Agilent Technologies G7104A, User Manual

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