Figure 14 High-Pressure Pump - Parts - Metrohm 930 Compact IC Flex ChS Manual

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1 Pressure screw, short (6.2744.070)
Fastened to the outlet valve holder.
3 Fastening screw
5 Inlet valve holder
7 Eluent aspiration tubing connector
Consists of a coupling with a pressure screw.
Maintenance interval
930 Compact IC Flex ChS (2.930.1200)
Figure 14 High-pressure pump – Parts
The following parts of the high-pressure pump must be serviced at least
once per year:
Inlet valve (6.2824.170)
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Outlet valve (6.2824.160)
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Piston seal (6.2741.020)
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Zirconium oxide piston (6.2824.070)
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Maintenance tasks can also be carried out if the following problems occur:
Unstable baseline (pulsations, flow fluctuations)
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CAUTION
Maintenance work on the high-pressure pump may not be carried out
unless the instrument is switched off.
2 Outlet valve holder
4 Pump head
6 Pressure screw, short (6.2744.070)
Fastened to the inlet valve holder.
8 Pressure screw, short (6.2744.070)
Fastened to the pump output.
5 Operation and maintenance
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