Servicing - VWR VP 8 Vac Manuel D'instructions

8.

Servicing

8.1 Servicing Schedule
Component
Pump/System
Diaphragm and valve plates/sealings
Tab. 5
8.2 Cleaning
When cleaning, make sure that no liquids enter the inside of the housing.
8.2.1 Flushing Pump
 Before switching off the pump, flush it with air (if neccesary for safety reasons: with an inert gas) for
about five minutes under atmospheric conditions (ambient pressure).
8.2.2 Cleaning Pump
 Only clean pump with a damp cloth and non-flammable cleaning agents.
8.2.3 Emptying and Cleaning the Separator
1. Unscrew the connecting nozzles.
2. Remove separator container from the holder and dispose of contents according to applicable regulations
in your area. Then rinse out the separator container.
3. Replace separator into the holder.
4. Screw the connecting nozzles back on.
8.2.4 Emptying and Cleaning the Condenser
1. Carefully remove the spring clamp while supporting the flask.
2. Empty and clean the flask – observing safety precautions.
3. Re-connect the flask to the condenser and replace the spring clamp.
8.3 Changing Diaphragm and Valve Plates/Sealings
Conditions
 Pump is switched off and mains plug is removed from the socket
 Pump is clean and free of hazardous materials
 Tubes removed from pump's pneumatic inlet and outlet
 Pump is removed from baseplate
Tools and material
Qty Material
1 Phillips-head screwdriver No. 2
1 Service Set (see Chapter 10)
1 Felt-tip pen
Tab. 6
Information on procedure
 Always replace diaphragm and valve plates/sealings together to maintain the pump performance.
With multi-head pumps, parts of the individual pump heads can be confused.
 Replace the diaphragm and valve plates/sealings of the individual pump heads consecutively.
Servicing interval
Regular inspection for external damage or leaks
Replace at the latest, when pump output decreases
English
13