Makita TW0350 Technical Information page 4

R
epair
( 2 )After removing steel ball 6.4, loosen the handle of "No.1R045 Gear extractor" slowly until the spindle is free
from the compression spring 28.
( 3 )Putting the hammer unit as illustrated in Fig. 7R, remove the following parts.
* Hammer
* Compression
spring 28
* Spring holder
* 19 pcs. of steel
ball 4
* Spindle
< 5 > Assembling hammer unit
( 1 ) Put 19 pcs. of steel ball 4 in the groove of spindle's gear portion. See Fig. 8.
( 2 ) Put spring holder, compression spring 28 and hammer on the spindle. See Fig. 9.
( 3 ) Pressing the hammer to the gear side, align the top of cam groove of spindle with the opening of hammer.
And mount 2 pcs. of steel ball 6.4 as illustrated in Fig. 10R.
The assembling of hammer unit has been finished at this step.
19 pcs. of steel ball 4
Apply grease to the groove
of spindles's gear portion for
prevention against the falling
off of steel ball.
Do not hold the hammer unit as illustrated
in Fig. 10F, when pressing hammer to
the gear side.
The steel ball 4 can fall off the groove
of spindle's gear portion and scatter in
the hammer.
Hammer
Compression
spring 28
Spring holder
19 pcs. of steel ball 4
Spindle
Fig. 7R
Fig. 8
Fig.10F
Hammer
Compression
spring 28
Spring holder
19 pcs. of steel ball 4
Spindle
Fig. 9
P 4 / 8
Spindle
The steel balls 4
fall off the spindle
and can be lost.
Spring holder
Compression
spring 28
Hammer
Fig. 7F
Steel ball 6.4
Steel ball 6.4
Fig.10R