tumbler help

[Rumblebelly]

hello all,

I just got a thumbler's tumbler no.140 model B

The issue i am having is the barrel drifts to the right after a couple of rotations and is rubbing on the back roller. The base is level and the barrel is not even 3/4 full of rock.
I did oil the motor and bushings
Any ideas to correct this?

thank you for your help and hope you all have a wonderful holiday season
Rumblebelly

 

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[BurntBear]

I don't have too much experience in tumblers. I have used them though. Would there be a way to prop the other side up so it has pitch to keep it on the correct side?

 

[CMan1]

Looks like the same model I have. That happened to my unit. I recall I replaced the rubber rollers on the shafts. They may have been nylon or some other material. It's been a few years since I used tumbler.
Get extra band for the motor to have a spare. 3/4 filled should be okay