Replace Diaphragm, Valve Plates/Seals And O-Rings; Change O-Rings On The Complete Vacuum System (Optional) - KNF LABOPORT SH820G Originalbetriebsanleitung

Vacuum system SH820G / SR820G / SH840G / SR840G
Translation of Originial Operating Instruction, KNF 325562-325564 02/23
WARNING
4. Before integrating the vacuum system into your applica-
tion, perform a function check:
à
Connect the vacuum system electrically.
à
Check the vacuum system for functionality (incl. ulti-
mate vacuum).
à
Disconnect the vacuum system electrically and pneu-
matically again.
5. Integrate the vacuum system into your application:
à
Connect the lines on the pneumatic inlet and outlet to
the vacuum system.
à
Connect the vacuum system electrically.
à
Check the vacuum system for functionality.
10.4 Change O-rings on the complete vacuum
system (optional)
As already described in Chapter 10.3 Replace di-
aphragm, valve plates/seals and O-rings [} 54], only the
elastomer parts of the pump are changed as standard
during servicing. The additional O-ring replacement for
servicing of a complete vacuum system is described be-
low. For this purpose, you will need the appropriate
spare parts set for the complete vacuum system (see
Chapter 11.1 Spare parts [} 68]).
1. Disassemble the pump heads as described in Chapter

10.3 Replace diaphragm, valve plates/seals and O-rings

[} 54] (sections: Initial steps and Removing pump head).
Risk of injury and poisoning from leaks
à
Before recommissioning the vac-
uum system, check the pump
heads and pneumatic connections
for leaks. Leaks can cause poi-
soning, chemical burns or similar
injuries.
Servicing
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