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rockshaft controls


 
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wejones
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Joined: 01 Dec 2017
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PostPosted: Fri Dec 01, 2017 5:09 pm    Post subject: rockshaft controls Reply to specific post Reply with quote

my 3020 john deere has two levers that control the rock shaft. one on the right seems to be for the depth. it is lockable. the lever on the left is to raise and lower the arms. it seems to have four different positions. what are they? Do the arms do down by weight and gravity or by hyro pressure. I do not have a L and D lever is that normal?
 
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Kent Petersen
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Location: Madison SD

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PostPosted: Sat Dec 02, 2017 3:09 am    Post subject: Re: rockshaft controls Reply to specific post Reply with quote

the right hand lever controls the three point it only has psi when lifting free falls when lever is moved to the rear the l&d lever most likely broke off, the other lever controls the remote valve
 
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Tx Jim
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PostPosted: Sat Dec 02, 2017 3:37 am    Post subject: Re: rockshaft controls Reply to specific post Reply with quote


Welcome to YT
Even if L/D lever is missing the internal mechanism should be present. I curious what 2 levers you think control thew 3 pt? Can you post a photo of these 2 levers? Most farm tractors have only gravity down but no hyd down pressure on 3 pt hitch

Because you are a new member you'll need to contact Chris( site moderater) at "support at ytmag dot com" for permission to post photo.
 
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wejones
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PostPosted: Sat Dec 02, 2017 5:02 pm    Post subject: Re: rockshaft controls Reply to specific post Reply with quote

CVPost-Kent Petersen wrote:
(quoted from post at 04:09:54 12/02/17) the right hand lever controls the three point it only has psi when lifting free falls when lever is moved to the rear the l&d lever most likely broke off, the other lever controls the remote valve


The right hand lever can be stopped at any point by a tighening bracket to control the depth. When it is tighened you cannot move the lever. The tightener is not a stop, it is two bands that tighten along the whole slot for the travel of the lever.The left hand lever has four positions. When it is in the third from the top position the hydros works on the remote ports. When it is in the second from the top postion the remote port will not work.. The top and bottom postions seem to do nothing. I am using the remote ports to operate a loader.
 
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Tx Jim
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PostPosted: Sun Dec 03, 2017 3:48 am    Post subject: Re: rockshaft controls Reply to specific post Reply with quote


Is your tractor's serial number below or above 123,000? I'm still unsure what lever you're referring to that you state has 4 positions & only 3rd position operates which controls remote(scv).
 
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Cliff Nelson
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PostPosted: Sun Dec 03, 2017 5:56 am    Post subject: Re: rockshaft controls Reply to specific post Reply with quote

Assuming this has the hyd levers in the dash, the lh lever is for the remote couplers. 4 positions indicate the control rod has been positioned to allow a float position. From the top position, you have float, raise, neutral, and lower. Depending on the loader valve, it may not do anything in the lower position. Try running a remote cylinder with it before condemning the control valve. RH lever is for 3 point. By your description, it may have been modified with a different stop but should work anyway. L D lever should be by your right heel and could likely be broken off leaving you with whatever selection it is stuck at. Also, remove the right cover under the seat and make sure the rockshaft control cable is connected and functioning.
 
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wejones
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PostPosted: Tue Dec 05, 2017 5:08 pm    Post subject: Re: rockshaft controls Reply to specific post Reply with quote

CVPost-Cliff Nelson wrote:
(quoted from post at 06:56:19 12/03/17) Assuming this has the hyd levers in the dash, the lh lever is for the remote couplers. 4 positions indicate the control rod has been positioned to allow a float position. From the top position, you have float, raise, neutral, and lower. Depending on the loader valve, it may not do anything in the lower position. Try running a remote cylinder with it before condemning the control valve. RH lever is for 3 point. By your description, it may have been modified with a different stop but should work anyway. L D lever should be by your right heel and could likely be broken off leaving you with whatever selection it is stuck at. Also, remove the right cover under the seat and make sure the rockshaft control cable is connected and functioning.


Is it possible that the tractor was manufactured with out the LD lever. I do not see where one would have been? The left lever on the dash is raise in top position, unknown as it does nothing, full hydro flow, and then lower. What does a float position do? The right lever does raise the rock shaft and allow it to lower.
 
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3020G
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PostPosted: Tue Dec 05, 2017 5:18 pm    Post subject: Re: rockshaft controls Reply to specific post Reply with quote

If I understand right the left lever you speak of has the hoses plumed in backwards if I am remembering right. Towards the hood should lower. All the way to the hood should be float for grading type jobs. Just in the middle should be neutral. Down should be up. As far as I know the 3020 always had the L/D Lever. If your standing on the ground in front of the right hand tire looking at the panel that says 3020 you should be able to look to your left and see the L stamped in the metal beside the seats. A short video uploaded to youtube would be helpful to explain your thoughts here.
 
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