Agilent Technologies 1290 Manual page 7

3 Remove the front part of the pump head
including pump chamber housing with pump
seal and support ring. If the seal wash option
is installed, also remove the seal holder with
backup seal and gasket.
• Make sure, that the backup ring inside the
seal holder does not drop out. Do not
remove it from the holder..
Support ring
Wash seal PE for seal wash
Gasket (seal wash)
Seal holder with backup ring
Pump seal
Pump chamber
housing
5 Use the insert tool of the pump head
alignment tool for removing the pump seal
from the pump chamber housing.
• Do not use the pump piston for that
purpose!
Agilent 1290 Infinity Pump Service Kit
4 Remove the piston from the piston housing by
pushing it to the rear, then pull it out from the
rear..
6 If the wash seal shall be replaced by a new
one, use a screw driver for removing it.
Wash seal
7