Metrohm 940 Professional IC Vario ONE/Proep 2 - Manual (Page 73)

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5 Operation and maintenance
940 Professional IC Vario ONE/Prep 2 (2.940.1120)
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Figure 17 High-pressure pump – cross-section
1 Outlet valve holder 2 Outlet valve (6.2824.160)
3 Backup ring 4 Piston seal (6.2741.020)
5 Pump head 6 Inlet valve (6.2824.170)
7 Inlet valve holder 8 Zirconium piston (6.2824.070)
9 Piston cartridge
Accessories For this step you need the following accessories:
You can find these parts in the accessory kit: Vario/Flex Basic
(6.5000.000).
￭ Adjustable wrench (6.2621.000)
￭ Tool for piston seals (6.2617.010) consisting of a tip (18-1) for remov-
ing the old piston seal and a sleeve (18-2) for inserting the new piston
seal.