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Periodical inspection (Once a six months)
Parts name
Inspection items
Countermeasures
Drive magnet
•
If there is no rubbed trace.
•
If abnormality is found, consult dealer.
•
If drive magnet housing is correctly
mounted or if hex. bolts are not loos-
ened.
•
Re-mount the drive magnet to motor shaft or re-
tighten the bolt.
•
Decentering of magnet and motor shaft.
(Max. 0.1 mm)
•
Re-tighten bolts or replace drive magnet. (Consult
dealer if replacement is needed.)
•
If abnormality is found, consult dealer.
•
If crack is found, replace.
•
Wear of thrust ring.
•
If worn abnormally, consult dealer.
•
Resolve the reason.
•
Clean
•
Replace if abnormality is found.
•
Replace if abnormality is found.
•
Replace if excessively worn.
•
If there is no trace of cavitation.
(Abnormal wear, seizure etc.)
•
Consult if abnormality is found.
•
Replace if abnormality is found.
Rear casing
•
Rubbed trace in inner surface.
•
If there is no cracks.
•
Dirt or clog inside impeller.
•
Change of dimension.
•
If there is no swelling or cracks in gas-
ket.
•
If there is no rubbed trace.
Spindle
•
If there is no crack.
•
Wear against bearing
•
Dirty inside.
•
Cleaning
Magnet cap-
sule
•
If there is no rubbed trace.
•
If abnormality is found, consult dealer.
•
If there is no cracks.
•
If abnormality is found, consult dealer.
•
Measure the bearing inner diameter.
•
Replace if worn excessively.
•
If impeller is securely fixed to magnet
capsule.
•
If loosened, replace or consult dealer.
Impeller
•
Measure the mouth ring thickness.
•
Replace if excessively worn.
•
If there is no cracks.
•
Replace if cracked.
Front casing
•
Dirty wet-end.
•
Clean
•
If there is no cracks.
•
Replace if abnormality is found.
•
If there is no abnormal wear, cracks,
rubbed traces in liner ring.
•
Consult dealer if abnormality is found.
•
Clogged drain.
•
Clean
