Makita HM1202 Technical Information page 3

(5) Dismounting of ball bearing 6304LLU from crank shaft.
Insert the repairing jig 1R234, 1R240 and 1R241 into the arbor on the crank shaft as per
the following illustration. And then, press with arbor press. So, Ball bearing 6304LLU can be dismounted.
(Mounting)
Make sure that the gears interlock each other, before pressing the armature
with arbor press into crank housing.
<2> Repairing on chuck section
Repairing on chuck section has to be made
with installing controller cover, because it is difficult
to keep the machine standing without it.
(Dismounting)
(1) Pull tool holder cover down in the direction
of the motor housing.
Dismount tool holder cap.
And then take off tool holder cover.
1R234
1R034
Arbor press
Arbor press
1R032 - 1R037
1R240
1R241
Crank shaft
Ball bearing 6304LLU
Base of arbor press
P 3 / 14
Tool holder cap
Tool holder cover