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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

Oliver 1550 chain coupler

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02-12-2021 16:58:01

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Overhauling the engine on our 1550 and doing some other odds and ends. Chain coupler is wore out and should’ve been replaced a long time ago and the input shaft is pretty worn.

Having a hard time finding a shaft but was wondering if I get the sprocket with extended splines can I tack weld it to the shaft and be ok?

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P I Pete

02-13-2021 07:15:47

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 Re: Oliver 1550 chain coupler in reply to Jiabreaker, 02-12-2021 16:58:01  
On my 1650 the input shaft was about worn out got a gear from a guy, he said it was from inside trans. internal splines were same as in put shaft, put side by side and welded together worked fine. Chain coupler I got from a power transmission out fit buy it by the foot and coupler link too.


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Mitch Poindexter

02-13-2021 07:13:43

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 Re: Oliver 1550 chain coupler in reply to Jiabreaker, 02-12-2021 16:58:01  
As NYOlivers pointed out, call Maibach's or visit their store online, type "Oliver 1550 1555 1600 1650 1655 Tractor Extended Coupling Sprocket Gear 155533A" into your favorite search engine and it pulls up the extended sprocket gear. I have a 1550 and its input shaft was just as you have described, this gear fixes that problem. No need to replace the input shaft so long as you have good splines just behind the worn out area.

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02-13-2021 05:07:43

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 Re: Oliver 1550 chain coupler in reply to Jiabreaker, 02-12-2021 16:58:01  
I think Maibach's makes a coupler for that problem. I know they make it for 1650/55 tractors. Give them a call.

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02-13-2021 06:05:32

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 Re: Oliver 1550 chain coupler in reply to NYOlivers, 02-13-2021 05:07:43  
But he said there was shaft wear.

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02-13-2021 04:07:30

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 Re: Oliver 1550 chain coupler in reply to Jiabreaker, 02-12-2021 16:58:01  
NO..It will be too ridged and resulting vibrations can do other damage. Keep looking for replacement parts.

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02-13-2021 15:51:18

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 Re: Oliver 1550 chain coupler in reply to ziffel, 02-13-2021 04:07:30  
I replaced mine on the 1750 awhile back. Agco has the shaft. A&I makes an aftermarket for quite a bit less. It was a lengthy job replacing it.

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