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Maintenance
■ Daily inspection
1. Always check for leakage before pump operation. Do not run the pump when liquid leaks.
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 during operation.
NOTE A discharge pressure is in proportion to the specific gravity of liquid. The cock of a pressure
gauge or a vacuum gauge should be opened only when measurement is carried out. Close it
right after measurement. If the cock remains open during pump operation, its meter mecha-
nism may be adversely affected by the abnormal pressure 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 fluctuate during
pump operation. See page 27 "1. Troubleshooting" as necessary.
● 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 pacemaker.
● 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.
● Wear protective clothing
Coming in contact with a harmful chemical liquid may cause eye or skin trou-
ble. Wear protective clothing such as a protective mask, goggles, gloves dur-
ing work.
● Do not catch the finger
Magnetic force of the pump is powerful. Take care not to catch the finger in
the bracket.
WARNING
Turning off power
Prohibited
Wear protective
gear
Caution
2. Maintenance & Inspection
CAUTION
