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Cogs in trans. of JD 620

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Pat

05-29-2003 06:40:51




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I just bought a JD 620. I noticed now and then that the left rear wheel would lock up when I would just start moving ahead. I pulled out the brake and noticed that 2 cogs were broken off the brake shaft. I drained the trans. oil with hope that the cogs would fall out with the oil but no luck. Someone told me to take out the PTO and get them that way. That would work for IH but I'm not sure about my JD. I tried a wire, but that was hopeless. Anyone have any ideas on how to get them out and why this happened?

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Pat

05-29-2003 13:27:06




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 Re: Cogs in trans. of JD 620 in reply to Pat, 05-29-2003 06:40:51  
Thanks for the info Clooney. My uncle had a 520 that split apart. He said it was because the cold weather helped pick-up a cog in the oil. That's why I was thinking I should try to get it out. The very first thing I did was look at the bull gear and I didn't see any other cogs out. Now I'm thinking I better take a second look.



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Clooney

05-29-2003 11:10:27




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 Re: Cogs in trans. of JD 620 in reply to Pat, 05-29-2003 06:40:51  
Pat, First, before spending a lot of time fishing for those gear teeth, use a light & look into the brake shaft hole in the tractor main case, then move the tractor or jack it up & roll the left rear wheel. LOOK CLOSELY at the bull gear teeth as it usually take a bull gear tooth with it when it shears a brake pinion gear tooth. If that's the case you will have to pull the rear end apart anyway. ~If the bull gear is ok, you can fish around in there with a magnet, either through the bottom drain holes, or pull the trans top cover & fish that way. Or, you could just let them stay where they�re at. Those teeth are heavy & will stay glued to the gunk in the bottom of the trans or rear axle.
~There�s no use trying through the PTO hole as it doesn�t go directly into the rear end area...

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