Combines rotor drive sheave vibration

aussie

Guest
Are you sure the vibes are caused by the sheave. A common cause for this sympton is an uneven buildup of material on the backs of the thresher bars. If the RH shaft is bent a dail indicator running on the sheave periphery while it is turned by hand should show it up.
 

bucko

Guest
i dont think sheave is causing vibes but is an indicator of the problem. a dial guage set on outside edge confirms its not running true, just cant remember what the runout was.i feel the shaft is bent, but hoping to get some ideas before i dive in. clutching at straws cause if shes bent it will be an expensive find.
 
 
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