-80-
Model G0740 (Mfg. Since 11/12)
3. Adjust the hex nuts on the motor mount
bolts shown in Figure 123, until there is
approximately
3
⁄4" deflection of the V-belts
when moderate pressure is applied midway
between the pulleys.
4. Firmly tighten the hex nuts to secure the set-
ting, then re-install the covers.
Pulley
Deflection
Pulley
Figure 123. Adjusting V-belt tension.
Motor Mount
Hex Nuts & Bolts
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.
Tools Needed: Qty
Phillips Screwdriver #2 ...................................... 1
Hex Wrench 6mm .............................................. 1
To adjust the brake and brake switch:
1. DISCONNECT LATHE FROM POWER!
2. Put on a respirator and eye protection to pro-
tect yourself from hazardous brake dust.
3. Remove the motor access panel from the left
cabinet.
4. Measure the remaining brake band lining
at the thinnest point, which is usually at the
8 o'clock position, as shown in Figure 124.
Brake & Switch
When the brake band is new, the lining is approxi-
mately 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.
Figure 124. Minimum brake belt thickness.
3mm
3
⁄4"
