440V Connection - Grizzly G0486/G0487 Owner's Manual

440V Connection

To connect this machine to 440V three-phase
power, you must purchase two thermal overload
relays. Each machine model requires unique
relays, so refer to 440 Conversion Kits on Page
65 or the relay part numbers.
If you do not have three-phase power available for
your wide belt sander, you must install a phase
converter. We recommend using Grizzly Phase
Converter Model H3741 for Model G0486 and
Model H3742 for Model G0487.
Note: When using a phase converter, the power
from the manufactured power leg (sometimes
called the wild wire) can fluctuate. Connect the
manufactured power leg to the S terminal to pre-
vent damage to the transformer. The wire from the
S terminal can handle some fluctuation because
it goes directly to the motor. The power going to
the R and T terminals goes to the transformer and
must be consistent to prevent damage.
To wire the sander to 440V:
1.
DISCONNECT THE SANDER FROM THE
POWER SOURCE!
2.
Open the electrical box located on the back of
the machine.
3. On the transformer, remove the wire labeled
"1" connected to the 220V terminal, and
connect it to the 440V terminal as shown in
Figure 7.
Figure 7. 440V connections, Model G0486/
G0487.
-12-
Figure 8. Thermal overload relays.
6.
Wire the sanding belt, conveyor belt, and
table elevation motors as shown on the
diagrams on the inside of each motor wire
cover, or refer to Motor Wiring on Page 47.
G0486/G0487 Wide Belt Sander