7.3 Replace pump piston seal, O-ring, and rinse mem-
brane of Pump P9-S
Introduction
Follow the instructions to replace the O-ring, piston seal, and rinse membrane of Pump
P9-S.
Always replace the O-rings, piston seals, and rinse membranes of both pump
heads of a pump at the same time.
Note:
NOTICE
•
Do not disassemble the pump head unless there is good reason
to believe that there is an internal leakage. A sign of leakage
is increasing pump rinsing solution volume. Always make sure
that sufficient spare components are available before attempt-
ing to replace a spare part.
•
Replacing spare parts. Read the instructions carefully. For
example, some individual parts of the pump head can be as-
sembled incorrectly. Check the orientation of each part before
continuing with the next instruction.
Maintenance interval
Replace the O-ring, piston seal, and rinse membrane of Pump P9-S if they are damaged.
After replacement, perform a run to break in the new piston seal.
NOTICE
Advanced maintenance. Read the instruction carefully before
disassembly of the pump head.
ÄKTA avant Operating Instructions 29101556 AB 163
7 Maintenance
7.3 Replace pump piston seal, O-ring, and rinse membrane of Pump P9-S
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