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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Oliver 770 PTO

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Greg Raser

04-04-2021 19:22:27




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I am replacing the pto shaft in my 770,, it shows 3 bearings on the shaft in the repair manual,,, #1 in picture,item-69, 1KS5030A, #2 item-70, 1KS5031,, and #3 item-67, 1CS501. all are sealed on one side,,, it is hard to tell in manual, what direction these bearing go,, as in, what direction, do the sealed side of bearings face. Do they face to the rear of tractor, or front of tractor ?

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Greg Raser

04-06-2021 04:47:17




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
That is an excellent point Tramway,,, just looking at bearing one,, the bearing between transmission and pto compartment,,, "if" the open side of bearing, is facing to the front, it could get some oil splash from transmission, but would not get much which tractor setting still, but,that being said, with open side of bearing facing towards pto, it would get oil splash from gear spinning, with pto engaged, but not much with pto off,,,,you can have the same idea with all three bearings,,,, how do they get lubricated ?

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Tramway Guy

04-05-2021 20:39:35




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
I guess it boils down to whether the bearing(s) are supposed to be lubed from the PTO housing or not. In the case of #1, it COULD be oiled from the transmission but wont get much lube in stationary work.



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Greg Raser

04-05-2021 08:22:12




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  




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Greg Raser

04-05-2021 06:36:21




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
Bearings #1 and 2



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Greg Raser

04-05-2021 06:15:49




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
I can not send the pictures,, says forum is blocking them for spam reasons,,,, ?



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Greg Raser

04-05-2021 06:12:52




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
I am agreeing with you,, but,,,, I took this picture as I was taking it apart,,,, I was thinking the #2 bearing was installed the wrong way, when it was worked on before me.,, I did not get a good picture of bearing #3,when I took it apart,,but found a picture of the seal facing forward,in shop manual, which got me confused,,,,



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Tramway Guy

04-05-2021 05:30:24




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 Re: Oliver 770 PTO in reply to Greg Raser, 04-04-2021 19:22:27  
The seal on #1 should face forward. #2 and #3 towards the rear.



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fastfarmall

04-06-2021 15:16:42




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 Re: Oliver 770 PTO in reply to Tramway Guy, 04-05-2021 05:30:24  
My neighbor has got a 1555 Oliver, they use that on the auger 10 hours a day, did they change the bearings on them U know ??



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