4
Open the black plastic screw of the inlet valve at the
bottom of the left primary pump head (1) and remove the
inlet weaver by first pushing it downwards (2) and then
pulling it out to the left (3).
1290 Infinity Quaternary Pump User Manual
Remove the Pump Head Assembly
5
Loosen the inlet valve. Keep the inlet valve installed to
the pump head assembly.
9
Maintenance
173