7 Servicing/Maintenance
46 of 76
Etaprime L
7.2.2.4 Checking the bearing seals
DANGER
Excessive temperatures caused by mechanical contact
Risk of explosion!
Damage to the pump set!
▷
Check correct seating of axial seal rings mounted on the shaft.
Only gentle contact of the sealing lip shall be established.
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 16:
Oil change intervals
Oil change
Interval
Initial oil change
after 300 operating hours
Further oil changes
every 3000 operating hours
6)
7.2.3.1.2 Oil quality
Table 17:
Oil quality
7)
Description
Symbol to
DIN 51502
Properties
Lubricating oil
C 46
CL 46
CLP 46
□
Kinematic viscosity at 40 °C
46 ± 4 mm²/s
Flash point (to Cleveland)
+175 °C
Solidification point (pour point)
-15 °C
Application temperature
8)
Higher than
permissible
bearing
temperature
6)
At least once a year
7)
To DIN 51517
8)
For ambient temperatures below -10 °C use a different suitable type of lubricating oil. Contact the manufacturer.
9)
Shaft unit see data sheet.
Summary of Contents for Etaprime L
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