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Oliver 1850 / 540 Pto / Pto running slow .

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Jordan1837
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PostPosted: Mon Jul 08, 2019 12:22 pm    Post subject: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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
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PostPosted: Mon Jul 08, 2019 1:42 pm    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote


Is your Bushog a 1000 RPM?
 
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Jordan1837
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PostPosted: Mon Jul 08, 2019 1:56 pm    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

No most all of my equipment is 540 .
 
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oliver90owner
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PostPosted: Mon Jul 08, 2019 2:54 pm    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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J. Schwiebert
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PostPosted: Mon Jul 08, 2019 4:24 pm    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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ztrmowers
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PostPosted: Tue Jul 09, 2019 5:43 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

sure your tractor is at correct rpm of 540 or close
 
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J. Schwiebert
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PostPosted: Tue Jul 09, 2019 10:47 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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Jordan1837
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PostPosted: Wed Jul 10, 2019 5:28 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

My email address Softail78@hotmail.com
 
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Jordan1837
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PostPosted: Wed Jul 10, 2019 5:34 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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Jordan1837
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PostPosted: Wed Jul 10, 2019 5:36 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

Shaft driven to gear box ( no belts )
 
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Jordan1837
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PostPosted: Wed Jul 10, 2019 5:45 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

Handle is on the right side of operator .
 
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oliver90owner
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PostPosted: Wed Jul 10, 2019 6:35 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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Donald Lehman
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PostPosted: Wed Jul 10, 2019 6:04 pm    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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rrlund
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PostPosted: Thu Jul 11, 2019 8:31 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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90 Percent Retired
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PostPosted: Thu Jul 11, 2019 9:33 am    Post subject: Re: Oliver 1850 / 540 Pto / Pto running slow . Reply to specific post Reply with quote

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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