Makita Makstar BFT121F Technical Information page 8

R
epair
( 6 ) Mount internal gear case to gear case complete with aligning the boss of internal gear case with the concave
portion of gear case complete. Secure internal gear case with 4 pcs. of taping screws 3x12. See Fig. 21.
( 7 ) Mount spur gear 10 complete and 3 pcs. of spur gears 31, and mount lock washer by turning it clockwise.
And then, mount torque plate to gear case complete. See Fig. 22.
Spur gear 10
complete
( 8 ) Put compression spring 2 into switch lever, and apply MAKITA grease N.No.2 to both upper and lower side
of switch lever. Mount this switch lever to gear case complete. See Fig. 23.
( 9 ) And then, pushing holder plate toward armature side, secure it with 1 pc. of tapping screw bind PT3x10.
See Fig. 24.
(10) Pushing switch unit toward armature side, secure it on holder plate with 1 pc. of pan head screw M2.3 x 10.
See Fig. 25. The fastening torque for pan head screw M2.3 x 10 is approx. 0.3 - 0.4 N.m.
Torque plate
Gear case complete
Compression
spring 2
Switch lever
Holder plate
Tapping screw
bind PT3x10
Switch unit
Pan head
screw M2.3 x 10
Fig. 21
Concave portion of
gear case assembly
Gear case complete
Fig. 22
Lock washer
Spur gears 31
Fig. 23
Boss portion of
internal gear case
Internal gear case
Torque plate
Bottom view of gear case complete
Fig. 24
Torque plate
Push toward
armature side.
Switch lever
Push toward
armature side.
Fig. 25
Push toward
armature side.
Tapping
screws 3x12
Tapping screw bind PT3x10
Holder plate
Pan head
screw M2.3 x 10
Switch unit
P 8 / 12