-37-
11. Push the pedal lever down to verify that the cam
lobe pushes the kill switch plunger in.
12. When pushed in, you should hear the switch click.
13. Reinstall the cover, test the brake operation.
Leadscrew Shear Pin
Replacement
To replace the shear pin :
1. Disconnect Lathe from POWER !
2. Remove the front and side feed access covers,
as shown in Figure 102.
7. Use the magnet to remove the shear pin head,
then rotate the lathe spindle to line up the inner
and outer bores. Next, use the magnet to remove
the other half of the broken shear pin when it
becomes visible.
8. Insert a blow gun tip into the shear pin hole, blow
out the hole with compressed air, and put a drop
of oil in the hole.
9. Insert the new shear pin into the bore, as shown
in Figure 105.
Figure 103. Shroud washer / pin alignment.
Shear Pin Head
Cutout
Shroud Washer
3. Rotate the shroud washer so the cutout lines up
with the shear pin head, as shown in Figure 103.
4. Put on safety glasses.
5. Remove the retaining ring from its groove and
place it in the rear-most position away from the
shroud washer.
6. Move the shroud washer away from the shear pin
(to the rear position), so there is enough of a gap
to remove the shear pin.
Figure 102. Feed access covers removed.
Feed Access Cover
Figure 105. New shear pin installed in bore.
New Pin
Figure 104. Shear pin access.
Gap
Rear
Position
10. With the pin completely seated in the bore and
the head
fl
ush with the leadscrew shoulder, slide
the shroud washer against the shoulder, then
rotate the washer 180° until it covers the head of
the shear pin, as shown in Figure 106.
Figure 106. Shroud washer positioning.
Rotate Washer
