Decommissioning
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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 in a cool, dry place; preferably at temperatures between -10 °C and
+40 °C.
– For a longer period of storage, seal the pump in a PE bag with drying agents en-
closed.
– For a period of storage longer than two years, it is recommended to change the op-
erating 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.
CAUTION
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 elastomer parts, with reference to DIN 7716 and the manufacturer's spe-
cifications.
Follow the maintenance instructions and inform Pfeiffer Vacuum.
