1290 Infinity Quaternary Pump User Manual 175
Maintenance
9
Assembling the Pump Head
3
Assemble the pump head by putting the pump chamber
housing on top of the support ring. Observe correct
orientation of the pin.
Do NOT install the inlet and outlet valves and the
outlet filter at this stage.
4
Loosely close the 4 screws at the rear of the pump head.
The screws will be fixed tightly later.
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