1290 Infinity Quaternary Pump User Manual 179
Maintenance
9
Assembling the Pump Head
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.
11 For the primary pump head, install the inlet valve and
outlet valve using the torque wrench, which is included
to the 1290 Infinity Service Kit p/n 5067-4699. Set 10 Nm
for the inlet valve and 10 Nm for the outlet valve.
12 Push in a thin pin for removing the old filter frit from the
filter assembly. Insert a new filter frit (p/n 5067-5716) in
the correct orientation (observe different thickness of
holder on either side).
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