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4.10 Magnetic
coupling
This pump uses a magnetic coupling to transfer the motor power to the pump body
without touching it.
In the following cases the magnetic power of the magnetic coupling which transfers
the motor power may weaken.
- When starting the pump after it has been stopped for a long time.
- When starting the pump after disassembling and reassembling it.
- When starting the pump when the ambient temperature is low and the pump oil
viscosity is high.
- When starting the pump when there is a problem (pump lock, etc.) inside the pump.
In these cases, the motor noise will increase but the pump will not operate (the motor
is running but the pump is stopped). Perform jogging (switching the pump on and off
quickly) several times. Operation may be possible if the leak valve (B) is opened.
After the pump begins to operate normally, close the leak valve (B), and return to
normal operation. (Refer to Fig. 4.)
Caution
