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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Coupling Chain.

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Jim@concordfarms.

01-02-2005 09:51:12




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Does anyone replace the coupling chain on the rear of the engine just as a routine precaution? I'd expect that it's just as worn as any roller chain after 10,000 hours. I thought I'd replace it on one of my tractors (1650) while I had the engine out. Before I walk into AGCO bent over and with my wallet out, I thought I'd ask if this is a standard, commercial size double roller chain that I could buy from Mcmaster-Carr or other supply house? Thanks. Jim.

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Doug S

01-06-2005 16:06:32




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 Re: Coupling Chain. in reply to Jim@concordfarms., 01-02-2005 09:51:12  
These chains are NOT double roller typical chain. They do not have the center row of links in them. They are available from AGCO dealers for about $65 or from A&I products at a lower rate (check with an A&I Parts dealer). These chains are MUCH harder than regular double roller chain also. Sprocket alignment is critical, and also check to see if Hydra Power or Over/Under is supported underneath. Vibration will greatly shorten chain life. I am an Oliver machanic, and this is what I have found out by exsperience.

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Centerplate

01-03-2005 06:47:29




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 Re: Coupling Chain. in reply to Jim@concordfarms., 01-02-2005 09:51:12  
I notice from posts below how some chain couplers blow off in a short time after being replaced. We also learned the hard way over years of using Olivers.
It is very important how well one lines up the sprockets when you install the engine. Inspect the allignment in the top side of the sprockets and on the side. I can do it be feel by running my finger accross the top or sides of the sprocket. If you feel misalignment you need to loosen the engine mount bolts and move the engine sideways to align the sprockets. If misalignment occurs vertically, the engine needs to be shimmed. Up, if its to low or down, if to high. I hope this is clear enough. Any questions, please ask.

Good New Year to all.
Nick

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Jim@concordfarms.

01-03-2005 08:21:44




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 Re: Coupling Chain. in reply to Centerplate, 01-03-2005 06:47:29  
Thanks to everybody. I know from the manual about checking the alignment. I've got a dial indicator with a magnetic base that I'll use to do that. Thanks again! Jim.



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VADAVE

01-02-2005 15:46:08




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 Re: Coupling Chain. in reply to Jim@concordfarms., 01-02-2005 09:51:12  
It"s amazing how some of these chains just sem to go and go and go while others come off. I have a 1655 which I don"t even thionk about the chain while my 1855 was wearing through the cotter pins about every year. Shep Va has experienced the chaions breaking with the horsepower above 130 so I suspect the wear length is horsepower related.
Absolutely replace the chain when you have it out and absolutely use the stainless cotter pins. I didn"t and that contributed to the cotter pins wearing through. Also put them in in the correct direction--the head in the direction of rotation. In addition the lasdt time I replaced mine beveled the holes in the master link pins slightly, just enough to remove any edge.

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dwm

01-02-2005 13:59:53




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 Re: Coupling Chain. in reply to Jim@concordfarms., 01-02-2005 09:51:12  
Agree with other posts. If you replace the chain, replace the sprockets too after that many hours. As far as how often to replace, it's hard to say. We have one Oliver with 6,000 hrs. on it with original chain and sprockets--no trouble ever. The other one has blown off a couple of times in 4,000 hrs.--and sprockets are in alignment.



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WFE

01-02-2005 09:56:22




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 Re: Coupling Chain. in reply to Jim@concordfarms., 01-02-2005 09:51:12  
Buy it from AGCO. It's only about $22 last time I checked, and you're absolutely right to replace it while the motor is out. Replace the sprockets as well, if they are as worn as I usually see them after several thousand hours. These are also through AGCO and are reasonably priced.



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Craig A Tull

01-02-2005 10:34:39




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 Re: Coupling Chain. in reply to WFE, 01-02-2005 09:56:22  
I bought mine from a bearing house, I don't think it was much cheaper though, AGCO dealers are dropping like flies. AGCO just wants too much in fees to be a dealer, I suspect AGCO is in real trouble, in the last year four in my area have called it quits, one, Victoria Oliver was a three generation dealer.
Craig



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cobroller

01-02-2005 14:22:42




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 Re: Coupling Chain. in reply to Craig A Tull, 01-02-2005 10:34:39  
Be sure and check the splines on the transmission input shaft. I would get the chain from a dealer they come with stainless steel cotter pins for the master link.



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