Claas Dominator 85 drum

[Ndriçim]

Hello to everyone. I hope you are OK. I wanted an expert opinion from you if you have the opportunity. I bought a Claas Domimator 85, and at work had a problem with drum. During the work drum start moving left to right colliding with the rubber.

Thank you in advance

 

[Gapples]

That pulley is the ground speed variator pulley.
Is the whole pulley moving or is the shaft it sits on moving ?
IF you take the wheel just be careful as there's a huge spring under there, it's possible the retaining studs are coming loose, that or the pulley retaining bolt coming loose.

 

[fermerboy]

As gapples says that is the variation pulley that drives the clutch and gearbox. Depending on tyres the clearance to the tyre can be very tight. If the pulley is moving it is either loose on the shaft or the whole shaft is moving on its bearings.

 

[Ndriçim]

That pulley is the ground speed variator pulley.
Is the whole pulley moving or is the shaft it sits on moving ?
IF you take the wheel just be careful as there's a huge spring under there, it's possible the retaining studs are coming loose, that or the pulley retaining bolt coming loose.

Thanks for your time and response. Yes the whole roll moves, from the inside out, and contacts the tire.