Makita HK1820 Technical Information page 4

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epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Barrel, Tool Holder, Cylinder Section
DISASSEMBLY
1) Disassemble the Chuck section as described in Figs. 2, 3.
2) Disassemble Tool holder, Ring 25 and Cylinder section from Barrel as described in Figs. 4, 5, 6.
Fig. 4
Remove Crank housing cover.
M4x25 Hex socket
head bolt (1 pc)
Crank housing cover
Fig. 5
Remove Steel ball 4.8 (3 pcs) from each hole
of Ring 25 with slotted screwdriver.
Screwdriver magnetized
with 1R288
Ring 25
Fig. 6
Strike Tool holder against work bench.
Remove Ring spring 43
with slotted screwdriver.
Ring spring 43
Steel ball 4.8 (3 pcs)
Tool holder, Ring 25 and Cylinder section can now be removed
from Barrel. Remove O ring 48 from Barrel.
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Remove Barrel cover support
and Barrel cover.
Barrel cover
support
Barrel cover
Barrel section can now be separated from
Crank housing complete by unscrewing
four M5x25 Hex socket head bolts with 1R229.
Tool holder
Ring 25
Barrel
Turn counterclockwise.
1R229
M5x25 Hex socket
head bolt (4 pcs)
Cylinder section
Tool holder
Ring 25
P 4/17
Barrel section
O Ring 48
Barrel