Makita MakStar BFT120F Technical Information page 3

R
epair
< 3 > Assembling bit holder section
Mount the parts to spindle in the following order.
1. 2 pcs. of steel balls 3
2. Sleeve
And then, secure the above parts with ring spring. See Fig. 1A and Fig. 1
< 4 > Separating motor section from gear assembly
(1) Take off brush holder caps and carbon brushes, and then unscrew 10 pcs. of pan head screws M3x20. See Fig. 2.
(2) Take off housing L. And then, disconnect the connector of switch unit. Separate endbell complete from motor
section. See Fig. 3.
Fig. 2
Pan head screws M3x20
(3) Separate motor section from gear assembly by turning motor bracket anti-clockwise. See Fig. 4.
Motor bracket
(4) Remove motor bracket with 1R269 "Bearing extractor". Then, armature can be separated from yoke unit.
See Fig. 5.
1R269 Bearing extractor
3. Compression spring 13
4. Flat washer 11
Carbon brush
Brush holder cap
Fig. 4.
Fig. 5
Motor bracket
Disconnected
connector of
switch unit
Housing L
Gear assembly
Motor section
Yoke unit
Armature
P 3 / 12
Fig. 3
Endbell
complete