Metrohm 940 Professional IC Vario ONE/ChS User Manual

Page 80

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5.8 Servicing the high-pressure pump

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940 Professional IC Vario ONE/ChS (2.940.1200)

You can find these parts in the accessory kit: Vario/Flex Basic
(6.5000.000).

4 mm hex key (6.2621.030)

Mounting the pump head

NOTE

To prevent the pump head from being mounted the wrong way, it has
fastening bolts with different bore hole depths, i.e. one fastening bolt is
longer than all others. The bore hole with the greatest depth must
therefore be assigned to the longest bolt.

1

Push the pump head onto the four fastening bolts (1).

Tighten the four fastening screws using the hex key (6.2621.030)
alternating crosswise.

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