Adjusting Spindle Speed - Grizzly G0726 Owner's Manual

12" x 54" milling machine w/power feeds & digital readout
Table of Contents

Advertisement

Adjusting Spindle Speed

1.
Make sure spindle switch is in the OFF posi-
tion and spindle is stopped.
2.
Select the range in chart below that includes
desired spindle speed.
Range
Low Range
High Range
Figure 38. Spindle speed ranges.
NOTICE
To avoid damage to the drive system, make
sure the spindle motor is turned OFF and
the spindle is stopped BEFORE you change
the spindle speed range.
Note: In the next step, make sure locking pin
is seated in indent for desired speed range.
3.
Press spindle speed range selector handle in
toward head to retract locking pin and move
selector (see Figure 39).
Note: Move handle to the forward position
for high range, or move it to the rear position
for low range.
As you move selector handle, it may be
necessary to rotate the spindle by hand to
engage gears.
Figure 39. Spindle speed range selector.
Model G0726 (Mfg. Since 7/11)
RPM
50–420
420–3750
Spindle Speed
Range Selector
Always ensure the spindle is rotating
BEFORE
using
handwheel. Otherwise, the variable speed
system can be damaged.
4.
Start spindle rotation, then rotate variable
speed handwheel until desired spindle speed
is displayed in speed readout window on
head, shown in Figure 40.
Note: The window on the left is for low
range, and the window on the right is for
high range.
Speed Readout
Windows
Figure 40. Variable speed handwheel and
readout windows.
the
variable
speed
Variable
Speed
Handwheel
-35-

Advertisement

Table of Contents
loading

Table of Contents