Clean Pump Flow Restrictors - GE AKTA avant User Manual

7.6.10

Clean pump flow restrictors

Introduction
Clean the pump flow restrictors when required for example if particles like dust or salt
crystals is causing blockage. The cleaning procedure is the same for the system pumps
and the sample pump.
Required material
The following materials are required:
•
•
•
•
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Instruction
Follow the instructions to clean the System pump A flow restrictor. Use the same proce-
dure to clean the System pump B or the Sample pump flow restrictors.
Step
1
2
3
4
5
ÄKTA avant User Manual 29035184 AE
Stop plug, 1/16" male
Union, 1/16" female to 1/16" female
Union, Luer female to 1/16" male
Syringe, 25 ml
Waste beaker
Action
Place the buffer bottles on the bench to avoid siphoning effects when
opening the flow path.
Disconnect the piece of tubing marked 2A from the flow restrictor block and
connect a stop plug, 1/16" male, to the restrictor block.
Disconnect the pieces of tubing marked 1A1 and 1A2 from the pump outlet
check valves. Place the tubing marked 1A1 in a waste beaker. Connect a
union, 1/16" female to 1/16" female, to the piece of tubing marked 1A2.
Connect a union, Luer female to 1/16" male, to the other side of the union.
Connect a Luer syringe filled with distilled water to the union and flush it
through the flow restrictor block. Be careful to avoid spillage if there is a salt
blockage creating back pressure. When the flow path is free continue with
next step.
Move the stop plug from the 2A outlet to the 1A1 inlet in the flow restrictor
block. Connect a piece of tubing from the 2A outlet to waste.
7 Maintenance
7.6 Maintenance when required

7.6.10 Clean pump flow restrictors

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