Agilent Technologies Infinity Binary Pump VL 1290 User Manual page 144

9
Maintenance
Disassembling the Secondary Pump Head
3
Remove the front part of the pump head including pump
chamber housing with pump seal and seal holder. If the
seal wash option is installed, also remove the support
ring with wash seal and gasket.
Support ring with
wash seal
Seal wash gasket
Seal holder
including backup
ring
Pump chamber
housing
5
Check the pump pistons for scratches, grooves and dents
when changing the piston seals.
N O T E
Damaged pistons cause micro leaks and will decrease
the lifetime of the seals.
144
4
Remove the piston from the piston housing by pushing it
to the rear, then pull it out from the rear.
6
Use the soft plastic side of the insert tool for removing
the pump seal from the pump chamber housing.
Insert tool
Pump seal
N O T E
Do not use the pump piston for that purpose!
Agilent 1290 Infinity Binary Pump User Manual