Discussion in 'UK DIY' started by ollie, Mar 1, 2006.

  1. ollie

    ollie Guest

    Has anyone heard of any problems with the extradig on the back actor on
    the 3CX? I own two newish (2003 & 2004) 3CX's and the loocking pin for
    the extradig (when I'm using a rockbreaker) have worn away and it does
    damage to the pin holes in the extradig and dipper (they wear away very
    quickley on one side). I've had to get the holes dressed by JCB on both
    machines within 18 months of purchase, and I find that very annoying as
    well as expensive.
    The locking pin keeps getting worn away and pops out letting the
    extradig slide out. Is there a design fault with the machine?
    ollie, Mar 1, 2006
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  2. Sorry Ollie, can't help, but I'm posting to ask whether anyone knows of
    another newsgroup for digger problems. I have had replies to them from
    here and from uk.bus.agriculture and, but I
    suspect there might be a better place to ask. Would prefer usenet to
    these endless slow forums.
    Holly, in France, Mar 2, 2006
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  3. ollie

    R obbo Guest

    There's part of the problem,

    have worn away and it does
    Not a design fault, but may be a problem with lack of maintenance on the pin
    lock or an excessively oval hole wear.
    If the extradig is just sliding out I'd be looking for something other than
    the pin lock . IIRC they have a ram inside that extends the box section so
    what is happening there?
    R obbo, Mar 2, 2006
  4. ollie

    ollie Guest

    Thanks for the reply, I didnt know how to describe the hole but you got
    it in one with, excessively oval hole wear. The hole becomes large with
    the weight of the extradig on it.
    To fix it we had to take the entire extradig off, and weld a 20mm (if I
    remember corectly) plate onto the dipper to add beairng area to the
    dipper hole and then slide the extradig back onto the dipper, which is
    a trickey and demanding job.

    On the comment about the rockbreaker, I ues a Montrabert SX125 and
    dealer claim that it is designed for the 3CX. Even though we all know
    breakers shake the life out of any machine, no matter how well they are

    ollie, Mar 3, 2006
  5. ollie


    Sep 17, 2015
    Likes Received:
    i would like to replace my JCB extend hoe WEAR SLIDES FOR EXTENDING DIPPER any videos ?
    kapsia, Sep 17, 2015
  6. ollie


    Feb 10, 2019
    Likes Received:
    Hi guys I own a 3cx project 8 since 3 years,I change the oil fuel and air filter anualy. It's now time to change the hydraulic filter, my old 3c was on the right side of the cab,but I'm not sure about this machine. Is there anyone who has done this.
    Cheers al
    Aly, Feb 10, 2019
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