Doc. ISM0076_MANUALE_CN SEAL-MV_ENG_REV04.DOCX
Pag. 31/49
Presence of abrasive particles into
pumped liquid.
Mechanical seal dry running.
Internal misalignment after repair
Carefully check repair method.
Consult
M PUMPS PROCESS.
20.
PERIODIC AND EXTRAORDINARY MAINTENANCE
Proper maintenance and use are essential factors to ensure the functionality and pump lifetime.
20.1.
Cleaning components
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;
20.2.
Periodic preventive maintenance
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.
N.
Description control /
intervention: implementation
rules
Warnings and protective measures
be taken to perform the
maintenance properly and safely
Time
1
Ball bearing frame
Top up the oil until the middle of
the eye plug
Weekly. Replace oil
every 5,000 hours.
2
Internal bearings
Check the status of bushings,
sleeve bearings and thrust
bearings,
replace them if worn
After 2500 hours,
check any premature
wear, then every
5,000hours or every
year.
3
Wear rings
Check the status of the wear ring,
consult the table of tolerances
After 2500 hours,
check for premature
wear, then every
5000 hours or every
year.
4
Motor bearings
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
