Makita BST220 Technical Information page 6

R
epair
[4] DISASSEMBLY/ ASSEMBLY
[4]-4. Switch, Trigger
ASSEMBLING
1) Hook Torsion spring 3 with the protrusion of Housing L. (Fig. 20)
2) Attach the short end to the wall of Housing L. (Fig. 21)
3) After inserting Switch to twin protrusion, set Trigger and the linked parts in place as illustrated in Fig. 22.
Fig. 20
twin protrusion for
Switch installation
Housing L
Fig. 22
twin protrusion for Switch installation
Switch button
Apply a little amount of
Makita grease N No.2 to
the contact area of
Release plate and Leaf
spring (designated by black).
Put the hook portion of Leaf spring
along the inside of Trigger.
Protrusion for
Torsion spring 3
short end
Torsion spring 3
long end
long tail of Torsion spring 3
Switch
Leaf spring Trigger
Fig. 21
The short end of Torsion
spring 3 has to be behind
the wall of Housing L.
Put the long tail of Torsion spring 3 to the
upward of narrow width of Leaf spring.
Release plate
Pin 3
narrow width
Put the bend portion of Release plate between
Switch button and wide width of Leaf spring.
shape of Leaf spring
wide width
hook portion
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