JD 6620 - pulled the rear axle out of the combine

andy r

Member
The rear axle tore out of the tube welded to the combine. Dropped the rear right wheel into a tile hole. I don't think it bent or broke the axle with the wheels. The axle is laying between the combine shoe and the chopper. The shaft that goes into the outer tube is still intact to the rear axle. When it pulled out it did tear open the outer tube welded to the combine. When I reach in to the tube I can feel the front and there seems to be some torn metal in there as well. I believe this is the standard rear axle and not the heavy duty. I have some questions ...

1) What is the best way to raise the rear of the combine so I can get some blocks under the rear frame? Just looking for how someone might have done it without digging a big hole.

2) Can I put the axle back in on a short term basis using a chain and binder to hold it in while moving it slowly to the shop? Any other ways to move it????

3) How have people fixed this situation when the rear axle is ripped out of the combine? Seems to me the damage could be straighten and reinforced or could the tube be cut out and another welded into the combine????

Any other information would be appreciated pertaining to the rear axle. Fortunately I was able to work most of the day with another combine. Thank you for repair information.
 
We had the axel tube break on a 1460 IH years ago out in the middle of a muddy field. We used two tractors and a heavy cable hooked to the top of the three point adapters. We used one for a dead man and pulled with the other, lifted it right up without any trouble.
 
I went to John Deere Parts and looked at what I have. I have the standard frame that bolts up under the rear of the combine. The frame that you can add little "T" weights. Then I have the adjustable rear width axle that they call heavy duty for sidehill combines, but it is not the real heavy duty axle shown in the parts. Sort of looks like a 3010/4010 front axle. This is a level land combine. Looks to me like the stub shaft is actually part of the frame that bolts up under the combine. Parts does not show it to be separate, but rather part of the entire frame. It has come out and stayed with the axle. The axle is what has the grease jerk - so the axle and this stub shaft are independent. How was this stub shaft held in???? Could I just stick it back in, close up the rips, reinforce it, and weld it tight???? Then slide the axle back on?? I guess I could get another sub frame with the stub shaft attached at a junk yard. Thanks.
 
I had the rear axle break out of an M gleaner and I lifted it up with my loader. I had a wood post in the bucket and lifted under the hood.
 
I"d empty the grain tank and raise the header, then use one of the other guys" ideas to raise the rear. The header can offset a lot of weight and make the lift pretty easy. A cable with a loader on each side would work, too.
 
We had that happen on a nh tr 70 one time and it wrecked the machine. It twisted the box tube tha axle was mounted to and acted like a turnbuckle and pulled the sides of the combine in tight against the shoe. Insurance got that one.
 
I had a few minutes this morning to look at the axle. The solid shaft pulled out of the "box" which is nested between the channels that go to the side frames of the combine. Looks like the the breaks could be heated and pounded back and the shaft welded back in. It broke all of the welds around the solid shaft. There are some old cracks that had rust on the sides so it had been stressed before. Fortunately I am running my other combine and it is not an emergency. I will pick it up next week.
 
Had it happen to a JI Case 1660 combining sunflowers. About 1 am in the dark, going like a bat out of heck, didn't see that the landowner had got stuck with the tractor and cultivator and left some deep ruts. Rear wheels wedged in the ruts and sheared the bolts holding the rear axle on. Only damage was to the steering cylinder and hoses. Hard to get them up on soft ground and replace axle.
 

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