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tooth angle on a 806

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Tractor Guru

Joined: 05 Feb 2015
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PostPosted: Mon Jan 13, 2020 3:41 pm    Post subject: tooth angle on a 806 Reply to specific post Reply with quote

What tooth angle did they use on a 806-1206 final drive? Never heard of a 806 final drive failure around here, but i knew that two 1206 Row crops that failed, but they had the wick turned up live the TV would say, the one was run bye a kid that had polio in his right arm, or else it was cut off and he wouldn't or couldn't raise the digger on the corner's, looked at the tractor it had scale on the exhaust manifold like i never seen before!!
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caterpillar guy
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PostPosted: Tue Jan 14, 2020 4:52 am    Post subject: Re: tooth angle on a 806 Reply to specific post Reply with quote

I've heard of the brake shafts breaking on a few 1206's no other problems though and you had to jump on the pedal for that to happen. The Bull gears in both of them are huge compared to earlier models.
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pete 23
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PostPosted: Tue Jan 14, 2020 8:20 am    Post subject: Re: tooth angle on a 806 Reply to specific post Reply with quote

I am 99% sure the bull gears are 25 degree but do know the transmission gears were still the old industry standards 20 degree teeth.

Midway into the 56 series all transmission and pto drive gears were changed to 25 degree.

Failures started to occur in ring and pinion on 1206 models and then into bull pinion and axle bearings later around here.
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