7 Servicing/Maintenance
47 of 96
Sewatec
Closing the inspection hole
▪ Fit new O-ring 412.05.
▪ Fit inspection cover 164.02.
▪ Fit discs 550.04 and nuts 920.17 on screws 900.02. Tighten the nuts.
▪ Observe the instructions on commissioning/start-up. (ðSection6.1.1,Page39)
7.2.3 Lubrication and lubricant change
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 Changing the grease
Lubricating nipples at the bearing bracket allow re-lubrication of the rolling element
bearings without opening the pump.
DANGER
Dry running
Explosion hazard!
▷ Re-lubricate explosion-proof pump sets outside potentially explosive
atmospheres.
WARNING
Hands or foreign objects in the pump casing
Risk of injuries, damage to the pump!
▷ Check that the inside of the pump is free from any foreign objects. Remove any
foreign objects.
▷ Never insert your hands or any other objects into the pump, if the pump set has
not been disconnected from the power supply and secured against
unintentional start-up.
CAUTION
Incomplete re-lubrication
Bearing damage!
▷ Always re-lubricate the bearings with the pump set in operation.
NOTE
Prior to the first re-lubrication, fill the cavities of the bearing bracket in the area to
be re-lubricated with grease.
ü The pump set remains installed in the piping.
1. Press the grease through lubricating nipples 636.02 / 636.03.