Makita HM1801 Technical Information page 10

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Disassembling/Assembling Tool Retainer Section (cont.)
ASSEMBLING
Do the reverse of the disassembling steps.
Note:
When assembling Tool retainer to Tool holder 29, follow the instructions described below. (Fig. 25 - 28)
Fig. 25
Tool holder 29
A
Tool retainer shaft
A) See Fig. 26. As illustrated to left, when assembled to Tool holder 29, Tool retainer pole is pulled in the direction of
Barrel by the force of Compression spring 12, and the hole of Tool retainer pole is not aligned with the hole of Tool
holder 29.
Therefore, as illustrated to right, while aligning the two holes by sliding Tool retainer pole with slotted screwdriver,
assemble Tool retainer and Tool retainer shaft to Tool holder 29.
Fig. 26
Tool holder 29
Barrel
Compression spring 12
B) Insert Tool retainer shaft from the end chamfered more than the other. (Fig. 27)
C) Tool retainer shaft is not reversible when inserted into Tool retainer. As illustrated in Fig. 28, be sure to insert so that
the concave portion on Tool retainer shaft is positioned on the bit insertion hole of Tool holder 29.
Fig. 27
Tool retainer
Slotted screwdriver
B
C
Tool retainer pole
End chamfered more
Tool retainer shaft
Tool retainer
Pin 4 insertion hole
Insert tool retainer shaft by tapping with plastic hammer
till the Pin 4 insertion hole of Tool retainer shaft is aligned
with that of Tool retainer.
Fig. 28
Tool holder 29
Tool retainer shaft
P 10 / 18
Slotted screwdriver
Bit insertion hole
Concave portion