Changing Speed Ranges - Grizzly G0838 Owner's Manual

4. Turn faceplate
Figure 25) until it is removed. If the spur cen-
ter is installed, it will be removed during this
process.
Faceplate
Figure 25. Removing faceplate.
Installing Faceplate
1. DISCONNECT MACHINE FROM POWER!
2.
Insert included indexing pin into an indexing
hole (see Figure 24) and rotate spindle until
pin engages to prevent spindle from turning.
3.
Thread faceplate clockwise onto spindle
shaft until secure against shoulder on spindle
shaft.
4.
Tighten/secure (2) set screws on faceplate
(see Figure 24 on Page 25).
To prevent faceplate and workpiece sepa-
rating from spindle during operation, head-
stock faceplate MUST be firmly threaded
onto spindle and secured in place by fully
tightening the two faceplate set screws.
If these instructions are not properly per-
formed, serious personal injury could occur.
Never resume turning operations without
making sure that index pin knob is disen-
gaged and spindle turns freely by hand.
Otherwise personal injury or property dam-
age could result.
-26-
counterclockwise (see
Knockout
Tool

Changing Speed Ranges

Changing Speed
Ranges
Your lathe has two speed ranges for maximum
turning options. These ranges are selected by
changing belt positions on the motor and spindle
pulleys (see Figure 26).
A = High Range
150-2900 RPM
= Low Range
B
100-1300 RPM
Motor
Figure 26. Speed range belt positions.
High range (A) is best when turning a workpiece
where a clean finish is required and only light cuts
are made. Low range (B), which has more torque,
is best when turning a workpiece where a lot of
material must be removed and a rough finish does
not matter. Use low range for spindle speeds of
1300 RPM or less. Use the speed dial to adjust
spindle speed within each range.
Refer to the chart below to choose the appropriate
RPM for your operation. Then choose the speed
range that will include the selected RPM.
Diameter Roughing
of Work- RPM
piece
Under 2" 1520
2–4" 760
4–6" 510
6–8" 380
8–10" 300
10–12" 255
12–14" 220
14–16" 190
Figure 27. Model G0838 speed
recommendations.
Model G0838 (Mfd. Since 10/17)
Spindle
A
B
General Finishing
Cutting RPM
RPM
3200 3200
1600 2480
1080 1650
810 1240
650 1000
540 830
460 710
400 620