10 Agilent 1290 Infinity Pump Service Kit
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..
2 For disassembling the pump head, open the 4
hex screws at the rear of the pump head..
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..
4 Remove the piston from the piston housing by
pushing it to the rear, then pull it out from the
rear..
Pump seal
Support ring
Pump chamber
housing
Seal holder with backup ring
Gasket (seal wash)
Wash seal PE for seal wash
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