Posted 12/6/2016 07:43 (#5679278 - in reply to #5679182) Subject: RE: John Deere 6620 combine cylinder speed adjustment
Northeast Missouri
If your combine is an '82 it will not have the dual range drive as it was introduced in 1983. Look to see if the belt is tightened to the gauge by the spring. If it is, odds are your belt is worn and/or stretched.
John Deere 6620 combine cylinder speed adjustment
