28
Decommissioning
Detach motor in an axial direction from motor intermediate flange 194.
8
Decommissioning
8.1
Shutting down for longer periods
Before shutting down the pump, observe the following procedure and adequately protect
the pump system against corrosion:
Switch off pump.
Change operating fluid.
Start the pump and allow the pump to warm up.
Switch off the pump.
Fill up the pump with new operating fluid to the top edge of the sight glass.
Close vacuum flange and exhaust flange with locking caps.
Store the pump only indoors, preferably at temperatures between -10 °C and +40 °C.
– In rooms with moist or aggressive atmospheres, the pump must be airproof shrink-
wrapped in a plastic bag together with a bag of desiccant.
– After storage periods longer than two years, it is recommended to carry out main-
tenance and change the operating fluid before using the pump.
Do not store pump in the vicinity of machines, lanes, etc., because strong vibrations
can damage the rotor bearings.
8.2
Re-starting
8.3
Disposal
Products or parts thereof (mechanical and electrical components, operating fluids, etc.)
may cause environmental burden.
Safely dispose of the materials according to the locally applicable regulations.
Emission of operating fluid!
Danger of the operating fluid being emitted at the exhaust flange if overfilled.
Drain the operating fluid to the normal level before restarting the pump.
NOTICE
Re-starting
The serviceability of the operating fluid without operation is a maximum of 2 years. Be-
fore restarting after a shut-down of
2 years or longer
, carry out the following work.
Replace the operating fluid.
Replace the radial shaft sealing rings and further elastomer parts.
Replace bearings at pumps with anti-friction bearings.
Follow the maintenance instructions and inform Pfeiffer Vacuum.
