Agilent Technologies 1290 Manual page 10

1 Remove the filter assembly at the top of the
pump head. See Agilent 1290 Infinity Binary
Pump User Manual for replacing the filter frit..
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
10
2 For disassembling the pump head, open the 4
hex screws at the rear of the pump head..
4 Remove the piston from the piston housing by
pushing it to the rear, then pull it out from the
rear..
Agilent 1290 Infinity Pump Service Kit