Grizzly G9249 - Manual (Page 37)

g9249 12" x 37" Belt drive gap Bed lathe
-35-
3. release V-belt tension by pulling the belt
tensioning lever forward, lift the headstock
cover, then move the motor and spindle
V-belts to the positions indicated by the chart
in
figure 49.
for Example: If you require a spindle speed
of 655 RPM, position the motor V-belt in the
"
B" position and the spindle V-belt in the "3"
position, as shown in Figure 50.
Note: In the example above, the back gears
are not engaged.
4. Close the headstock cover, then re-tension
the V-belts by pushing the belt tensioning
lever all the way back.
Always use the correct spindle speed and
feed rate for your lathe operation to avoid
the risk of injury to yourself or others from
ejected workpieces or broken tools.
figure 50. V-belt positions.
spindle V-Belt in
" 3" position
Motor V-Belt in
" B" position
Belt
tensioning
lever
To engage the back gears:
1. disConneCt lAthe FroM poWer!
2. pull out the lock pin shown in figure 51, and
rotate it 90° so that it stays in the "out" posi-
tion.
figure 51. Back gear lever and lock pin.
lock pin
Back gear lever
3. pull the back gear lever forward to engage
the back gears with the spindle gears.
Note: It may be necessary to jog the spindle
by hand to properly mesh the gears.
To disengage the back gears:
1. disConneCt lAthe FroM poWer!
2. push the back gear lever back to disengage
the back gears from the spindle gears.
3. rotate the lock pin 90°, then rotate the
spindle gear until the lock pins slips into the
indent on the pulley.
4. Move the spindle back and forth by hand to
make sure the lock pin is securely seated in
the pulley.