7.2.2.3 Cleaning filters
CAUTION
Insufficient inlet pressure due to clogged filter in the suction line
Damage to the pump!
▷ Monitor contamination of filter with suitable means (e.g. differential pressure
gauge).
▷ Clean filter at appropriate intervals.
7.2.3 Lubrication and lubricant change of rolling element bearings
DANGER
Excessive temperatures as a result of bearings running hot or defective bearing seals
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷ Regularly check the condition of the lubricant.
7.2.3.1 Oil lubrication
The rolling element bearings are usually lubricated with mineral oil.
7.2.3.1.1 Intervals
Table 18: Oil change intervals
Temperature at the
bearing
First oil change All subsequent oil
changes
11)
up to 70 ℃ After 300 operating hours Every 8500 operating hours
70 °C - 80 °C After 300 operating hours Every 4200 operating hours
80 °C - 90 °C After 300 operating hours Every 2000 operating hours
7.2.3.1.2 Oil quality
Table 19: Oil quality
Description Properties
Lubricating oil CL46 or
CLP46 to DIN 51517
Kinematic viscosity at 40 °C 46±4 mm²/s
Flash point (to Cleveland) +175 °C
Solidification point (pour point) -15 °C
Application temperature
12)
Higher than permissible
bearing temperature
7.2.3.1.3 Oil quantity
Table 20: Oil quantity
Bearing bracket Oil quantity [l]
CS40 0.2
CS50 0.4
CS60 0.4
CS80 0.7
11)
At least once a year
12)
For ambient temperatures below -10 °C use a suitable different type of lubricating oil. Contact KSB.
7 Servicing/Maintenance
46 of 74
MegaCPK
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