174 1290 Infinity Quaternary Pump User Manual
9 Maintenance
Assembling the Pump Head
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.
Damage to the pump head
Using a wrong torque will damage the pump head.
➔ For handling the torque wrench, setting and applying the right torque, consult the
manual of your torque wrench.
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. Wet the piston
seal with isopropanol or another suitable solvent before
insertion.
2 Insert the support ring and pump head ferrules into the
piston housing. Observe the pins on the support ring,
which help you assembling the pump head correctly.
Insert tool
Pump seal
Pump chamber housing
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