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Implement Alley Discussion Forum

Disk replacement help

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Doug Rogers

07-28-2003 06:27:33




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I have a JD disk on which one of the disks broke so I need to replace it. I can't figure out how to get the broken disk slid down the shaft past the support arms or how to get the new one back on. Does the whole shaft have to be driven out or do you take all of the bolts out of the support arms and lift the whole thin up to get the arms out of the way. Seems like ther ought to be a better (easier) way.

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jdman(MO)

07-28-2003 19:21:29




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 Re: Disk replacement help in reply to Doug Rogers, 07-28-2003 06:27:33  
Just finished replacing several blades on a John Deere 15 foot. First thing I did was build this custom wrench for the big nut, with about a 2 foot piece of pipe handle. Leave the blades on the ground when removing this nut. Hope there is not a lot of dirt under the spacers, Raise the disk and drop the entire gang, and be sure and get the spacers back in the right way. Russ



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paul

07-28-2003 11:00:10




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 Re: Disk replacement help in reply to Doug Rogers, 07-28-2003 06:27:33  
Welcome to some fun. It's always an inner one that breaks, more work.... Loosen the big nut on the end first. This can be a challenge, easier (relatively) to do when the disk is still holding it all in place. My JD disk is hyd lift, and has one pin going through each of the 3 bearings. Lift the disk, put blocking under it, & pull the 3 pins. The whole gang will roll out. On some designs it may be easier to just remove the supports as you come to them, pull off blades & spacers, then remove the support. Cuss some & rip up your knuckles getting the bearings off. Plan on replacing them, by the time you get them pounded/ torched off. Once in a while everything comes off real easily. Once in a long while. --->Paul

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ShepFL

07-28-2003 11:35:31




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 Re: Re: Disk replacement help in reply to paul, 07-28-2003 11:00:10  
Just what Paul said but add an extra dose of cussin'. I rebuilt an IH 37 10 ft. disk and never thought I would get it apart. Once apart I never thoght I would get it back together. Patience is a VIRTURE! Best Wishes



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Jerry D in NC

07-28-2003 11:53:22




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 Re: Re: Re: Disk replacement help in reply to ShepFL, 07-28-2003 11:35:31  
Personally there is going to be more than one broke before I touch the doggone thing. When I put that much effort into it I am going to change them ALL. LOL



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ShepFL

07-28-2003 20:12:27




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 Re: Re: Re: Re: Disk replacement help in reply to Jerry D in NC, 07-28-2003 11:53:22  
Oh he who speaks from experience. Learn well from others mistakes. I could not agree more.

One other note - when one breaks do not put the smoke wrench to the blade to smooth out the break. It will only break even more and more and more. . . Pulled that stupid stunt last yr. on my harrow and didn't learn. Turned right around and did it on my "rednecked" new ground plow (disk plow/pan plow). Still have to go get new 26 inch disks to fix up the plow as front disk is 1/3 of what it was.

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thurlow

07-28-2003 09:24:35




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 Re: Disk replacement help in reply to Doug Rogers, 07-28-2003 06:27:33  
I assume you're talking about a broken blade???? Have always found it simplest to just drop the whole gang, usually taking the bolts out of the bearing hangers. Depending on how it's made, you may be better off to loosen the axle nut(s) while its still on the disk..... .



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