Breakaway Coupler repair question on a 4430
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Thread: Breakaway Coupler repair question on a 4430

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    Breakaway Coupler repair question on a 4430

    I broke the hydraulic locking lever on our 4430. (The lever that locks the hydraulic hose into the servo). Have the part ordered but in the parts manual it shows the housing having an access from the top and ours is solid. I haven't been able to get the top half of the lever out. ours is an earlier model so I'm imagining the break down in the manual is of a later model? Does anyone have any experience and help to offer?
    Last edited by IndianaAg; 06-14-2017 at 02:29 PM.

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    I've never seen a factory breakaway coupler on a 4430 that didn't have a expansion plug(key 8) that one could drive a center punch into to remove to expose end of shaft to remove circlip. I not only sold ""new 4430's"" but served as a JD dealer service manager for over 13 yrs. Can you post a photo of your breakaway coupler?
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    flyweight's Avatar
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    Michael

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    flyweight's Avatar
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    As TxJim stated, use a center-punch to remove the expansion plug(26). Punch a hole, slightly off-center of the expansion plug. You will then gain access to the E-clip(25) and spring(24) that retain the lever(29). You will have to install a new expansion plug after lever replacement.

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    Last edited by flyweight; 06-15-2017 at 09:40 AM. Reason: none of your business!!
    Michael

    2019 JD Z540R, 54" cutting deck w/MulchControl™
    1984 JD 750 Tractor
    1971 JD 15 Chainsaw, ← hasn't run since ~1975

    Also have a bunch of other useless stuff.










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    Found it.

    There was so much dust and dirt on top I couldn't see the hole. The only problem I had was getting the e-clip back on.

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    johnH123's Avatar
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    Quote Originally Posted by IndianaAg View Post
    The only problem I had was getting the e-clip back on.
    Those things are a b*****h to get on and off....
    - 2002 John Deere 4510 TLB PR,
    -Woods BB60X 60" rotary cutter
    -Countyline box blade,
    -Allis Chalmers sickle mower,
    -RED windrow rake,
    -titan 48" 3000 pound forks/bale spear
    - Farm Star rear bale spear

    Yamaha Rhino 700, Yamaha Rhino 660,
    Murray 624 mower/38" deck

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    flyweight's Avatar
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    Quote Originally Posted by IndianaAg View Post
    There was so much dust and dirt on top I couldn't see the hole. The only problem I had was getting the e-clip back on.
    Quote Originally Posted by johnH123 View Post
    Those things are a b*****h to get on and off....
    Before they came out with the E-clip installation tool with the bent end, I bent one of mine.


    Michael

    2019 JD Z540R, 54" cutting deck w/MulchControl™
    1984 JD 750 Tractor
    1971 JD 15 Chainsaw, ← hasn't run since ~1975

    Also have a bunch of other useless stuff.










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    Quote Originally Posted by johnh123 View Post
    those things are a b*****h to get on and off....
    ditto

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