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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.
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
DO NOT spray water at any time on the electric motor .
DO NOT operate electric motor in a explosive environment.
The electric motor used in this mixer is a single-phase 3
HP motor. The input voltage requirement for this motor is
115/230 VAC, and has been pre-set to 230VAC.
Electric Motor Connection
A 12-inch electrical cable (Figure 7) is provided with the
electrical motor for hookup to a power source. Table 5 shows
the required NEMA connector for the desired motor
horsepower rating. In addition, Table 5 also shows the
matching NEMA approved connector for the required
extension cord.
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
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.
It is strongly recommended that all
NOTE
electrical wiring be done by a
licensed electrician .
Special attention should be given to the electric switch as
well as the over-and-under voltage protection devices as
per regulations set forth in the local electrical safety code
handbook
PAGE 18 — WM-90 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (08/10/04)
WM-90 PLASTER/MORTAR MIXER — ELECTRIC MOTOR
Electric Motor
Safety
Electric Motor
Connections
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 230 VAC grounded operation.
Make certain that the correct size grounded (3-wires)
extension cord is used. See Table 6.
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.
A T
B
E L
5
E .
E L
C
T
R
C I
M
O
1
5 1
M
t o
r o
H
r o
e s
o p
w
r e
N
E
M
A
l P
g u
C
R
i t a
g n
3
H
P
5 L
2 -
P 0
P
N /
E
1 (
5 1
A V
) C
3
H
P
6 L
2 -
P 0
P
N /
2 (
0 3
A V
) C
Figure 7. Single Phase Electric Motor With
18 inch Pigtail Cable
T
O
R
W
R I
N I
G
N I
F
O
R
M
A
T
O I
2 -
0 3
V
A
C
-
i S
g n
e l
P
a h
e s
M
i t a
g n
N
E
M
A
n o
e n
t c
r o
e R
e c
t p
c a
e l
C
n o
e n
M
4 9
5 0
7 3
5 L
2 -
R 0
P
N /
E
M
4 9
5 0
4 9
5 0
9 3
6 L
2 -
R 0
P
N /
4 9
5 0
N
t c
r o
8 3
0 4
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