Model G0799 G0800 (Mfd. Since 11/17)
-35-
Changing Speed
Ranges
The pulley belt configurations on this lathe provide
two speed ranges (see
Figure 38).
Note: To maximize spindle torque, use low spin-
dle speed range for spindle speeds of 1000 RPM
or less.
Refer to speed recommendations chart in
Figure
39 to choose appropriate RPM for your opera-
tion. Then choose speed range that will include
selected RPM.
Diameter
of Work-
piece
Roughing
RPM
General
Cutting
RPM
Finishing
RPM
Under 2"
1600
3500
3500
2–4"
800
1600
2500
4–6"
500
1100
1700
6–8"
400
800
1250
8–10"
300
700
1000
10–12"
250
550
900
12–16"
200
450
680
16–20"
150
350
550
20–24"
100
280
400
Outboard
80
200
300
Figure 39. Speed recommendations.
Figure 38. Speed range belt positions.
Always choose correct spindle speed for
an operation. Using wrong speed may lead
to workpiece being thrown at high speed,
causing fatal or severe impact injuries.
3. Loosen belt tension lock handle (see Figure
41).
Figure 40. Belt access cover removed.
4. Use belt tension lever (see Figure 41) to
lift motor assembly all the way up, then re-
tighten belt tension lock handle—this will hold
motor in place while you change belt position.
To change speed ranges:
1. DISCONNECT MACHINE FROM POWER!
2. Open belt access cover, as shown in
Figure 40.
Figure 41. Belt tension lever and lock handle.
Belt Tension
Lever
Belt Tension
Lock Handle
