John Deere 6620 auger under straw walkers

andy r

Member
This is a John Deere 6620 sidehill. I had noticed a slight "thump, thump, thump" from the rear end. I took the left wooden block off of one of the five auger shafts under the straw walkers and found that the hollow tubular shaft was only half there. So, when the tubular shaft turns it is sort of dropping up and down in the wood block. I think the wood block was sort of worn and allowed the hollow shaft to be cut on the sheet metal that holds the wooden bearings. So, I have some questions. Does the pan that the augers sit in hinge up front drop down in the rear? I really doubt that it does. Can the augers be pulled out without taking the rear hood or other side sheets off??? If it ends up being a time consuming project I am just going to put a tight fitting shaft into the auger tube, weld it, and make a new wooden block with a hole the size of the new inserted shaft. Any ideas on the proper removal and repair are appreciated. Thank you.
 
You can remove the drive gear and bearing front the front of the shaft, push it into the combine then pull it above the pan(should be a removal shield above the auger drive assembly OR if the rear of the shaft can be moved away from the rear support (bolts removed and wood block slid off) put two blocks of wood and longer bolts to get to a new part of the shaft. Did this several times 20 years ago while at the dealership. One of these should fix you up without burning the combine up. chris
 
Matthies, yes, that is exactly what I need - more good auger shaft sticking out so it will go into the bearing. Are you putting the new wood block on the inside of the sheet metal that holds all of the wood blocks/augers up? Didn't quite understand your procedure 100%.
 
Yes just slide the old block off of the shaft then put new block on first then old block as a spacer the bolt it up with longer bolts, I went and looked at jdparts and knew I did this on the 9000 series for sure and thought I did a few 6620's also. chris
 
I might be able to put a new wood block bearing on the other side of the bearing support where the shaft is good. Auger flighting might be in the way, and to get the new wood block over the shaft I would have to tear the side to side support out. Only one wood block can go on the outside as I think the straw walker throws would hit it. In fact the top of the wood blocks are tapered so the straw walker crank won't hit it. I am still thinking the simplest way would be to slide a shaft into the auger shaft, add a couple tacks with the welder, and bore my own wood block to fit.
 

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