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Thread: Jcb 8014

  1. #21
    Fabrication Guru +1 v8druid's Avatar
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    Quote Originally Posted by Daveindevon View Post
    I have read over the original ad. and I must have confused it with another advert. as this one doesn’t actually say “no leaks” so I probably couldn’t get him on an inaccurate description. I may have a case under “not fit for purpose “.

    I purchased from “Warwick Plant” in Maidenhead. He has said he’ll help me if he can.

    Maybe I’ll just try to seal/fix the leak as it doesn’t seem to be under any pressure YET!

    Dave

    - - - Updated - - -



    Thank you. I’m going to try to seal it with some epoxy resin.

    Dave
    That's a problem when searching dozens of ad.s .... remembering what says what

    an accumulator is a 'pressure reservoir' and smooths out pressure variations to maintain even pressure ... it won't be under pressure with the machine not running and the system pressure exhausted/relieved .....

    most likely your servo accumulator to allow a few lever movements/actuations, after the engine ceases to pump when turned off .... allows you to operate say the main boom circuit to lower the boom in the event of engine failure ...

    you can exhaust the accumulator pressure by operating the sticks' various motions, after the engine is stopped and can probably hear the pressure drop away in the circuit as you operate the levers ... you'll eventually end up with no movements, etc. once all pressure has been relieved/exhausted.

    Unusual to get a crimp leak like that and you'll be very lucky to seal it externally .... try pricing one up before going to the bother of trying to 'repair' it and see if said dealer will contribute to, or even pay the cost of the replacement

    this is one of the accumulators off mine on the travel range valve ..... not a crimped type ... has a one piece bladder inside it like a tough balloon

    Attachment 4352

    the crimped style are much like the pressure vessel in a sealed central heating system ... allows the system contents to expand, whilst maintaining a constant pressure in the system when cold - usually 1.5 BAR


    http://www.hedmandrilling.com/wp-con...Tank-Types.png


    hydraulic bladder type
    https://cdn.app.compendium.com/uploa...og_figured.jpg


    diaphragm type
    http://www.valvehydraulic.info/wp-co...ccumulator.JPG


    all three types
    https://i.ytimg.com/vi/uMFVUukXfQA/hqdefault.jpg


    MUZ ..... this new green padlock is a PITFA for linking ..... won't show pix at all
    If it's got tracks, wheels, t*ts, or an engine, at some point it's gonna give you trouble!!

  2. #22
    Thank you for your detailed response.

    Dave

  3. #23
    Admin Muz's Avatar
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    Quote Originally Posted by v8druid View Post
    MUZ ..... this new green padlock is a PITFA for linking ..... won't show pix at all
    So I see
    Please don't PM me for plant advice.. thanks .. Post in the forum where I will gladly help, as will many of our contributors.. as the info and responses will help everyone else, which is why we exist

  4. #24
    Fabrication Guru +1 v8druid's Avatar
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    now struggling to reply to your post above ??
    emojis freezes it completely ??

    I put the links straight in .... showed in preview, but had to come back in on edit, when they didn't show other than a black box, remove the Pix from the insert links tab and just put the page header in for each ... least the OP could then see the pix

    no emojis .... daren't freeze this again ... 5th attempt
    If it's got tracks, wheels, t*ts, or an engine, at some point it's gonna give you trouble!!

  5. #25
    Admin Muz's Avatar
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    Ive disabled an https plugin .. think it was slowing things down.. I did a test post in the test area and all links and pics rendered ok before doing this ?
    Please don't PM me for plant advice.. thanks .. Post in the forum where I will gladly help, as will many of our contributors.. as the info and responses will help everyone else, which is why we exist

  6. #26
    Fabrication Guru +1 v8druid's Avatar
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    Quote Originally Posted by Muz View Post
    Ive disabled an https plugin .. think it was slowing things down.. I did a test post in the test area and all links and pics rendered ok before doing this ?
    Tha's better boyo ..... not tried pix yet though

    was it this sort of pump on there originally OP

    If it's got tracks, wheels, t*ts, or an engine, at some point it's gonna give you trouble!!

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