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WM45H/E PLASTER MORTAR MIXER • OPERATION AND PARTS MANUAL — REV. #0 (09/27/12) — PAGE 15
ELECTRIC MOTOR
Figure 4. Single-Phase Electric Motor
18-Inch Pigtail Cable
Electric Motor
For maintenance care and operation of the electric motor,
refer to your electric motor instruction booklet furnished
with the motor.
Protect the electric motor from dust as much as possible
and keep ventilating openings clean.
The electric motor used in this mixer is a single-phase 1.0
HP motor. The input voltage requirement for this motor is
either 115 or 230 VAC only.
Electric Motor Connection
A 12 inch electrical cable (Figure 4) with a pigtail at one end
is provided with the electrical motor for hookup to a power
source. Table 4. shows the required NEMA connector for
the desired motor horsepower rating. In addition, Table 3
also shows the matching NEMA approved connector for
the required extension cord.
ALWAYS, make certain that the power source required
for the electric motor is correct and always use the correct
NEMA configuration plug. Failure to supply the correct
voltage to the motor can severely damage the motor.
The motor supplied is wired for 115 VAC grounded
operation. Make certain that the correct size grounded
(3-wires) extension cord is used. See Table .
Motors can burn out when the line voltage falls 10% below
the voltage rating of the motor. Failure to use proper voltage
will cause the motor to overheat and actuate the overload
switch.
If overload protection should activate because of improper
voltage or any other malfunction, turn the main switch on
the motor to the "OFF" position and correct the problem,
press the reset switch button, and turn the main switch to
the "ON" position.
Electric Motor Voltage Switch
1. ALWAYS make certain the electric motor switch
is "OFF" (Figure 4)and the power cord has been
disconnected from the power source.
2. Remove the voltage lock-out bolt. Change the position
of the voltage change toggle switch from 115 VAC
to 230 VAC. The mixer is factory wired for 115 VAC
operation.
3. Re-install voltage lock-out bolt.
4. Important!, when changing the electric motor input
voltage from 115 to 230 VAC the plug on the motor
power cord must also be changed. See Table 5.
Table 4. Electric Motor Wiring Information
HP/Voltage
115-230 VAC Single Phase
NEMA Plug
Mating NEMA
Receptacle
1.0/115VAC
L5-20P
P/N EM 940537
SAE 10W-30
1.0/230VAC
L5-20P
P/N EM 940537
SAE 10W-30/20
Table 5. Recommended Extension Cord Sizes
Model Motor Voltage
50 ft.
(15 m)
75 ft.
(23 m)
100 ft.
(30 m)
200 ft.
(61m)
WM45E 1 HP
115 No. 12 No. 10 No. 8 No. 6
230 No. 14 No. 12 No. 12 No. 8
NOTICE
ALWAYS make certain that the power source required
for the electric motor is correct and always use the
correct NEMA configuration plug. Failure to supply
the correct voltage to the motor can severely damage
the motor.