Metrohm 942 Extension Module Vario Manual page 45

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Accessories
942 Extension Module Vario ONE/Deg (2.942.1060)
3 Reinserting the inlet valve into the pump head
Insert the inlet valve into the inlet valve holder (the seal must be
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visible) (1).
Screw the inlet valve holder up into the pump head (2) and
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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
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aspiration tubing (14-7).
Removing the pump head
For this step, you need the following accessories:
4 mm hex key (6.2621.030)
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Removing the pump head
Prerequisites:
Is the high-pressure pump switched off?
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Has the pressure been released?
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Is the instrument switched off?
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5 Operation and maintenance
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