Makita 8391D Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Gear Ass'y, DC Motor
DISASSEMBLING
(1) Remove Keyless drill chuck.
(2) Gear ass'y and DC Motor can be disassembled in the order of Figs. 3, 4, 5, 6 and 7.
Fig. 3
Housing set (R)
Housing set (L)
Disassemble Housing set (R) by unscrewing
3x16 Tapping screws (9 pcs.).
Fig. 5
notch of Speed
change lever
ass'y
Remove Speed change
lever ass'y from Gear
ass'y.
Fig. 7
M3x6 Pan head
screw (2pcs.)
Remove DC motor from Motor
bracket by unscrewing M3x6
Pan head screws (2pcs.).
Now DC motor can be replaced.
3x16 Tapping
screw (9pcs.)
protrusion of
Gear ass'y
Motor bracket
DC motor
Fig. 4
Housing set (L)
Remove Gear ass'y, Speed change lever ass'y and
DC motor with Switch from Housing set (L) as
illustrated above.
Fig. 6
Motor bracket
Pull off Gear ass'y while turning
it clockwise viewed from DC
motor side.
Now Gear ass'y can be replaced.
P 3/ 7
Gear ass'y
Speed change lever ass'y
DC motor
Gear ass'y
DC motor