Agilent Technologies Infinity II 1290 User Manual page 105

Damaged pump head
C A U T I O N
Disassembling or reassembling the pump head with tools other than the ones
recommended can damage pump heads and significantly reduce their life time.
➔
➔
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.
➔
➔
Procedure is valid for primary and secondary pump head.
N O T E
You may assemble pump head parts only correctly. If parts are in wrong orientation, the
N O T E
screws do not fit in.
Seals:
N O T E
Always orientate the seals with the spring side towards the part.
Store seals in isopropanol and fit seals in wet.
Always ultrasonicate seals in solvent, to clean seals properly.
H I N T
Obey the following order, to clean seals properly:
1 H
2 H
3 H
4 Isopropanol 100%
If the pump head has been initialized without pump, this may have damaged the pump
N O T E
drive. In this case, please contact your local Agilent service organisation.
Agilent 1290 Infinity II Flexible Pump User Manual
Follow all instructions step by step.
Use recommended tools like the pump head alignment tool and a torque wrench.
Do not try to remove the pump piston from the rear.
Do not use the piston for removing pump seals.
O (tab)
2
O (dest)
2
O/Isopropanol 50%/50%
2
-based ceramic, which is a very hard and resistant
2
Maintenance
Pump Head Procedures
7
105