GE AKTA avant User Manual page 316

7 Maintenance
7.6 Maintenance when required
7.6.10 Clean pump flow restrictors
Step
6
7
Note:
316
Action
Refill the syringe with distilled water and press gently to flush the flow path
through the flow restrictor. Be careful to avoid spillage if there is a salt
blockage creating back pressure. The flow restrictor itself will also create
some back pressure. Continue until the flow path is free.
Reconnect the pieces of tubing marked 2A, 1A1 and 1A2 and place the buffer
bottles on top of the system again.
If blockage is flushed away with water, stronger cleaning solutions can then
be used. Pump the cleaning solution through the pump in a standard manner
and out to the Injection valve waste oulet.
ÄKTA avant User Manual 29035184 AE