Replace Pump Pistons - GE AKTA avant Operating Instructions Manual

7.4

Replace pump pistons

Introduction
Follow the instructions to replace the pump pistons of the pumps P9, P9H and P9-S.
Note:
Maintenance interval
Replace the pump pistons if they are damaged.
Required material
The following materials are required:
•
•
•
ÄKTA avant Operating Instructions 29101556 AB
Always replace the O-rings, piston seals, and rinse membranes of both pump
heads of a pump at the same time.
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.
Adjustable wrench
Star screwdriver, T20
Piston kit
7 Maintenance
7.4 Replace pump pistons
171