Metrohm 930 Compact IC Flex Oven/SeS/Deg User Manual download pdf (Page 78)

5.8 Servicing the high-pressure pump

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930 Compact IC Flex Oven/SeS/Deg (2.930.2460)

Removing the old piston seal

CAUTION

Screwing the (6.2617.010) special tool for the piston seal into the

piston seal destroys this completely!

CAUTION

Avoid touching the sealing surface in the pump head with the

tool!

Only screw the tip (18-1) of the tool for piston seal far enough into

the piston seal that the seal can be pulled out.

Inserting the new piston seal into the tool

Insert the new piston seal into the recess of the sleeve (20-1) of the

tool for piston seal. The sealing spring must be visible from the out-

side.

Figure 20 Inserting the piston seal into the tool

Tool for piston seal (6.2617.010)

Sleeve for inserting the new piston seal.

Piston seal (6.2741.020)

Inserting the new piston seal into the pump head

Guide the sleeve (18-2) of the tool for the piston seal with inserted

piston seal into the pump head. Press the seal into the pump head

recess using the wide end of the tip (18-1) of the tool.

Reinserting the piston cartridge

Screw the piston cartridge back into the pump head and tighten, first

by hand, then also by approx. 15° using an adjustable wrench.

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Metrohm 930 Compact IC Flex Oven/SeS/Deg User Manual Page 78