KSB IE4 Installation & Operating Manual page 33

7 Servicing/Maintenance
7.2.2.1 Draining off the condensation water
DANGER
Electrical connection work by unqualified personnel
Danger of death from electric shock!
▷ Always have the electrical connections installed by a trained and qualified
electrician.
▷ Observe regulations IEC 60364.
WARNING
Hot surface
Risk of injury!
▷ Allow the pump set to cool down to ambient temperature.
ü The pump set has been switched off and secured against unintentional re-start.
ü The motor has cooled down to ambient temperature.
ü The motor has a drain hole.
ü The water drain plug is at the lowest point of the housing.
1. Place a container underneath it to collect the condensation water.
2. Remove the water drain plug.
3. Let the condensation water drain off.
4. Re-insert the water drain plug.
7.2.2.2 Correct damage to paintwork
CAUTION
Damage to paintwork
Risk of corrosion!
▷ Immediately correct damage to paintwork to ensure sufficient corrosion
protection.
We recommend contacting your nearest KSB service centre for important information
about proper layering as well as paint repair instructions.
7.2.2.3 Lubrication and lubricant change
7.2.2.3.1 Maintenance of rolling element bearings
Maintenance of rolling element bearings after an extended storage period
Extended storage periods decrease the service life of the lubricating grease. This in
turn reduces the service life of the bearings.
▪ The rolling element bearings should be completely replaced after a storage
period of more than 4 years.
▪ After a storage period of more than 12 months, it is advisable to change the
bearing grease in rolling element bearings that are not greased for life.
Maintenance of rolling element bearings under normal operating conditions
Recommended bearing replacement interval under normal operating conditions:
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