Agilent Technologies 1290 infinity - Page 76

76
3 Pump Head Maintenance (Quaternary and Flexible Pumps)
Secondary Pump Head
5
Remove the piston from the piston housing by pushing it
to the rear, then pull it out from the rear.
6 Check the pump pistons for scratches, grooves, and
dents.
NOTE
Damaged pistons cause micro leaks and will
decrease the lifetime of the seals.
Piston surface