Makita BHP453 Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Gear Ass'y and DC Motor
DISASSEMBLING
(1) Remove Keyless drill chuck.
(2) Gear ass'y and DC motor can be disassembled in the order of Figs. 2 to 6.
Fig. 2
Housing set (R)
Housing set (L)
Disassemble Housing set (R) by removing
Bind PT3x16 tapping screws (9 pcs.).
Fig. 4
notch of Speed
change lever
ass'y
Remove Speed change
lever ass'y from Gear
ass'y.
Fig. 6
M4x8 Pan head screw (2 pcs.)
Remove DC motor with Cap from Motor
bracket by removing M4x8 Pan head screws
(2 pcs.).
Remove Cap from DC motor.
Fig. 3
Bind PT3x16
tapping screw
(9 pcs.)
Housing set (L)
Fig. 5
protrusion of
Gear ass'y
Motor bracket
DC motor
Cap
Remove Gear ass'y, Speed change lever ass'y and
DC motor with Switch from Housing set (L) as
illustrated above.
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/ 6
Gear ass'y
Speed change lever ass'y
DC motor
Gear ass'y
DC motor