Grizzly G0796 Owner's Manual page 38

8. Refer to spindle speed chart on front of head-
stock (see Figure 36), and position V-belt on
pulleys for desired spindle speed.
SPINDLE SPEED CHART
1
SPINDLE PULLEY
SPEED
RANGE
1
LOW 80
HIGH 660
Figure 36. Model G0796 spindle speed chart.
9. Push adjustment lever backward with moder-
ate force to re-tension V-belt, then re-tighten
two lock levers to secure motor (see Figure
35 on Page 35).
10. Replace two belt housing side covers before
re-connecting mill to power.
To avoid entanglement hazards, always
ensure belt housing safety covers are firmly
in place before connecting the mill to power.
Setting G0797 Spindle Speed
The Model G0797 has variable spindle speeds
from 60 to 4200 RPM. Setting the spindle speed
involves 1) Selecting the spindle speed range,
and 2) using the variable-speed handwheel to
select the spindle speed.
For Model G0797 ONLY, always make sure
that spindle rotation has started and is at
a constant speed before using variable-
speed handwheel to adjust spindle speed.
Otherwise, moving parts inside belt hous-
ing could be damaged and void warranty.
-36-
2
3
4
MOTOR PULLEY
BELT POSITION
2 3 4
135 210 325
1110 1750 2720
To set Model G0797 spindle speed:
1. Make sure spindle is completely stopped,
then use chart below to find spindle speed
range that includes required spindle speed
for your operation (see Figure 37).
2.
Pull spindle speed range selector knob (see
Figure 37) out, move to HIGH or LOW posi-
tion, then release knob to seat knob pin in
Lever 1
detent.
Note: If it is difficult to move range selector
knob, rotate spindle by hand to help mesh
F
E
gears until selector moves freely.
Model G0797 Spindle Speed Ranges
Low Range
High Range
Figure 37. Model G0797 available spindle
speeds and location of range selector knob.
3. Use spindle switch to start spindle rotation.
4. Slowly rotate variable-speed handwheel
shown in Figure 38 until desired speed is dis-
played in indicator for speed range selected.
High-Low Range
Speed Indicators
Figure 38. Location of Model G0797 variable-
speed controls.
Model G0796/G0797 (Mfd. Since 1/18)
HIGH/LOW RANGE SE
HIGH RANGE: 1E, 2H
Place Lever 2 in position G,
Lever 1 to position E. Turn b
until pulley locks into place,
Lever 2 to position H.
Lever 2
LOW RANGE: 1F, 2G
Place Lever 1 in position F a
position G.
Changing HIGH/LOW
reverse spindle rotation.
G H
60–500 RPM
500–4200 RPM
Spindle Speed
Range Selector Knob
Variable-Speed
Handwheel