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P 1
2
/ 1
7
DISASSEMBLING
DISASSEMBLING
[3] DISASSEMBLY/ASSEMBLY
[3]-7 Controller
Controller can be removed as illustrated in Fig. 29.
Fig. 29
Fig. 30
Disconnect
Connector
From Controller.
Disassemble Handle section
by unscrewing four 5x25
Tapping screws.
Unscrewing 4x12
Tapping screws,
remove Controller
by levering up
with two Slotted
screwdrivers.
Handle section
[3]-8 Armature
(1) Disassemble Chuck section as illustrated in Fig. 2, Fig. 3, Fig. 4. However, no need to remove Tool holder.
(2) Disassemble Housing cover as illustrated in Fig. 9.
(3) In case of HM0871C, remove Active dynamic vibration abosorber after removing Housing cover. See Fig. 10.
(4) Disconnect Carbon brush from Armature’s commutator as illustrated in Fig. 30.
Carbon brush
Carbon brush
Spiral spring
Detach Spiral spring
from Carbon brush.
Note: It is not necessary to remove
Carbon brush completely from
Brush holder set.
By pulling Carbon brush,
disconnect its contact with
Armature's commutator.
Disassemble Rear cover from Motor housing.
Rear cover
4x18 Tapping screw(2pcs.)
Motor housing
R
epair
(5) Separate Motor housing by tapping with Plastic hammer as illustrated in Fig. 31R.
Fig. 31R
Fig. 31F
Tap Motor housing at the illustrated portion with Plastic hammer.
Armature can be removed together with Crank housing from
Motor housing.
Do not tap Motor housing at the edge portion
illustrated below.
The edge of Motor housing is so thin that it may
be broken.