IWAKI PUMPS AMP 40, Instruction Manual

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Periodic inspection (Every six months)
2. Maintenance & Inspection
Maintenance
WARNING
● Do not have the medical electronics close to magnet.
Any person who is equipped with the medical electronic such as a pacemaker should
not be close to the magnet of pump.
● Pay attention to magnet force
The magnet force is powerful. Take care not to catch the finger in metal parts.
Part names Inspection items Measures
Drive magnet unit
● If there is a friction trace.
● If the drive magnet housing is cor-
rectly mounted or if the hex. socket set
screws are not loosened.
● Decentering of the magnet and motor
shaft (Max.1/10mm).
○ If abnormality is found, contact us.
○ Remount the drive magnet to motor
shaft or retighten the set screws.
○ Retighten the hex. socket set screws
or replace the drive magnet (Contact
us for replacement.).
Rear casing
● If there is a friction trace in inner surface.
● If there is a crack on wet-end material.
● If the rear thrust ring is worn.
● If the inside is dirty.
○ If abnormality is found, consult us.
○ Replace as necessary.
○ If it is worn, contact us.
○ Clean the inside.
Magnet capsule
● If there is a friction trace on surface.
● If there is a crack on surface.
● Measure the bearing inner bore.
● If the impeller is secured to the magnet capsule.
○ If abnormality is found, contact us.
○ If abnormality is found, contact us.
○ Replace it if it is worn beyond the wear limit.
○ If it is loose, replace or contact us.
Impeller
● Measure the mouth ring thickness.
● If there is a crack.
● If there is a cavitation trace.
(Abnormality related to the mouth ring
such as wear and seizure.)
● If the impeller is not clogged.
● If the impeller is deformed.
○ Replace as necessary.
○ Replace as necessary.
○ Remove the cause of cavitation.
○ Remove clogs.
○ Replace as necessary.
Front casing
● Wet-ends are dirty.
● If there is a crack.
● If there is an abnormal wear, crack and
friction trace on liner ring.
● If drain is clogged.
● If gasket is swelled or O ring is cracked.
● If there is a friction trace.
○ Clean them.
○ Replace as necessary.
○ Contact us if abnormality is found.
○ Clean the drain.
○ Replace as necessary.
○ Contact us.
Spindle
● If there is a crack.
● If the bearing is worn beyond the limit.
○ Replace as necessary.
○ Replace as necessary.
Rear casing support
● If the rear casing support mounting
bolts are not loose.
○ Retighten the bolt by the specified torque.
○ When a frequent ON-OFF operation is
made or liquid temperature fluctuates,
retighten the bolt periodically.