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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

track jack

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Brian

03-29-2004 18:37:08




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Just wanted to say I purchased a surplus track jack after learning about them here. Best money I ever spent, no pinched fingers, busted knuckles, etc. I would highly recommend to any other rookies out there. Watch which surplus house on price- quite a difference out there. Mine was a 19" for $25 and another $10 or so for shipping.




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Kelly

03-31-2004 13:55:21




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
Let’s not forget that C. L. Best’s build the “Humpback Thirty” in 1915, It was of a low profile and was possible by placing the final drive pinions above the center of the rear idler sprocket (hi-drive). This was 7 years before Cleveland Tractor Co built the Cletrac 9-16 Model F (Hi-Track) that was listed in 1922.



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Dave in Vermont

03-31-2004 05:26:21




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
When my 430 track comes off in a mudhole, I don't have the luxury of moving the master link to the proper spot on the sprocket!
A track jack would be just the ticket. Brian, you mention getting one from a surplus house for $19. Can you email me the details? I see track jacks on ebay, but they're going for $75! Thanks, Dave



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Brian

03-31-2004 06:18:33




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 Re: Re: track jack in reply to Dave in Vermont, 03-31-2004 05:26:21  
I didn't want anyone to think I was selling them so I didn't list the source. I bought a 19" model for $25 from colemans surplus, shipping was $10 something. It takes a 1" socket or wrench on the model I was sent- works really slick. There was another place I found them but they were quite a bit higher for the same thing.



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al

03-31-2004 04:56:16




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
Where can you purchase these track jacks ?



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Brian

03-31-2004 06:19:39




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 Re: Re: track jack in reply to al, 03-31-2004 04:56:16  
search for colemans surplus, at least the best deal I found on them



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T.Mac

03-30-2004 12:54:42




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
The track jack will come in very handy when you have a Hi Track Cat.
T



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Wayne

03-30-2004 20:43:29




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 Re: Re: track jack in reply to T.Mac, 03-30-2004 12:54:42  
I hadn't thought about that, you make a good point there. I work on most of the older equipment that came out before CAT decided they needed to try something new and designed the Hi-track machines. Given that alot of the newer equipment also uses the alligator stlye master link that's bolted together rather than pinned and I can see whare a track jack would in fact be a handy thing to have.....I have seen them listed all over the place but never really saw a real need for one....It's hard to teach an old dog all these new tricks, fortunately I'm not too old to learn some of them.....Thanks for the wakeup... I have heard that CAT is planning to dump the Hi-track design and go back with the old conventional oval track and if I'm not mistaken have already done it on the smaller machines like the and D4's. Wether it's gonna make it's way back into the larger machines I don't know but I've heard they have had so many problems with the design not holding up to the same reliability standards as the old style and were at least considering it.

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george md

03-30-2004 21:09:43




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 Re: Re: Re: track jack in reply to Wayne, 03-30-2004 20:43:29  
Wayne,

The cat hi track is not a new idea, cletrac tried it in the early 20's and soon abandoned it. The loose bushing that cat has added to help
reduce the sprocket wear and prolong the time before
the sprocket spins in the track, is another idea
that they stole from cletrac . The rear engine design is one they liberated from eimco of salt lake city . Cat the follower not the leader.

george

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Karen

03-31-2004 02:50:00




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 Re: Re: Re: Re: track jack in reply to george md, 03-30-2004 21:09:43  
george, you forgot about the planetary steer that CAT copied from clectrac also



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Jared in VT

03-31-2004 10:29:09




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 Re: Re: Re: Re: Re: track jack in reply to Karen, 03-31-2004 02:50:00  
Since we are on the copy topic, let us not forget to sing the praise's of that clever boy from Maine, Alvin Lombard and his track laying Lombard log haulers that made all this crawling possiable! Best and Holt were clever too, but they learned their lessons from old Alvin. Jared



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george md

03-31-2004 08:09:39




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 Re: Re: Re: Re: Re: track jack in reply to Karen, 03-31-2004 02:50:00  
good morning Karen,

Tell our mutual acquaintance I said hi

george



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Karen

04-01-2004 16:21:51




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 Re: Re: Re: Re: Re: Re: track jack in reply to george md, 03-31-2004 08:09:39  
Okee dokee george, I will when I see him this weekend. Have to show up there every once in a while to make sure our mutual aquaintance stays out of trouble.



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Brian

03-30-2004 05:54:44




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
All this wonderful advice AFTER I needed it. (|) If you notice I said I was a rookie, so what is the purpose of a track jack? Very simple tool that with some practice, I'm sure it will take me 15 minutes tops to get a track back together.



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george md

03-29-2004 19:56:01




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 Re: track jack in reply to Brian, 03-29-2004 18:37:08  
Brian,

If you assemble the track on the lower quarter of the sprocket like you are supposed to , you don't need a track jack.

george



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Karen

03-30-2004 03:35:50




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 Re: Re: track jack in reply to george md, 03-29-2004 19:56:01  
GEE I'm a girl and i know that. "wink"



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Wayne

03-29-2004 21:20:17




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 Re: Re: track jack in reply to george md, 03-29-2004 19:56:01  
Right on George. Not trying to knock anybody but most people that don't work on this kind of equipment on a regular basis don't understand how to make the machine do the work for you. It's so easy to get the track back onto the drive sprocket and with the bottom part blocked up to simply let the machine pull the top half down to where it mates up and can be pinned. I see and hear people all the time talking about how hard it is to break and then repin a track on a piece of equipment with several people present to help out. Usually when you hear this their trying to break the track or repin it somewhere on the top side between the idler and the sprocket where it has absoluterly no support either up and down or side to side. Funny thing is I've done it on so many machines over the years it isn't funny and have never had any real problems doing it right by myself. I do have to admit it is easier with two people but when you work alone you do what you have to do and make the machine do as much for you as you possibly can.... Like Dad tought me years ago, you have to work smarter, not harder.....

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