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Re Tracks and Sprockets
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 960 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Topic: Re Tracks and Sprockets
    Posted: 02 Jul 2016 at 4:25am
Things you finally notice.

My previous track experience was a well worn TD 6 and I didn't notice this.

Took our FA 10 for a lap cleaning up some old fence lines for replacement and cleaning out some pretty large (like two foot six diameter eucalyyps - helped by a bit of rain).

And will still describe it as a very competent dozer.

I now notice that it only uses every second tooth on the sprockets.

How do you balance that in track wear?
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Dozer View Drop Down
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Joined: 16 Aug 2011
Location: SW New York
Points: 689 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Dozer Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2016 at 6:17am
It is called "hunting tooth" The sprocket or gear has an odd number of teeth. The chain link spans 2 teeth. Every other tooth engages the chain on one revolution and the teeth that did not engage in the first revolution do engage in the next revolution. The purpose is to make the sprocket last longer.
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 960 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2016 at 4:21pm
Dozer

Sprockets are 28 teeth and the wear marks say it isn't using every second tooth
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 51401 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2016 at 6:00pm
IH, didn't have the hunting tooth design, AC did...
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41485 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2016 at 9:32pm
Hunting tooth - somehow it is suppose to balance out to the track and sprocket wear pattern - OR if not - all you need to do is run the track so loose it jumps one cog - and hope something doesn't break in the process or track doesn't fall off . 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 960 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jul 2016 at 4:22am
Coke

It is all new running gear with about 2000 hours on it and the 5 link measurement is showing negligible wear as yet.

With my age and our useage it won't be me who has that worry
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41485 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jul 2016 at 9:41am
Ian - Now you sound like me when someone says I should by a New Motorcycle - tell them my 68 and 75 Nortons still run and I will worry about it later as they will still be running even if I am not .
 Same with my HD5G 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
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Points: 960 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jul 2016 at 9:53pm
Coke

I'd guess that a 75 Norton would be one of the last Commandos?
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