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Ford 8n will not lift bush hog when cold?

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Dukefamily5
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PostPosted: Wed Jan 03, 2018 10:49 am    Post subject: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

My Ford 8n will not lift the bush hog when cold. The hydraulic oil is good as new. Can anyone give me some ideas of where to start?
 
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 11:05 am    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

See tip # 16.

Post back w/ what you see.
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Dukefamily5
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PostPosted: Wed Jan 03, 2018 11:16 am    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

CVPost-Bruce (VA) wrote:
(quoted from post at 12:05:53 01/03/1Cool See tip # 16.

Post back w/ what you see.
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Does step 16 apply when the lift arms work when the tractor is warm?
 
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 11:20 am    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

Yes.

You're looking for leaks.

Just how cold is it?

What oil is in it?
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Dukefamily5
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PostPosted: Wed Jan 03, 2018 12:45 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote


I did not see any leaks on the inside. The hydraulic oil was over filled.Once I ran the tractor with the cover off the lift went up. Now it took about a minute before it slowly lifted. Any ideas?
 
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Dean
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PostPosted: Wed Jan 03, 2018 1:02 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

What do you mean by "[G]ood as new?"

When was the oil last changed?

How cold is cold?

Dean
 
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 1:33 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

Dukefamily5 wrote:
(quoted from post at 13:45:40 01/03/1Cool
I did not see any leaks on the inside. The hydraulic oil was over filled.Once I ran the tractor with the cover off the lift went up. Now it took about a minute before it slowly lifted. Any ideas?


We really need you to be a bit more specific in your answers.

As Dean & I asked:

Just how cold is it?

What oil is in it?

How old is the oil?

Over filled is not good. See tip # 4. And the "over fill" could be water.

What color is the fluid?
 
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Dukefamily5
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PostPosted: Wed Jan 03, 2018 1:35 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote


Not good as new its still slugish but it works. It hesitates when you put the lever in the up position. I bought the tractor 6 months ago and the owner said it took 15 min to warm up before the lift would work. The oil is in good condition.
 
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Dukefamily5
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PostPosted: Wed Jan 03, 2018 1:37 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote


The fluid looks clearish yellow like.

The temp is 28 f
 
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Dukefamily5
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PostPosted: Wed Jan 03, 2018 1:38 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote


Im not sure about the oil because the previous owner put the oil in last.
 
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Colin King
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PostPosted: Wed Jan 03, 2018 2:20 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

I think temperature is your primary culprit. Until the sump warms up, the lift will move more slowly when the oil is thick and cold. I'm sure component wear exacerbates the issue, but just give things time to warm up.

Colin, MN
 
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 2:26 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

Well, given that it has no leaks and it's cold (mind telling us how cold?) that could easily be your problem.

Colin lives in MN.

Colin, what hydraulic fluid do you use?
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 2:27 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

Colin, see my question above.
 
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Bruce (VA)
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PostPosted: Wed Jan 03, 2018 2:31 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote

ok, just saw this.

28* is cold enough to turn some fluid to molasses.

What ever Colin uses in MN, you need to use.
 
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ScoutB
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PostPosted: Wed Jan 03, 2018 5:33 pm    Post subject: Re: Ford 8n will not lift bush hog when cold? Reply to specific post Reply with quote


I switched from molasses to UTF two years ago and my hydraulics respond instantly instead of 15 minutes later. I just plowed with it today and all was well at 10*.
 
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