Wilo Pump MAXO 1.25 x 3 – 20

Avoid flow in the pump during dismantling/installation work!

Close the existing shut-off valves in front of and behind the pump!

If no shut-off valves are fitted, drain the system!

Tighten motor fastening screws diagonally. Observe the tightening torques!

Insert sensor cable into the electronic module interface.

Is the electronic module separated from the motor for access to the screws on the motor flange?

For twin-head pumps, is the twin-head pump cable loosened or inserted?

Avoid flow in the pump during dismantling/installation work

Close the existing shut-off valves in front of and behind the pump

Drain the system if no shut-off valves are fitted

Do not place any objects in the contact area of the motor

Ensure correct assignment of pump/electronic module during replacement

Disassembling the Electronic Module

Loosen handle grip of the Wilo-Connector using a screwdriver and pull out socket

Ensure generator or turbine is not operating during pump flow

Close shut-off valves in front of and behind the pump

Drain the system if no shut-off valves are fitted

Ensure no objects are placed in the contact area of the motor

Ensure correct assignment of pump/electronic module during replacement

Disassembling the Electronic Module

Loosen handle grip of the Wilo-Connector using a screwdriver and pull out socket

Allow the pump to cool down before commencing any work

Close shut-off device or drain unit

Follow manufacturer’s instructions and safety data sheets for additives

Dismantle the two-part thermal insulation from the pump housing of single pumps

Loosen screws of the fixing plate

Allow the pump to cool down before commencing any work

Close shut-off device or drain unit

Follow the manufacturer’s instructions and safety data sheets for possible additives in the system

Dismantle the two-part thermal insulation from the pump housing of single pumps

Loosen screws of the fixing plate