KSB SuPreme Series, Installation & Operating Manual

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7 Servicing/Maintenance
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KSB SuPremE
Maintenance interval Maintenance work For details see ...
Depending on local degree of pollution Cleaning
Depending on climatic conditions Drain off the condensation
water. ( ð Section 7.2.2.1, Page 33)
Careful and regular maintenance, inspections and overhauls make it possible to
identify and eliminate faults in good time before they can cause any damage.
Operating conditions can vary widely. For this reason, only general maintenance
intervals for trouble-free operation can be specified here. Maintenance intervals
must be scheduled to suit the local conditions (dirt, frequency of starts, load, etc).
If problems or unusual conditions arise which might cause electrical or mechanical
overstressing of the motor (e.g. overload, short circuit), carry out the necessary
inspection work immediately. (
ð
Section 8, Page 40)
7.2.1 Supervision of operation
DANGER
Rotating or live parts
Death, serious injury or damage to property!
▷ If covers have to be removed, de-energise the drive beforehand.
▷
Avoid touching live or rotating parts.
DANGER
Hot surface
Risk of burns!
▷ Never touch a motor when it is in operation.
▷ Let the motor cool down.
▷ Only remove covers if indicated.
WARNING
Condensing air humidity inside the motor if the motor and/or ambient
temperatures frequently change
Risk of corrosion by condensation!
▷ Always observe the information provided on ambient conditions.
While the system is in operation, observe and check the following:
▪
Deviations from normal operation such as increased power consumption,
temperatures or vibrations, unusual noises or odours, tripping of monitoring
devices, etc.
▪ If rough running or abnormal noises are detected, switch off the motor and find
the cause of the problem as the motor coasts down.
– If mechanical operation improves immediately after the motor is switched
off, the causes are magnetic or electrical phenomena.
– If mechanical operation does not improve after the motor is switched off, it
can be assumed that the cause is mechanical, e.g. unbalance of the electric
drive or the driven machine, poor alignment between the electric drive and
the driven machine or operation of the drive at system resonance (system =
motor + base frame + foundation, etc.)
– If mechanical operation of the motor is OK, switch on the cooling
equipment, if any, and continue to observe the motor for a while as it runs
under no-load conditions.