Grizzly G0486/G0487 owner manual 440V Connection, To wire the sander to

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.

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4.Refer to Figure 8 and find the power panel on your machine.

5.Swap out the applicable thermal relays and contactors from the conversion kit at the loca- tions shown in Figure 8, and set them to the overload values listed.

—For the G0486, use conversion kit #P04868139 and change out two relays.

—For the G0487, use conversion kit #P04878139. Change out two relays and change the two LC1-D40 sanding motor con- tactors with two LC1-D386 contactors.

G0486

LR3D-216
Set to:	LR3D-086
(12-18A)
	Set to:
	(2.5-4A)
Change Sanding Motor
Contactors (G0487 only)

G0487

LR3D-226
Set to:
(16-24A)	LR3D-086
	Set to:
	(2.5-4A)

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