Changing Spindle Speed; Installing/Removing Chuck Arbor - Grizzly T31739 Owner's Manual

Changing Spindle
Speed
The Model T31739 has a variable-speed spin-
dle that operates between 400-2700 RPM. This
speed range is achieved using an adjustable pul-
ley system that is controlled by moving the spindle
speed lever shown in Figure 22.
The digital readout on the front of the headstock
displays the spindle RPM. Pull the spindle speed
lever forward to increase spindle speed. Push the
lever backward to decrease spindle speed.
Note: Spindle speed can only be adjusted when
the spindle is running.
Speed
Digital Readout
Spindle Speed
Lever
Figure 22. Spindle speed lever and DRO.
-22-
Installing/Removing
Chuck Arbor
Usually, once the chuck and arbor have been
properly mounted together, they are considered
semi-permanent connections. If you would like to
install a different chuck, we recommend getting a
new arbor for that chuck.
Installing Drill Chuck and Arbor
1. DISCONNECT MACHINE FROM POWER!
2.
Rotate chuck on arbor until chuck jaws retract
into drill chuck body.
3.
Slide arbor into spindle socket while slowly
rotating chuck to line up tang on arbor with
slot in socket (see Figure 23).
Spindle Socket
Figure 23. Spindle, arbor, and chuck.
4. Strike face of chuck from below with rubber-
faced mallet to seat arbor in spindle.
5. Check seat by gently pulling down on chuck.
Scan this code to see a video of the above
process!
Model T31739 (Mfd. Since 11/19)
Arbor Tang