Disassembling The Secondary Pump Head - Agilent Technologies 1290 infinity Technical Note

2
Pump Head Maintenance (Binary and High Speed Pumps)
Secondary Pump Head

Disassembling the Secondary Pump Head

Tools required p/n
8710-0510
G4220-20012
G4220-20013
01018-23702
Damage of pump piston
C A U T I O N
The pump piston is made of ZrO
material, but it is sensitive to shearing forces from the side.
➔
➔
1
Remove the filter assembly at the top of the pump head.
32
Description
Wrench open 1/4 — 5/16 inch
Torque wrench 2 – 25 Nm
4 mm hex bit
Insert tool
Do not try to remove the pump piston from the rear.
Do not use the piston for removing pump seals.
-based ceramic, which is a very hard and resistant
2
2
For disassembling the pump head, remove the 4 hex
screws at the rear of the pump head.