Alfa Laval ALP 100, Руководство по эксплуатации

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10.2 Required maintenance
The service life of the pump depends to a great extent on the operating
conditions. If the operating limits are observed, refer to
Technical data on page
17;the pump has a service life of many years.
Signs of progressive wear of individual pump elements:
Table 15: Check table for required maintenance
Finding Cause Remedy
Increased running noises. Incipient damage to bearing. Replace the bearing.
Reduction in the flow rate or pres-
sure under constant operating con-
ditions.
Advanced wear of screws and hous-
ing.
Replace the pump.
1. Check the pump visually and acoustically every four weeks.
2. Check for signs of wear as listed in the table above and eliminate the
cause.
10.3 Magnetic coupling
The shaft end of the pump is enclosed by a containment can, that is
connected air-tight with the motor-side flange of the pump. Special rotors
equipped with powerful magnets are used to transfer the torque from the
motor to the pump. The inner rotor is fixed at the shaft end and driven from the
outer rotor, which in turn is fixed to the shaft of the motor. The torque is thus
transferred contact-free by means of magnetic field between the outer and
inner rotor.
The pressure discharge of the containment can approximately corresponds to
the pressure on the suction side of the pump.
10.4 Ball bearing
The ball bearings used are lubricated by the pumped liquid. Maintenance is
therefore not required.
We recommend renewing the ball bearings every two years.
200007725-1-EN-GB 48
10 Maintenance EN