Quick Disconnect rehab
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Thread: Quick Disconnect rehab

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    Quick Disconnect rehab

    I have an 855 and a couple of the QD's under the left floorpan are leaking. Do the couplers need to be replaced, or, will replacing the O-ring (M122638) and/or back-up ring (M122639), perhaps solve the problem. And if replacing the o-ring and back-up ring, any instructions would be appreciated. There's a huge price difference obviously, as male and female couplers cost roughly $20 and $25 for male and female sides respectively. Thanks for any suggestions.

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    jgayman's Avatar
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    Do they leak when connected or when disconnected?
    flyweight likes this.
    2012 2720 -- 200CX Loader -- 54" Quick Attach Snow Blower -- Frontier LR5060 Rake -- Land Pride RB1660 Blade (Hydraulic Angle) -- Artillian 42" Forks -- Ken's Bolt on Grab Hooks -- Fit Rite Hydraulic top-link -- 2013 X500 for mowing duties

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    flyweight's Avatar
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    The O-rings are fairly easy to replace.

    If you don't already have some, pick up a set of O-ring tools at the hardware, or auto parts store. I think Harbor Freight may has have them.
    Click image for larger version. 

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    Remove the bad O-ring and Back-up rings. Clean the inside of the QD's(I use brake-part cleaner).

    Dry the O-ring/Back-up ring groove(it needs to be dry for the O-ring to stay in place while installing the back-up ring).

    Install the O-ring and push it to the back of the groove using the 90% O-ring tool.

    Install the back-up ring in front of the O-ring, being careful not to damage it.

    Apply a light coat of grease, or Hyd oil before using QD's.
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    Michael

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    flyweight's Avatar
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    Quote Originally Posted by jgayman View Post
    Do they leak when connected or when disconnected?


    Yes. It's possible the Tip itself are bad.
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    In this case, replacement is necessary.
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    Michael

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    Q D rehab

    Quote Originally Posted by jgayman View Post
    Do they leak when connected or when disconnected?
    That's something I'll have to check. I rarely disconnect them, so at this point I only notice the leak while connected. I am in the process of installing a DV from KennyD to operate a grapple attachment that I've added. I figured as long as I'm working on all of this, I might as well fix these leaks. If it's just when connnected, does that mean the o-ring and back-up ring is the more likely culprit?
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    flyweight's Avatar
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    Quote Originally Posted by 52Miner View Post
    That's something I'll have to check. I rarely disconnect them, so at this point I only notice the leak while connected. I am in the process of installing a DV from KennyD to operate a grapple attachment that I've added. I figured as long as I'm working on all of this, I might as well fix these leaks. If it's just when connected, does that mean the o-ring and back-up ring is the more likely culprit?
    I'll have to agree.

    If no leak(on tractor side, with engine running) it may not be the QDs themselves. The O-rings and back-up rings should be replaced.
    BigJim55 likes this.
    Michael

    '84 JD 750
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    jgayman's Avatar
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    Quote Originally Posted by 52Miner View Post
    That's something I'll have to check. I rarely disconnect them, so at this point I only notice the leak while connected. I am in the process of installing a DV from KennyD to operate a grapple attachment that I've added. I figured as long as I'm working on all of this, I might as well fix these leaks. If it's just when connnected, does that mean the o-ring and back-up ring is the more likely culprit?
    A wise man (KennyD) once told me that if they leak while connected it is likely the O-ring and if they leak while disconnected you probably need a new coupler.
    Kennyd, BigJim55 and firemachine69 like this.
    2012 2720 -- 200CX Loader -- 54" Quick Attach Snow Blower -- Frontier LR5060 Rake -- Land Pride RB1660 Blade (Hydraulic Angle) -- Artillian 42" Forks -- Ken's Bolt on Grab Hooks -- Fit Rite Hydraulic top-link -- 2013 X500 for mowing duties

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    Q D rehab

    Quote Originally Posted by jgayman View Post
    A wise man (KennyD) once told me that if they leak while connected it is likely the O-ring and if they leak while disconnected you probably need a new coupler.
    Then I think I need to take the advice offered here by him and all of you wiser persons. Thanks so much everybody.
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    Q D rehab

    Well, it seems that it is a male connector poppet that is leaking. Both when connected and disconnected. Should just this part be replaced, or should the female side be replaced or the o-ring be replaced as well.
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    jgayman's Avatar
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    Quote Originally Posted by 52Miner View Post
    Well, it seems that it is a male connector poppet that is leaking. Both when connected and disconnected. Should just this part be replaced, or should the female side be replaced or the o-ring be replaced as well.
    If it is just the male side that is leaking there is no need to replace the female side.
    BigJim55 and 52Miner like this.
    2012 2720 -- 200CX Loader -- 54" Quick Attach Snow Blower -- Frontier LR5060 Rake -- Land Pride RB1660 Blade (Hydraulic Angle) -- Artillian 42" Forks -- Ken's Bolt on Grab Hooks -- Fit Rite Hydraulic top-link -- 2013 X500 for mowing duties

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