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Tractor Talk Discussion Forum

rack and pinion axle wedges

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meatcutter

11-01-2006 18:47:58




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I am trying to loosen the axle wedges on a 4430. I finally got the three special bolts backed out 1/2 inch. The jack screws won't turn. My manual says to loosen the wedge before jacking up the wheel. It seems to me the wheel should be off the ground before the wedge will be able to move. What is the proper way to do this job? I have used lots of penitrating oil and hits on the axle with a sledge. Thanks

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JMS/MN

11-01-2006 22:05:41




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 Re: rack and pinion axle wedges in reply to meatcutter, 11-01-2006 18:47:58  
Some say to whack the end of the axle with a post maul. Yes, it may work, but why bang on something you're not trying to move? I've posted my idea before on the JD board, but to save you the bother of looking it up -here it is: Find a heavy wall pipe large enough to slide over the axle, long enough to reach beyond the axle end. Cut away 1/2 the circumference on one end, about an inch or two. Weld a heavy plate over the other end of the pipe. Park the tractor with the wedge on the top side of the axle, lay the pipe over the axle with the extended (uncut) portion against the wedge. Whack the pipe with a BFH and the wedge will break free. One person job.

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R. John Johnson

11-01-2006 19:07:47




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 Re: rack and pinion axle wedges in reply to meatcutter, 11-01-2006 18:47:58  
Check the archives on the John Deere board. Lots of info there. The same system was used on all new generation tractors and subsequent series up to I'm not sure where.

John



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hardscrabble

11-01-2006 19:01:25




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 Re: rack and pinion axle wedges in reply to meatcutter, 11-01-2006 18:47:58  
The wheel does have to be off the ground before moving it. I think the manuel suggests having weight on the axle to help loosen the wedge. But once the wedge breaks loose you won't be moving that wheel anywhere while the weight of the tractor is holding it down. I've had a 3010, 2 4020's, a 4430, and a 4630, and that's the way it was with all of them.



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meatcutter

11-01-2006 19:08:41




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 Re: rack and pinion axle wedges in reply to hardscrabble, 11-01-2006 19:01:25  
I was wondering if leaving the three bolts a little loose and driving the tractor would loosen the wedges. Thanks for your reply.



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Gerald J.

11-01-2006 20:41:18




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 Re: rack and pinion axle wedges in reply to meatcutter, 11-01-2006 19:08:41  
Don't have them real loose, but that has helped mine sometime, but not others. The sledge tapping on the end of the axle can be a 30 pound post mall and be about right. You need to be able to turn the jack bolts. When I first loosened my 4020 wheels I had to use a 3/4 drive socket and a 6' piece of pipe on the slide bar wrench and then they screamed so much I had to wear hearing protection. But they loosened the wedge. I've since replaced them and they worked a little better but a long bar was better than my 3/4" impact wrench to move them.

Gerald J.

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