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5 Operation and maintenance
930 Compact IC Flex Oven/SeS/Deg (2.930.2460)
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■ Has the pressure dissipated?
■ Is the instrument switched off?
1
Release the coupling from the pressure screw and seal it with a stop-
per.
2
Unscrew and remove the pressure screw on the pump head's output
(16-8).
3
Unscrew and remove the four fastening screws (16-3) using the hex
key.
4
Remove the pump head (16-4).
Replacing the piston seal
Carry out the following work on both pistons in turn.
Servicing a piston consists of the following tasks:
1. Replace the piston seal.
2. Optional: Clean or replace the zirconium oxide piston.
3. Reinstall the piston.
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