Sealey 185 advice wanted

  1. tel76 Member

    Messages:
    34
    Isle of Man
    After being away from MIG welding for a few years I have purchased a new Sealey 185.
    I have set the unit up as per the operating instructions, using Argon mix and I have the following problem -
    With a good earth made I press the trigger and as the wire touches the item being welded (car body) the wire splatters, if you immediately release the trigger and start again the weld is satisfactory.
    This happens every time you initially press the trigger but on the second press everything works perfectly.
    It is worth noting that the original splatter looks like the mess you get when you try to weld without the gas switched on.
    What am I doing wrong.
     
  2. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Sounds like gas is leaking from the torch when you stop, so that on restarting you get the problem but the torch has filled with gas so on the 2nd go the torch is already full and gas comes out of the nozzle.

    Does your machine have a gas solenoid or a valve block in the torch?
     
  3. tel76 Member

    Messages:
    34
    Isle of Man
    How can I check if it has a gas solenoid or a valve block in the torch.
     
  4. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Unplug it from the mains, open the valve on the gas bottle and squeeze the trigger, if you get gas out of the nozzle you've got a valve block in the torch.

    If there's a slight amount of gas coming out without the trigger being pulled then you've got a leaky valve, so look for a marked increase in flow during the above test
     
  5. tel76 Member

    Messages:
    34
    Isle of Man
    PDJ, I have not tried, but I will tomorrow and report back, I will also conduct RTDCOMP test
     
  6. tel76 Member

    Messages:
    34
    Isle of Man
    In answer to the queries =
    rbtcomp - NO gas comes out when carrying out your test.
    pdg - the weld does clear if you keep going.
    From what pdg indicates it looks like this is normal and I will have to live with it.
    Thank you for your help.
     
  7. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Thanks for letting us know. It still looks like there's a leak after the solenoid though.

    Apply some leak detection fluid to the pipe from the solenoid to the torch, disable the wire feed, press the shroud into some rubber &c (to stop gas coming out) and pull the trigger and look for bubbles at various points after the solenoid up to the torch.
     
    pdg likes this.
  8. north Member

    Messages:
    35
    Location:
    Sweden
    No no no. Something is wrong :fish::fish: Who Thinks big welding companies sell welders that do or makes birdpoop :worms Something wrong with delivery of protecting gas i suppose :waving:
     
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