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Oliver 770 PTO

G

Greg Raser

New User
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 ?

cvphoto83987.jpg
 

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,,,,
 
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.
 

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 ?
 
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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