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Idiomas disponibles
Idiomas disponibles
Chemically-resistant Laboratory pump N820.18 / N840.18
Requirements
Material and
tools
Information on
the procedure
Translation of Original Operating Instruction, KNF 317428-317425 02/23
10.3 Replace diaphragm, valve plates/seals and
O-rings
Necessary requirements
Pump
- Pump switched off and power cable pulled
out of socket
- Pump cleaned and free of hazardous mate-
rials
- Hoses removed from pneumatic inlet and
outlet
Tab.22:
Quan-
Material
tity
®
1
TORX
screwdriver T20
®
1
TORX
T25 screwdriver (only for N840.3FT.29.18G)
1
Spare parts set (see Chapter Spare parts)
1
Pencil
Tab.23:
à
Always replace diaphragms, valve plates/seals, and O-
rings together to maintain the performance of the pump.
à
Replace the diaphragms and valve plates/seals of the in-
dividual pump heads one after the other.
Servicing
DE
EN
FR
ES
IT
45
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