Agilent 1290 Infinity Binary Pump User Manual 147
Maintenance
9
Assembling the Pump Head
Wrong orientation of pins on support ring
Assembling the pump head without paying attention to the correct orientation of the
pins on the support ring can lead to leaks or damage of the piston and pump head.
➔ Observe pins on the support ring, which help assembling the parts of the pump head
in the correct orientation.
Damage of the pump head assembly
When installing the pump head assembly, the pump drives need to be in maintenance
position, where they are retracted. Using the pump drive in default position will
damage the pump head assembly.
➔ Bring the pump drive to the maintenance position.
This procedure describes how to assemble the secondary pump head using the pump head
alignment tool. Assembling the primary pump head can be done accordingly. The secondary
pump head has the heat exchanger capillary, which must fit into the openings of the
alignment tool, whereas the primary pump head does not have a heat exchanger.
1
Use the soft plastic side of the insert tool for inserting the
piston seal to the pump chamber housing.
2 If the seal wash option is installed, use the soft plastic
side of the insert tool for inserting the wash seal into the
support ring.
Insert tool
Pump seal
Pump chamber housing
Insert tool
Wash seal
Support ring
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