WTF Any1 know how to fix Brand National Table Fan oscillatin

my table fan is making " tak tak" sound from the oscillating knob or clutch knob when moving,
any1 know how to fix it,

The rotor PVC gearing may be broken (most probably) / dislocated. You need to open up the whole motor module or send it to any electrical repair shop. They will advise you if the fixable or not.

i did open up and everything seem to be ok , the pvc seem to be good too, nothing broken

oscillating arm dislocated or bended?