7 Servicing/Maintenance
40 of 72
Sewatec (60 Hz)
WARNING
Fluids handled, consumables and operating supplies which are hot or pose a
health hazard
Hazard to persons and the environment!
▷
Collect and properly dispose of the flushing fluid and of any residues of the
fluid handled.
▷
Wear safety clothing and a protective mask if required.
▷
Observe all legal regulations on the disposal of fluids posing a health hazard.
WARNING
Hands and/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.
If a problem has occurred which requires visual inspection, observe the following
instructions:
900.02
920.17
550.04
164.02
412.05
Fig. 12:
Inspection hole in the casing
Opening the inspection hole
▪
Close the shut-off element on the suction side.
▪
Switch off the drive and make sure it cannot be re-started unintentionally.
▪
Close the shut-off element on the discharge side.
▪
Open the drain plug (auxiliary connection 6B).
(
ð
Section 5.5, Page 25)
▪
Collect and dispose of any liquid residues.
▪
Loosen nuts 920.17 at the inspection hole and remove inspection cover 164.02.
▪
Perform a visual inspection with a lamp or similar.
Closing the inspection hole
▪
Fit new O-ring 412.05.
▪
Fit inspection cover 164.02.
▪
Place discs 550.04 and nuts 920.17 on screws 900.02 and tighten.
▪
Observe the instructions on commissioning/start-up.
(
ð
Section 6.1.1, Page 33)