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John Deere Tractors Discussion Forum
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Removing cast centers on 730 Need Help

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730-LP

10-28-2005 13:46:09




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I have a 730 that I need to take the centers off of .This is what I have done so far.Took all 6 bolts,sprayed with kroil and gibbs,applyed heat and cooled several times,took a pipe and weld a head on it,notched the other end 1/2 way around 3/8 inch so it would only hit one wedge and used a 9 lb hammer nothing has moved. re-sprayed with kroil and left it for the weekend.anyone have any other ideas please post them thanks

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JDM man SD

11-06-2005 15:57:26




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 Re: Removing cast centers on 730 Need Help in reply to 730-LP, 10-28-2005 13:46:09  
730 are the two forcing bolts free. i back out the three in side cap screws to turns then back out the three on the out side then turn in the two .both wedges are tapered and come easy using this method in very hard cases in put bottle jack between hitch & the rim push the rim out 1 in and hit end of axel with 8lb sleage works every time



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G/MAN

10-28-2005 15:42:16




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 Re: Removing cast centers on 730 Need Help in reply to 730-LP, 10-28-2005 13:46:09  
Use the forcing screws to apply a REASONABLE amount of steady pressure against the wedge. It helps to thoroughly clean the threads and use a good lubricant on them, such as anti-sieze or gun grease, as they'll carry a heavier load than penetrating oils or even motor oil. Snug them up against the wedge well, and THEN give the wedge a smack. A couple well-placed (so as not to fold the axle end over) smacks on the end of the axle will also do wonders, and you usually don't even have to hit them all that hard. With the tension of the forcing screws holding the wedges from "bouncing", they'll usually pop loose pretty easy. After a couple of smacks on the wedge or axle end, try the forcing screws again. More than likely, they'll have a little give. Snug them back up and repeat the procedure. After a couple rounds of this, the wedge will start moving quite a bit easier. Just be careful with the forcing screws. Bring them in contact with the wedge, and then just a LITTLE tighter. I broke the centers loose on my "60" a few weeks back, and doing just what I posted, they popped loose fairly easily, seeing as how I know they hadn't moved for at least 25-30 years. And those are probably the same centers found on your 730. There are guys that have time to soak and soak forever to the point that they'll easily come loose eventually, but when it has to be done and done now, you do have to use a little "force".

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