Makita HM0871C Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Chuck section
DISASSEMBLING
(1) Remove Tool holder cap as illustrated in Fig. 2.
Fig. 2
Remove Handle section by loosening four 5x25
Tapping screws, and then disconnect Lead unit
from Controller.
Note: It is not necessary to disconnect Switch and
Power supply cord.
Controller
Lead unit
5x25 Tapping screw (4pcs.)
(2) Disassemble Chuck section as illustrated in Figs. 3 and 4.
Fig. 3
1. Pulling down Chuck cover, install 1R363
in the same way of SDS-MAX bit installation.
Socket wrench
1R363
Spring guide
Flat washer 28
Fig. 4
While pressing down Spring
guide, push out Tool retainers
by screwdriver inserted from
Tool holder.
Tool retainer
Spring
guide
Stand the machine upright.
Handle section
2. Press down Flat washer 28 by
turning Socket wrench to make
Ring spring 25 free from the
pressure by Flat washer 28.
3. Remove Ring spring 25 using
1R003 with 1R212.
Ring spring 25
1R212
1R003
Remove Spring guide,
Compression spring 52
and Plate.
Spring
guide
Compression
spring 52
Plate
While pressing down Chuck cover,
remove Tool holder cap.
And then, remove Chuck cover.
Tool holder cap
Chuck cover
4. Remove Flat washer 28, Rubber ring 28 and Chuck ring.
Remove four Steel balls 4.8
with Slotted screwdriver
magnetized by 1R288.
Screwdriver magnetized
by 1R288
Steel ball 4.8
(4pcs.)
P 3/ 17
Flat washer 28
Rubber ring 28
Chuck ring
Ring spring 25
Remove Change ring
together with Lock ring.
And separate Lock ring
from Change ring.
Lock ring
Change ring