Assembling The Torque Limiter - Makita HR4000C Technical Information

11)Assembling the torque limiter

a. Assemble the ball bearing 1207, flat washer 12(Outer dia. 24 mm)
and torque limiter complete into the spiral bevel gear 10. (See the figure 20.)
Note ) Use care not to miss the pin 4 for preventing
the round nut from turning.
b. Insert the flat washer 12(Outer dia. 24 mm)
and the circle clip(shaft) S-12 while setting the
two pieces of change keys into the key groove of
the straight bevel gear 12, and then insert the flat
washer 12(Outer dia. 28 mm) into the groove of the
change key.(See the figure 20.)
c. Slide downward the two pieces of change keys and
then insert the circle clip(shaft) S-12 into the groove
of the circle clip. (See the figures 20 and 21.)
Make sure that the circle clip has been securely inserted
in the groove.
Note ) Use care not to over-widen the circle clip(shaft) S-12.
d. Assemble the slide plate, compression spring 3 and
guide pin 2 into the change link.(See the figure 22.)
e. Insert the flat washer 12(Outer dia. 28 mm) into
the groove of the change link and then assemble
them on the ball bearing 608.(See the figure 22.)
Groove of the change key
Change
key
Flat washer 12
(Outer dia. 24 mm)
Change link
Slide plate
Compression spring 3
Guide pin 2
Ball bearing 608
Gear housing
Flat washer 12
(Outer dia. 28 mm)
Circle clip(shaft)
S-12
Flat washer 12
(Outer dia. 24 mm)
Groove of Circle clip
Round nut
Pin 4
Ball bearing 1207
Straight bevel gear 12
Figure 20
Figure 21
Groove of the change link
Flat washer 12
(Outer dia. 28 mm)
Figure 22
Torque
limiter
complete