Autocall Mdk 4 Install A Check

Trouble Cause Countermeasure Motor does not Disconnected wires.

This instruction manual, which is divided into five sections, namely Safety, Outline of Product, Installation, Operation and Maintenance, deals with the correct handling and operation procedures for the pump.

To make maximum use of the pump and to ensure safe and long time operation of the pump, please read this manual thoroughly and carefully prior to operating the pump.

Observe the instructions accompanied with WARNING or CAUTION in this manual.

These instructions are very important for protecting users from hazardous situations.

Be sure to turn off power to stop the pump and related devices before service is performed.

Turning off power Wear protective clothing Always wear protective clothing such as an eye protection, chemical re- sistant gloves, a mask and a face shield during disassembly, assembly or maintenance work.

Any person not familiar with the product should not take part in the operation or management of the pump.

Grounding Install a GFCI (earth leakage breaker) An electrical failure of the pump may adversely affect other devices on the same line.

Unpacking and inspection.6 2.

Operating principle.6 3.

Model identification.6 4.

Specification.7 5.

Construction and material.7 6.

Outline dimension.

Performance curve.8 8.

Construction and parts names.

Impeller is rotated in pump chamber by the magnetic coupling force to suck liquid from suction port and to discharge to outlet.

Disassembling of pump must be limited to the extent shown on Maintenance section.

Remarks Parts Qty Material MDK-20 MDK-25 MDK-32 MDK-40 Front casing SCS14 Magnet capsule SUS316SUS329J1 Hex.

Dry running (running with no liquid) will cause the seizure of rubbing parts resulting in pump failure.

Running parts are self-lubricated and cooled by pumped liquid.

Dry running (pump operation without liquid) may cause pump seizure or shortened pump parts.

Max.

Liner I f piping vibrates sympathetically with the pump in operation, provide an expansion joint between the pump and the piping to reduce vibration.

Concrete Example of recommended plumbing (1) Discharge pipe.

The table is based on use of metal pipe flanges with rubber gaskets.

Install the reducer so that the upper part becomes horizontal as shown above.

Calculate pipe resistance to get suitable pipe size.

Autocall Mdk 4 Install A Check

It is recommended to install a check valve in the following cases.

Prohibited If pump is operated in cavitation condition, stop it within a minute.

When pump starts discharging, choke the discharge valve (gate valve) several times to increase the pressure and to check if pump operates normally.

If the pump does not suck up liquid within five or six minutes, prime and start pump several times.

Autocall Mdk 4 Manual