-11-
W1737/W1738 Owner's Manual (Mfg. 10/09+)

ELECTRIC AL

440V Conversion (W1738)
Figure 7. Transformer 220V to 440V
connection.
Figure 6. Overload relay and
transformer location.
LR3D-3355 LR3D-086

To wire the W1738 to 440V, do these steps:

1. Disconnect the sander from the power source!
2. Open the electrical box located on the back of the
machine.
3. Remove the wire labeled “1” at the 220V terminal of
the control power transformer (Figure 6) and connect
it to the 440V terminal (Figure 7).
4. RemovetheLR3D-3355 overload relay (Figure 6), and
replace it withan LR3D-3322(X17 38 003 -1) type, with
thedialsetto18A.
5. RemovetheLR3D-086overload relay (Figure 6), and
replace it with an LR3D-076(X1738011-1) type,with
the dial set to1.7A.
6. Wire the sanding motor, conveyor motor, and table
elevation motor as shown on the diagrams on the
inside of each motor wire cover.
Note: The circled references on the diagrams repre-
sent labels on the wires. Also, Figure 8 has been pro-
vided for your reference and is current at the time
of writing. However, always use the diagram on the
wire cover that comes with your motor!
Toconnect thismachine to 440V three-phase,you must
purchase one LR3D-076 overloadrelay (Shop Fox PN:
X1738003-1)and one LR3D-3322overloadrelay (Shop Fox
PN: X17 38 011-1).
Figure 8. Motor 220V to 440V
connection.
Transformer