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

Oliver 1850 / 540 Pto / Pto running slow .

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Jordan1837

07-08-2019 13:22:42




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I have a 1968 Oliver 1850 . I hooked it up to a brushhog and it seems to not have the speed I need to cut properly. I m using the 540 shaft . I m reading some posts of being able to switch Pto speeds on the rear of the tractor . Is this possible n if so how. I would be Thankful for any n all reply s Thank you , Jordan




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J.Wondergem

07-14-2019 06:29:46




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Quoting Removed, click Modern View to see

Randy, my 2255 is set up to run a 540 shaft at 1000 RPM. I never had it apart to see how they did it. I run my bush hog on it, but the governor isn't touchy enough to keep it at 540. It lags some, and goes over some going down hill, but I still use it.



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gary66

07-12-2019 02:03:21




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
you should be able to get lots of speed out of that hog...somethings not right. I use a woods ditchbank chopper on mine and I'm never at the RPM's recommended, (2500) plenty of speed. I'm sure the thing takes more power than a pull behind with so much extra linkage going on and still I don't need more speed.

lower the gear, crank the rpm's, if it isn't chopping somethings wrong. I'd check the rpm the chopper is made for before changing the pto.

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90 Percent Retired

07-11-2019 10:33:00




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
I could be wrong, but my memory tells me that you would have to disassemble the PTO and modify the feature that prevents the shift rail from being moved to the 1000 RPM. I think that was the reason for the different length of the shafts. I suggest checking the operators manual to make sure. I think the length of the 540 and 1000, that inserts into the PTO were different to prevent the 540 being inserted all the way when the shift rail was in the 1000
position.

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rrlund

07-11-2019 16:19:35




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to 90 Percent Retired, 07-11-2019 10:33:00  
I thought I remembered stories of folks running the 540 shaft with it shifted to 1000 to run augers and different things like that at lower engine RPMs. Maybe not,but I think those shafts are the same length.



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Donald Lehman

07-10-2019 19:04:50




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Olivers of that period were rated 540 PTO rpms at wide open throttle. Most tractor PTO's are at 540 rpms at something less than wide open. If you are running wide open throttle and it seems okay until you put the bush hog under load, the PTO clutches are probably slipping.



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oliver90owner

07-10-2019 07:35:32




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Little wonder it is running slow if you are running the engine at only 1800rpm. Look up the rated engine speed!



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Jordan1837

07-10-2019 06:45:19




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Handle is on the right side of operator .



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Jordan1837

07-10-2019 06:36:22




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Shaft driven to gear box ( no belts )



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Jordan1837

07-10-2019 06:34:20




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Was running the RPM s around 1800 to 2000 . The brushhog is a shaft driven unit.

Then I can take the brushhog off the Oliver and put it on the JD and it runs fine .
My Email. Softail78@hotmail.com



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rrlund

07-11-2019 09:31:12




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-10-2019 06:34:20  
That answered the questions I was going to ask. I put an engine out of an 8700 White combine in mine and it tops out at around 2000 RPMs because I never got the pump reset.

Somebody correct me if I'm wrong,but if that's a 2 speed unit,you can run it at 1000 RPMs with the 540 shaft in it can't you? That would remedy the problem and then some.



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Jordan1837

07-10-2019 06:28:52




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
My email address Softail78@hotmail.com



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J. Schwiebert

07-09-2019 11:47:03




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
How much "snap" do you have on the handle when you engage the PTO clutch? Also is your handle on the right or left side/



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ztrmowers

07-09-2019 06:43:48




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
sure your tractor is at correct rpm of 540 or close



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J. Schwiebert

07-08-2019 17:24:27




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
You will only be able to change PTO speeds if the unit is a dual speed unit. Post your e-mail address or send me one.



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Jordan1837

07-08-2019 14:56:51




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
No most all of my equipment is 540 .



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J.Wondergem

07-08-2019 14:42:02




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to Jordan1837, 07-08-2019 13:22:42  
Is your Bushog a 1000 RPM?



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oliver90owner

07-08-2019 15:54:50




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 Re: Oliver 1850 / 540 Pto / Pto running slow . in reply to J.Wondergem, 07-08-2019 14:42:02  
Yep, sounds more like the machine is running slow, not the tractor pto.

Maybe the blades need sharpening? Belts need adjusting?

Tell us the pto speed and engine revs. If the pto speed is incorrect, there must be another fault which needs fixing.



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