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Repair of 4020 remote


 
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rogerevilone
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Joined: 19 Jun 2010
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PostPosted: Fri Jul 02, 2010 7:14 pm    Post subject: Repair of 4020 remote Reply to specific post Reply with quote

The socket outlet on the hydralic remote breakaway is broken on my 4020. How is the remote disassembled?
 
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Bob Baumgras
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PostPosted: Fri Jul 02, 2010 8:01 pm    Post subject: Re: Repair of 4020 remote Reply to specific post Reply with quote

If it's an early or late model the coupler is removed the same. Once the coupler unit is off the tractor you will need to punch the top cap in the center, denting it down. Once you pry the cap out you will see a snap ring holding the coupler lever in place. Pull the snap ring and small spring off and push the lever out. Don't worry about the main ball it will stay in place. Then remove the outer big snap ring on the outer end of the coupler housing "it's an inside snap ring". Watch the small balls on the outer end of the coupler, they will fall out once the coupler is removed from the housing. Tap the coupler out of the housing from the back side and you have it in your hand. When you buy a rebuild coupler kit you will get a new cap, "O" rings, backup rings etc.
 
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rogerevilone
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PostPosted: Sat Jul 03, 2010 2:47 am    Post subject: Re: Repair of 4020 remote Reply to specific post Reply with quote

Bob,
Thanks a lot.
Roger
 
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rick67
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PostPosted: Wed Dec 28, 2011 8:55 am    Post subject: Re: Repair of 4020 remote Reply to specific post Reply with quote

Bob Baumgras wrote:
(quoted from post at 05:01:29 07/03/10) If it's an early or late model the coupler is removed the same. Once the coupler unit is off the tractor you will need to punch the top cap in the center, denting it down. Once you pry the cap out you will see a snap ring holding the coupler lever in place. Pull the snap ring and small spring off and push the lever out. Don't worry about the main ball it will stay in place. Then remove the outer big snap ring on the outer end of the coupler housing "it's an inside snap ring". Watch the small balls on the outer end of the coupler, they will fall out once the coupler is removed from the housing. Tap the coupler out of the housing from the back side and you have it in your hand. When you buy a rebuild coupler kit you will get a new cap, "O" rings, backup rings etc.


I was reading your post about the repair of a breakaway coupler on a 4020. Is it necessary to remove the unit from the tractor to perform this rebuild? I don't have leaks, but the male tips will not stay in the coupler. Could there be something else at fault not covered in the rebuild kit? I have a 1967 4020. Will the kit come with old style o rings and back up rings or the newer seal design? How deep do you need to dent the top plugs? They have small dents in them now. Will a ton of fluid come out if I leave this on the tractor when rebuilding?
 
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Tx Jim
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Location: Coyote Flats,Tx

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PostPosted: Wed Dec 28, 2011 9:14 am    Post subject: Re: Repair of 4020 remote Reply to specific post Reply with quote

rick67
Look under the breakaway coupler for the metal strip that was intended to hold the chains for the original dust caps. This metal strip has a tab(parts item # 33) that you can bend down just a little to help hold lever in the pointing out position(oil turned on). This helps keep male tips plugged in when hyd pressure is activated. [/img]
 


Last edited by Tx Jim on Wed Dec 28, 2011 9:25 am; edited 1 time in total
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