Brake drum wobble

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Jason37756
440 crawler
440 crawler
Posts: 172
Joined: Thu Dec 15, 2016 8:23 am
Location: Tennessee

Brake drum wobble

Post by Jason37756 » Sun Apr 26, 2020 7:24 pm

I've seen this to varying degrees on a few drums.

This particular drum wobbles nearly bad enough for the drum to touch the final drive case.

Here's my question, what specific part creates the wobble?

It seems to me the cir clip on the pinion shaft would be the obvious pivot point, but how does one reduce the slack?

The machine turned fine as have the previous units with wobble.

1974 350BE

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Lavoy
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Re: Brake drum wobble

Post by Lavoy » Sun Apr 26, 2020 9:19 pm

Bad bearings, broken drum, bad pinion shaft, either way I woukd park it and pull the final.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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Jason37756
440 crawler
440 crawler
Posts: 172
Joined: Thu Dec 15, 2016 8:23 am
Location: Tennessee

Re: Brake drum wobble

Post by Jason37756 » Mon Apr 27, 2020 6:55 pm

You're gonna like this.

I just realized I had taken the quill off to inspect the gear...I was looking at the drum today and just happened to turn the final drive around to reposition it and seen my forgetfulness.

It was late the other night when I took the final drive off the dozer and had totally forgot about removing the quill.

Now if it wobbles too much when I put the quill back on then we have a problem.

Jason

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Lavoy
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Re: Brake drum wobble

Post by Lavoy » Tue Apr 28, 2020 8:00 am

That will do it!
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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