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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. RemovetheLR3D-3355 overload relay (Figure 6), and
replace it withan LR3D-3322(X17 38 003 -1) type, with
thedialsetto18A.
5. RemovetheLR3D-086overload relay (Figure 6), and
replace it with an LR3D-076(X1738011-1) type,with
the dial set to1.7A.
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!
Toconnect thismachine to 440V three-phase,you must
purchase one LR3D-076 overloadrelay (Shop Fox PN:
X1738003-1)and one LR3D-3322overloadrelay (Shop Fox
PN: X17 38 011-1).
Figure 8. Motor 220V to 440V
connection.
Transformer