7.8.10 Replace pump piston seals of Pump P9 or P9H
Maintenance interval
Replace the O-rings and piston seals and rinse the membranes of the pumps if they are damaged.
After replacement, perform a run to break in the new piston seals.
The instructions in this section apply to the following pumps.
Pump typeLabelConfiguration
P9P9 ASystem pump A, ÄKTA pure 25
P9P9 BSystem pump B, ÄKTA pure 25
P9HP9H ASystem pump A, ÄKTA pure 150
P9HP9H BSystem pump B, ÄKTA pure 150
P9HP9H SSample pump S9H, ÄKTA pure 150
NOTICE
Advanced maintenance. Read the instruction carefully before disassembly of the
pump head.
Required material
The following materials are required:
•
Adjustable wrench
•
For Pump P9: Star screwdriver, T20
•
For Pump P9H: Star screwdriver, T10 and T20
•
Ultrasonic bath
•
Ethanol, 20%
•
For Pump P9: Tubing giving a back pressure of 6 to 8 MPa (60 to 80 bar).
•
For Pump P9H:Tubing giving a back pressure of 2 to 3 MPa (20 to 30 bar)
•
For Pump P9: P9 Seal kit, 25 ml
•
For Pump P9H: P9H Seal kit, 150 ml
ÄKTA pure User Manual 29119969 AB 335
7 Maintenance
7.8 Replacement procedures
7.8.10 Replace pump piston seals of Pump P9 or P9H
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