Speed change – Grizzly G7946 User Manual
Page 14
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G7945/46 Radial Drill Press
SECTION 5: ADJUSTMENTS
Unplug the drill press before changing
speeds.
The drill press has 5 speeds ranging
from 550 to 3470 R.P.M. There is a speed chart
located under the belt guard. Refer to this chart
when setting a speed.
1.
Loosen the belt tension lock knob on the side
of the headstock. See
Figure 10
.
2.
Pivot the motor to take tension off the V-belt.
3.
Determine the desired speed on the chart
and move the V-belt to the desired V-
grooves on the motor and spindle pulleys.
4.
Pivot the motor toward the back of the head-
stock, the motor support rod is spring loaded
and will follow the motor. Tighten the lock
knob once the desired V-belt tension is
achieved.
5.
Close the cover.
Never operate drill press
with belt cover in the
open position. Your hand
may become trapped in a
belt and serious personal
injury will occur.
Speed Change
Figure 10.
Loosening the lock knob.
Disconnect power to the
machine when perform-
ing any maintenance,
assembly or adjust-
ments. Failure to do this
may result in serious
personal injury.
Wear safety glasses
during the entire adjust-
ment process. Failure to
comply may result in
serious personal injury.
Keep loose clothing
rolled up and out of the
way of machinery and
keep hair pulled back.