-36-
4. Firmly tighten the hex nuts (loosened in the
previous step) against the motor mount plate to
prevent it from moving out of adjustment during
operation, then reinstall the motor cover.
Brake & Switch
As the brake lining wears, the foot pedal develops
more travel. If the brake band is not adjusted to
compensate for normal wear, the limit switch will
still turn the lathe off, but the spindle will not stop as
quickly. It is especially important that the brake is kept
properly adjusted so you can quickly stop the spindle
in an emergency.
To adjust the brake and brake switch :
1. Disconnect Lathe from POWER !
2. Put on a respirator and eye protection to protect
yourself from hazardous brake dust.
3. Remove the motor cover shown in Figure 97.
4. Measure the remaining brake band lining at the
thinnest point, which is usually at the 8 o'clock
position, as shown in Figure 98.
5. Remove pedal stop shown in Figure 99.
6. Move the brake band to the right one hole, and
reinstall the pedal stop, tightening it until it is just
snug.
7. Firmly push the pedal lever (Figure 100) to the
right until it stops and the brake band is fully
clamped around the brake hub.
8. Tap the pedal stop into position so there is
approximately a 25mm gap between the pedal
lever and the stop (see Figure 100).
Figure 97. V-belt adjustment.
Motor Mount Bolts
De
fl
ection
Pulley
3mm
Figure 98. Minimum brake band lining thickness.
Figure99. Brake linkage adjustments.
Move Brake Band to the
Right to Adjust Brake
Move Pedal Stop Left or Right
to Adjust Foot Pedal Height
Cap Screw
When the brake band is new, the lining is approximately
6mm thick. If the lining thickness wears to 3mm or
less, the brake band must be replaced; otherwise, the
rivets that secure the lining to the band will soon grind
into the brake hub. If the hub becomes damaged, it
must be replaced, which will substantially increase
the cost of repair, compared to just replacing the
brake band.
9. Tighten the cap screw on the pedal stop.
10. Locate the motor kill switch (shown in Figure 101)
at the tailstock end of the lathe.
Figure 100. Pedal travel adjustment.
25mm
Pedal Stop
Pedal Lever
Figure 101. Motor kill switch.
Plunger and
Cam Lobe
Motor Kill
Switch
