User manual

126 Bio-inert Quaternary Pump User Manual
9 Maintenance
Maintenance of the Pump Head
Maintenance of the Pump Head
When When maintaining seal wash option
Tools required p/n Description
8710-2392 Hexagonal key, 4.0 mm, 15 cm long, T-handle
Parts required p/n Description
01018-23702 Insert tool
0905-1731 Wash Seal PTFE for Bio-inert Pump 600 bar
01018-07102 Gasket (Seal wash)
G5611-21503 Piston Seal PTFE (Bio-inert)
5067-4695 Sapphire piston
Preparations • Switch off pump at the main power switch.
• Remove the front cover.
• Use a solvent shutoff valve or lift up solvent filters for avoiding leakages.
• Remove the pump head, see “Removing the Pump Head Assembly” on page 122.
• Remove the wash solvent tubings from the support ring inlet and outlet.
CAUTION
Seal life time
Wrongly inserting the backup ring will strongly reduce the life time of the seals and the
pump head parts.
➔ Note the correct installation of the backup ring inside the support ring.