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Presence of abrasive particles into
pumped liquid.
Mechanical seal dry running.
Internal misalignment after repair
20.
PERIODIC AND EXTRAORDINARY MAINTENANCE
Proper maintenance and use are essential factors to ensure the functionality and pump lifetime.
Cleaning components
20.1.
To clean all surfaces of the pump and centering surfaces, use possibly methyl alcohol. Use paper towels
instead. Do not use solvents and other corrosive liquids to avoid damaging it;
Periodic preventive maintenance
20.2.
Instructions relating to maintenance activities whose implementation do not require specific skills that
can then be made by users of the pump, are given. They are operations and inspections planned on
issues considered important for technical, operational and security staff, determined on the basis of the
knowledge gained from M PUMPS PROCESS. If the hydraulic pump is washed with jet in pressure,
prevent the entry of water into the terminal of the motor.
DANGER
Do not throw water on the pump hot components: components can explode in case
of sudden cooling generating projection of metallic material and leakage of hot
fluid in pressure and hazardous to health. Do not give strokes and pressures on the
bearings, you would cause the formation of micro-cracks which can cause serious
damages.
Description control /
N.
intervention: implementation
rules
1
Ball bearing frame
2
Internal bearings
3
Wear rings
4
Motor bearings
Carefully check repair method.
Consult M PUMPS PROCESS.
Warnings and protective measures
be taken to perform the
maintenance properly and safely
Top up the oil until the middle of
the eye plug
Check the status of bushings,
sleeve bearings and thrust
bearings,
replace them if worn
Check the status of the wear ring,
consult the table of tolerances
Unless other specifications, motor
bearings are greased for life, so
there is not a maintenance
schedule, anyway it is
recommended to check the
condition of the bearings and
replace them when worn
Doc. ISM0076_MANUALE_CN SEAL-MV_ENG_REV04.DOCX
Time
Weekly. Replace oil
every 5,000 hours.
After 2500 hours,
check any premature
wear, then every
5,000hours or every
year.
After 2500 hours,
check for premature
wear, then every
5000 hours or every
year.
Pag. 31/49
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