9
◼
Check before operation
1. Electric wiring
Before starting operation, check the rotational direction. Connect U (red), V (white), W (black), and
ground (green) wires to start the pump. The rotational direction can be checked as follows:
1-(1) In reverse direction, the discharge amount will be 30% of what it would be in the forward
direction.
1-(2) When turning the switch ON while the pump lifted in water, it should be a counterclockwise
rotation observed from the above.
Note: In case of the reverse rotation, switch two of the three cables (Red, White, and Black).
2. Precautions in electric wiring
⚫
Make sure to connect a green ground wire to a ground plate or bar before connecting the cab tire
cable to prevent electric shock.
⚫
Never test the pump in the air. Generated heat may deform the pump and cause failure.
⚫
Install a circuit breaker to prevent unexpected problems.
Note: To prevent electric shock or fire, the user is obligated to provide a circuit breaker
according to the industrial safety and health regulations and electric equipment technical
standards.
Red
– U
<Cab tire cable side>
White
– V
<Motor cable side>
Black
– W
Green
– Ground
Forward rotation
Reverse rotation
