Makita Makstar BFT121F Technical Information page 4

R
epair
< 5 > Mounting motor section and gear assembly to housing
(1) Pass armature through yoke unit. And mount motor bracket to armature. See Fig. 6.
(2) Insert motor bracket of motor section into gear assembly. And lock motor section by turning motor bracket
clockwise. See Fig. 7.
Check the engagement of armature with spur gear 31 of gear assembly by turning armature with your hand.
Gear assembly
(3) Mount endbell complete to the motor section, assembled as illustrated in Fig. 7. And then, mount this motor section
to housing R with aligning the flat portion of yoke unit with the rib of housing R.
Connect the connector of switch unit with the connector of controller. See Fig. 8.
Endbell complete
Fig. 6.
Yoke unit
Armature
Fig. 7
Motor section
Motor bracket
Fig. 8
Connectors of controller
Flat portion
of yoke unit
Connect the connector of switch unit
(purple and yellow lead wire)
with the connector of controller.
(purple and yellow lead wire.)
<Note>
Motor bracket
Be careful, not to be pinched your finger
between yoke unit and armature.
Because, armature is pulled toward yoke
unit with the strong magnetic force.
Check the engagement of
armature with gear by
turning armature.
P 4 / 12
Accept the flat portion
of yoke unit with this
portion.
Controller