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JD 3020


 
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keith in mo
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Joined: 27 Feb 2013
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PostPosted: Mon Jan 13, 2020 6:10 pm    Post subject: JD 3020 Reply to specific post Reply with quote

having problems with loader not raising with round bale on it, loader is plumbed in through the filter, new filter, cleaned the screen, new oil. so with the loader
plumbed in there does it run off the same hydraulic pump as the scv's? plugged into the scv's with the same result
 
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matthies
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PostPosted: Mon Jan 13, 2020 7:24 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote

Same pump, have you checked pressure? To heavy of a bale?
 
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Tx Jim
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PostPosted: Tue Jan 14, 2020 3:21 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote


I agree with matthies that hyd stand-by pressure needs to be checked & set at 2350 psi. Where does frt end loader control valve get it's pressure oil? Does FEL control valve have a closed center plug installed?
 
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tim s
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Location: Somerset Ohio

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PostPosted: Tue Jan 14, 2020 5:10 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote

Are you getting your supply oil at the filter??..It is meant for return oil there, the supply should be picked up at the fitting in front of the brake peddles..Just checking...
 
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keith in mo
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PostPosted: Tue Jan 14, 2020 11:53 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote

Oil returns to the filter housing, supply is teed in , in front of the brake pedal
 
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Tx Jim
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PostPosted: Tue Jan 14, 2020 12:37 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote


It's possible the pressure control valve under hood in frt of firewall is blocking pressure to the line that supplies FEL control valve.

Does power steering operate correctly?
 
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keith in mo
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PostPosted: Tue Jan 14, 2020 2:38 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote

once in a great while it acts like it locks up for a second but other than that it works good
 
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keith in mo
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PostPosted: Tue Jan 14, 2020 2:44 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote

FEL control valve does have a closed center plug. round bales are no heavier than what i always feed. always worked great until recently. seems like the tilt works good so i changed the hoses around on the control valve but that didn't make any difference
 
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Tx Jim
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PostPosted: Tue Jan 14, 2020 2:45 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote


As I stated check pressure control valve under hood
 
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matthies
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PostPosted: Tue Jan 14, 2020 5:02 pm    Post subject: Re: JD 3020 Reply to specific post Reply with quote

Maybe you lost a seal in one of the lift cylinders, try and connect a 3000 psi gauge to one of the scv outlets and start there. Use a hose tip, pipe bushing and a gauge.
 
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rrlund
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PostPosted: Wed Jan 15, 2020 4:55 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote

That's my thought. I had a loader do that. Somebody on another forum had it happen too. Like me,he was sure the problem was in the tractor and had gone through everything. It was a lift cylinder on the loader letting oil pass by.
 
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Tx Jim
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PostPosted: Wed Jan 15, 2020 4:59 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote


Failed piston packing on FEL boom cylinder is definitely a possibility well worth checking.
 
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SVcummins
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PostPosted: Thu Jan 16, 2020 2:23 am    Post subject: Re: JD 3020 Reply to specific post Reply with quote

My farmhand loader did the same thing one time and it was bad seals in the hydraulic cylinder
 
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