V-Belt Tension; Speed Changes - Grizzly G5913Z Owner's Manual

V-Belt Tension

You should be able to deflect the belt
moderate finger pressure, as shown in Figure 23.
This may seem tight compared to most other V-
belts, but since the belt is small and runs fast, this
amount of tension is necessary. The V-belt will
slip if too loose, and will squeal or cause vibration
if too tight. Adjust the tension if necessary.
Deflection
Figure 23. Checking belt deflection.
Always disconnect power
to the machine before
performing maintenance.
Failure to do this may
result in serious person-
al injury.
To adjust V-belt tension:
1.
DISCONNECT SHAPER FROM POWER!
2.
Make sure the pulleys are properly aligned.
3.
Loosen the two motor mount plate bolts and
slide the motor left or right to modify the belt
tension. Keep the pulleys aligned.
4. Tighten the motor mount plate bolts, test the
tension, and check the pulleys.
5. Repeat steps 2-3 until tension is correct and
the pulleys are aligned.
-22-
⁄ " with
1
4
Pulley
Pulley

Speed Changes

The Model G5913Z/G7215Z is equipped with a V-
belt drive system that controls the speeds.
To change spindle speeds:
1. DISCONNECT SHAPER FROM POWER!
2.
Loosen the two motor plate bolts, and slide
the motor toward the spindle assembly.
DO NOT take the bolts out.
3.
Select the desired speed. There are four
speeds: 3600 RPM, 5100 RPM, 8000 RPM,
10,000 RPM. Figure 24 shows the belt posi-
tions for each available speed.
Figure 24. Spindle speed adjustment.
4.
Align the belt along the appropriate pulley
grooves.
5.
Slide the motor back into position and tighten
the belt. When the belt is properly tensioned,
there should be approximately
tion in the center of the belt when you press
it with moderate pressure.
6. Tighten all the adjusting bolts.
7. Spin the pulley to ensure proper tracking.
G5913Z/G7215Z Heavy-Duty Shaper
⁄ " of deflec-
1
4