrench 5
and steel pipe,
then unscrewing with
Impact driver and
1R230.
Hex socket head
bolt M6x25 (4 pcs)
Tool holder
Nylon washer 29
Flat washer 29
Impact bolt
O ring 48
Barrel complete
Fig. 5A
X ring 28
Tool holder
Crank housing complete
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