22
Replacing the Pump rotor and stator
Procedure for Waterboy 3 inch and 4 inch helical rotor pumps is the same but 3 inch pumps have 3
bolts on the top of the pump housing and on the pump body while the 4 inch pumps have 4 bolts.
Always ensure the solar panels are disconnected from the controller prior to any work being
carried out.
Dismantling the worn pump assembly
Procedure:
Remove the bolts from the top of the pump housing and set aside.
Lift the top end off the pump and slide along the cable out of the way.
Remove the stator.
Remove the bolts from the body and slide up off the rotor out of the way.
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