Makita HM1242C Technical Information page 4

R
epair
(2) Pulling tool holder cover down
in the direction of the motor housing,
slide the cut of ring spring 29 in the
direction of the cut of tool holder cover.
And expand the cut of ring spring 29 with,
repairing tool No.1R212, lifting it with
driver as illustrated in Fig.8.
(3) Tool holder, roller guide and pin 6 can be
removed as a set, with removing
ring spring 29.
Roller guide can be removed from tool
holder cover, with taking off pin 6.
<3> Repairing of piston and striker
Take off only handle, not remove controller cover.
(Dismounting)
(1) Take off change ring after removing
chuck section.
And then, take off ring spring 46
with pawl for retaining ring .
Dismount housing cover.
(2) Loosen 4 pcs. of hex socket head bolt M8x30.
Then barrel can be removed together with
tool holder.
Ring spring 29
Tool holder cover
Housing cover
Hex socket head bolt M8x30
(4 pcs.)
Barrel
No.1R212
Fig.8
Pin 6
Roller guide
Fig.9
Fig.10
Fig.11
P 4 / 12
Cut of tool
holder cover
Tool holder cover
Ring spring 46
No.1R212
Pawl for retaining ring