Makita BDA341 Technical Information page 7

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Motor Section (cont.)
ASSEMBLING
(1) Assemble Armature as illustrated in Fig. 21R.
Note: Pay attention to the position of notch of Yoke unit.
It has to be located on the opposite side of Commutator.
(2) Assemble Brush holder to Armature's Commutator end.
However, still keep Carbon brush free from the pressure of
Torsion spring of Brush holder in this step.
(2) Assemble the Motor section to Housing set (L) as illustrated
in Figs. 22 and 23.
Fig. 22
Protrusion for fitting to
the notch of Yoke unit
Switch side
Heat sink
Fitting the notch of Yoke unit to the protrusion of Housing set (L),
assemble the Motor section.
[3]-5. Assembling F/R Change Lever
Fix F/R Change lever to Switch as illustrated in Fig. 24.
Fig. 24
FET
Protrusion of Switch
for fitting F/R Change
Lever's concave
[3]-6. Disassembling Terminal
Flag terminal for this product is equipped with Stopper for firm connection. Remove Flag terminal as illustrated in Fig. 25.
Fig. 25
Flag terminal
Housing set (L)
Yoke unit
notch for fitting
to Housing set (L)
Concave of F/R change lever
for fitting to protrusion of
Switch
Stopper
(for firm connection of Flag Terminal)
1. While pushing Stopper with thin screwdriver,
hitch the Flag terminal with the screwdriver.
2. Pull off the Flag terminal.
Fig. 21R
Correct
Commutator
of Armature
Fig. 23
Motor Section
Brush
Armature
holder
complete
Brush holder
Fig. 21F
Wrong
Commutator
of Armature
Notch of
Yoke unit
90 degrees
Carbon brush
Mount Brush holder complete on
Commutator so that the angle of two
Carbon brushes can be 90 degrees as
illustrated above.
P 7/ 8
Notch of
Yoke unit
Housing
set (R)
Housing
set (L)