Grizzly G3616 Owner's Manual page 25

To adjust the V-belts for the vertical spindle:
1. Examine the Vertical Spindle Speed Chart
(Figure 14 or on the front of the mill above
the vertical spindle) to find the closest match
to your needed RPM.
VERTICAL SPINDLE SPEED CHART
SPINDLE
A
B
C
D
DE 270
CE 390
DF 550
BE 615
CF 860
Figure 14. Vertical spindle speed chart.
Always disconnect power
to the machine before
performing RPM adjust-
ments. Failure to do this
may result in serious per-
sonal injury.
2. Make sure the main power is OFF to the
machine before proceeding any further, as
you will be working with the spindle V-belts
and this is a dangerous area.
3. Remove the access panel to the vertical
spindle pulleys.
4. Loosen the motor nut next to the handle,
loosen the center pulley nut (see Figure 15),
and pull the motor forward to release tension
on the V-belts.
5. Move the front belt to the desired position.
You will need to move the center pulley set in
order to accomplish this.
6.
Move the center pulley set back to position
and tighten the nut.
G3616/G3617 Mill
MOTOR
E
F
G
DG 930
AF 1800
BG 1960
AG 2950
1. Loosen these nuts.
2. Pull handle
towards front of
machine.
Figure 15. Vertical spindle access panel.
7.
Move the rear V-belt to the appropriate pulley
set for the given RPM.
8.
Push the motor back into place and tighten
the nut.
9. Replace the access cover by inserting the
hand screws, then connect the machine to
the power source.
To adjust the V-belts for the horizontal spin-
dle:
1.
Examine the Horizontal Spindle Speed Chart
(Figure 16 or on the access cover at the rear
of the mill) to find the closest match to your
needed RPM.
2.
Make sure the main power is disconnected
from the machine before proceeding any fur-
ther, as you will be working with the spindle
V-belts and this is a dangerous area.
HORIZONTAL SPINDLE SPEED CHART
1 AG 72
2 BG 170
3 CG 210
4 AF 240
5 AE 290
6 BF 550
7 CE 830
8 BD 1300
Figure 16. Horizontal spindle speed chart.
60 HZ
R.P.M
UPPER
D
E
F
G
MIDDLE
C
B
A
MOTOR
23