Replace Diaphragm, Valve Plates/Seals And O-Rings - KNF LAB LABOPORT SH820G Manual Del Usuario

Vacuum system SH820G / SR820G SH840G / SR840G
Requirements
Material and
tools
Information on
the procedure
Translation of Originial Operating Instruction, KNF 325562-325564 06/21
9.3 Replace diaphragm, valve plates/seals and
O-rings
Necessary requirements
Vacuum sys- - Vacuum system switched off and mains
tem plug pulled out of socket
- Vacuum system cleaned and free of haz-
ardous materials
- Hoses removed from pneumatic inlet and
outlet
Quan- Material
tity
1 TORX® T20 screwdriver with torque indicator
1 Open-end wrench, size 14
1 TORX ® screwdriver T25 with torque indicator (only
for SH840G and SR840G)
1 Spare parts set (see Chapter 10 Spare parts and ac-
cessories [} 57])
1 Pencil
Tab.16:
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.
à
As standard, only the elastomer parts of the pump are re-
placed during servicing. For servicing of the complete vac-
uum system, please refer to Chapter 9.4 Change O-rings
on the complete vacuum system (optional) [} 52].
Servicing
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