Replace O-rings, piston seal and pump membrane
housing
ActionStep
Unscrew the purge valve of the pump head. Replace the O-ring on the purge valve with
a new O-ring, and screw the purge valve back into the pump head.
1
Note:
Always use Lubricant 56686700 when exchanging the O-ring 3 x 1 mm.
Wet a new seal with 20% ethanol. Place the new seal in the hole in the front section of
the pump head and press it into position.
2
Pump P9HPump P9
340 ÄKTA pure User Manual 29119969 AB
7 Maintenance
7.8 Replacement procedures
7.8.10 Replace pump piston seals of Pump P9 or P9H
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