jd 450b track and final drive

rock digger · Post by **rock digger** » Sat Mar 02, 2013 5:59 pm

Today I was plowing snow with my 450b as I went in to reverse I heard a crunching noise,looking down to my left as on the tractor I could see the left track was very loose. I backed up a short ways to see if I had thrown the track. It was still on the sprocket I got off tractor and noticed the sprocket seemed to lean outward and sat alot lower on the bottom than the other side.

After checking to see if the spring or antythimg I could see was broke I could find nothing easy to see had failed. I then tried to move and no power to the left track at all. Right side is fine and cluthces seem to work. After about an hour of fighting it and pulling with another tractor it is in the shop.

With all that said does anybody have any Ideas were to start looking?
I have never had any touble with undercarige it was like new when I bought it. I have all the books but they don't say alot about it at this point.

Thanks in advance for any info Rock Digger.

jtrichard · Post by **jtrichard** » Sat Mar 02, 2013 6:37 pm

drain the oil out of the final and see what else comes out if your lucky you just lost some bearings.... looks like you will be pulling the track,sprocket and the final

rock digger · Post by **rock digger** » Sat Mar 02, 2013 8:49 pm

JT, is alll of this work from the out side of the case?

jtrichard wrote:drain the oil out of the final and see what else comes out if your lucky you just lost some bearings.... looks like you will be p
ul
ling the track,sprocket and the final

jtrichard · Post by **jtrichard** » Sat Mar 02, 2013 9:01 pm

if its just bearings you should be able to do it with out taking the final off

jtrichard · Post by **jtrichard** » Sat Mar 02, 2013 9:09 pm

but most of the time with a crawler its NOT JUST any one thing

77 Ford · Post by **77 Ford** » Mon Mar 04, 2013 7:59 am

But would bearings make it loose power on that side? They could account for the slack and tilting sprocket but I don't know how it would account for no power. I hate to suggest it but that to me sounds like something more.

jtrichard · Post by **jtrichard** » Mon Mar 04, 2013 12:34 pm

i was thinking (hoping for his sake) that the gear dropped enough to not mesh with the pinon ....but yes it can be far worse

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