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6 Operation and maintenance
930 Compact IC Flex Oven/SeS/PP (2.930.2500)
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3
Reinserting the inlet valve into the pump head
■ Insert the inlet valve into the inlet valve holder (the seal must be
visible) (1).
■ Screw the inlet valve holder up into the pump head (2) and
tighten it firmly by hand and then retighten it one additional ¾
turn using the adjustable wrench (3).
■ Refasten the connection capillary to the connection of the eluent
aspiration tubing (17-7).
Removing the pump head
Accessories
For this step, you need the following accessories:
You can find these parts in the accessory kit: Vario/Flex Basic
(6.5000.000).
■ 4 mm hex key (6.2621.030)
Removing the pump head
Prerequisites:
■ Is the high-pressure pump switched off?
■ Has the pressure been released?
■ Is the instrument switched off?