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Makita BFS441Z Technical Information page 9

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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Motor Section (Armature, Yoke unit, Brush holder)
ASSEMBLING
1) Assemble Motor section as described in Fig. 14.
Fig. 14
Note:
The notch on Yoke unit must be
positioned on the Armature fan side.
notch
3. Assemble Motor section to Housing (L) complete by engaging the notch of Yoke unit
to the protrusion of Housing (L) complete. Then make sure that Yoke unit and
Brush holder complete are exactly mounted to Housing (L) complete. (Fig. 14A, 14B)
Housing (L) complete
Fig. 14A
The flat portion of Brush holder complete must be at right angle
vertically as shown below when it is mounted to Housing (L)
complete.
Brush holder
complete
Housing (L)
complete
1. Insert Armature into Yoke unit
in the direction of the arrow.
Yoke unit
notch
Note:
Carefully insert Armature to Yoke unit
so as not to damage magent wire
or pinch your finger because Armature
will be pulled towards Yoke unit with
strong magnetic force of Yoke unit.
protrusion
notch
flat portion of
Brush holder complete
90 degrees
2. Mount Brush holder complete
Yoke unit
Fig. 14B
Terminal
P 9/14
to Armature.
Brush holder
complete
Yoke unit
Yoke unit must be
exactly set between
these ribs.

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