John Deere 4420 Drive Belts

Paul swpa

Member
The top drive belt seems real loose to me. All the manual talks about is adjusting for the lower belt which seems to be pretty good. Anyone ever have this?
These are the propulsion belts I'm asking about.
 
Sounds like someone replaced just one belt at some time. It's best if these belts are replaced together. Also, when adjusting the belt tension loosen the fittings on the cylinder so the belts can center themselves. Quite often this is not done and causes one belt to stretch. Mike
 
Thanks for the info Mike. We bought this unit,used, a couple years ago so who knows what might have been done before we got it.
 

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