IWAKI PUMPS MXM Series, Инструкция по эксплуатации

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Maintenance
Troubles
Symptom
Cause
Point to be checked
&
Countermeasures
When a discharge
valve is closed.
When a discharge
valve is opened.
The motor is
overheated. • Voltage has dropped
greatly.
• Overload
• Surrounding tempera-
ture is too high.
• Check voltage or fre-
quency.
• Check specific gravity
and viscosity of liquid.
• Keep a good ventila-
tion.
A flow rate
has dropped
suddenly. Vacuum is high. • A suction line clogs
with foreign matters.
• Remove foreign mat-
ters.
The pump
vibrates.
• The base is not
anchored firmly.
• Anchor bolts are loose.
• Cavitation occurs.
• Pump bearing is worn
or failed.
• Magnet capsule or
impeller is broken.
• Dynamic balance of
drive magnet is upset.
• Motor bearing is worn.
• Fix the base.
• Retighten the bolts.
• Remove the cause of
cavitation.
• Replace as necessary.
• Replace as necessary.
• Investigate problems
and replace as neces-
sary.
• Replace bearing or a
motor unit.