IWAKI PUMPS MXM Series, Инструкция по эксплуатации

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Maintenance
2. Maintenance & Inspection
WARNING
● Access limitation
The magnet drive pump has a pair of strong magnets. The strong magnet field could
adversely affect the persons who are assisted by electronic devices such as the pace-
maker.
● Do not catch the finger
The magnetic force of the pump is powerful. Take care not to catch the finger in the
bracket.
● Wear protective clothing
Coming in contact with a harmful chemical liquid may cause eye or skin trouble. Wear
protective clothing such as a protective mask, goggles, gloves during work.
● Turn off power during maintenance work
Risk of electrical shock. Make sure a power source is turned off, and the pump and
devices are stopped prior to work.
■ Daily inspection
1. Always check for leakage before pump operation. Do not run the pump when liquid leaks. Check if the
drain cap is tight. Retighten as necessary.
2. Check whether the pump runs without abnormal noise or vibration.
3. Check a liquid level in a supply tank and a suction pressure.
4. Check that discharge capacity and a motor current value are as per specifications on the nameplate dur-
ing operation.
NOTE A discharge pressure is in proportion to the specific gravity of liquid. The cock of
the pressure gauge or vacuum gauge should be opened only when measurement is
carried out. Close it right after measurement. If the cock remains open during pump
operation, the meter mechanism may be adversely affected by the abnormal pres-
sure rise caused by water hammer action.
5. If a spare pump is stored, run it from time to time to keep it ready for operation at any time when needed.
6. Check discharge pressure, discharge capacity, and motor power supply voltage to see if they do not fluc-
tuate during operation. See page 24 "1. Troubleshooting" as necessary.