Agilent Technologies InfinityLab LC Series User Manual page 147

8 Maintenance
Maintenance of a Pump Head with Seal Wash Option
G5654A only: Seal Holder (Bio-inert) (G5611-60016) consists of two separate
NOTE
parts: seal holder and backup ring. Make sure to install the backup ring in the
correct way as described below in order to avoid damaging the piston seals.
1 Place the pump head on a flat surface. Loosen the lock
screw (two turns).
3 Remove the seal holder and the seal wash support rings
from the piston housing.
5 Lift the housing away from the pistons.
Agilent InfinityLab LC Series 1260 Infinity II Isocratic and Quaternary Pumps User Manual
2 While holding the lower half of the assembly (piston
housing), carefully pull the pump housing away from the
piston housing.
4 Remove the seal holder from the support ring
assembly.
6 Check the piston surface and remove any deposits or
layers: clean the piston surface with abrasive paper and
rinse with 2-propanol. Replace piston if scratched.
Piston Surface
147