Agilent Technologies Infinity II 1290

Agilent 1290 Infinity II Flexible Pump User Manual 111
Maintenance
7
Pump Head Procedures
Disassemble the Primary Pump Head
CAUTION
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.
1 For disassembling the pump head, remove the 4 hex
screws at the rear of the pump head.
2 Remove the front part of the pump head including pump
chamber housing with pump seal, distance sheet,
support ring, seal holder including backup ring, and the
gasket.
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