KNF N 811, Translation Of Original Operating And Installation Instructions

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Servicing Diaphragm vacuum pump N 89/N 811/N 814/N 815
24 Translation of original Operating and Installation Instructions, english, KNF 121242-121509 04/20
8.3. Replacing diaphragm and valve
plates/sealings

Pump disconnected from mains and de-energized.

Pump is clean and free of hazardous materials.

Hoses removed from pump’s pneumatic inlet and outlet.
CAUTION
Danger of burns from hot pump parts
The pump head or motor may be hot even after the
pump has been shut off.

Allow the pump to cool after operation.

Always replace diaphragm and valve plates/sealings together
to maintain the pump performance and safety.
WARNING
Health hazard due to dangerous substances
in the pump
Depending on the substances transferred, caustic
burns or poisoning are possible.

Wear protective clothing if necessary, e.g. pro-
tective gloves.

Clean pump with suitable measures.
Spare part* Quantity
Diaphragm 1
Valve plates/sealings 2
Tab. 13 *according to spare part list, Chapter 10
Quantity Tool/Material
1
Phillips screwdriver No. 1 (N 89, N 811, N 814)
1 Phillips screwdriver No. 2 ( N 815)
1 Felt-tip pen
Tab. 14 *according to accessories, Chapter 10
Conditions
Spare parts
Tool and Material