1290 Infinity Quaternary Pump User Manual 155
Maintenance
9
Replacing the Pump Head
8
Use a new pre-tested pump head assembly including
valves and an outlet filter.
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.
9 Install the new pump head assembly by tightening the
screws step by step. Apply 5 Nm using a torque hex key,
which is included to the 1290 Infinity Service Kit p/n
5067-4699.