7 Servicing/Maintenance
28 of 36
KSB IE3-Motor
7.2.2.1 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.
7.2.2.2 Lubrication and lubricant change
7.2.2.2.1 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:
Table17: Bearing replacement
Ambient temperature Bearing replacement interval
40°C 20,000 h
NOTE
The bearing service life is reduced e.g. for vertical installations, high vibration and
shock loads, frequent reversing duty, higher ambient temperature and higher
rotating speeds.
7.2.2.2.1.1 Grease lubrication
The bearings are supplied packed with high-quality lithium-soap grease.
7.2.2.2.1.2 Intervals
The rolling element bearings of the motor are grease-packed and maintenance-free.
Motors with axially reinforced bearings are excluded. These drive-end rolling element
bearings must be re-lubricated as part of the maintenance routine.
NOTE
On some pump designs the rolling element bearings are lubricated for life. These
pumps are not provided with a lubricating nipple on the bearing bracket.
NOTE
If re-lubrication intervals are short, we recommend that the grease be completely
replaced once a year.
Otherwise, the grease fill must be replaced completely every two years. To do so,
remove the rolling element bearings, clean and pack with new grease.
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