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Gottlieb half moon credit unit

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  • Gottlieb half moon credit unit

    Hi guys I am trying to find a parts breakdown for the above. I have looked in my 1978 parts catalog but can't seem to find anything.
    Has anyone got a drawing with part numbers etc on it?
    One of the big springs on the unit is broken and needs replacing not to mention the whole thing is gummed up.

  • #2
    look again p42 / 43

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    • #3
      Awesome. Thank you Doug I missed that. Appreciate your help.

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      • #4
        what spring do you need mate?
        looking to buy gottlieb electro mechanical pinball machines from any era

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        • #5
          There is the spring on one cog shaft and one spring for each plunger.
          Click image for larger version

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          • #6
            I'll check tomorrow, if I have spares will send them down with your rubbers for pleasure isle
            looking to buy gottlieb electro mechanical pinball machines from any era

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            • #7
              Thanks Tony. I owe you more than a few pale ales now. From what I can see it's complete but one of the 2 top spring clip pieces is broken. I will look at the part number/take photo tonight.

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              • #8
                A-14803 wireform. I need one of if you have. Otherwise I will try to make one. Thanks again for all your help and the bits that are unobtanium.Click image for larger version

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                • #9
                  Very handy info for when I finally get around to overhauling mine .. thanks a lot guys

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                  • #10
                    jesse how long are the springs in the photo on the right and how many windings do they have?
                    looking to buy gottlieb electro mechanical pinball machines from any era

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                    • #11
                      The photos aren't mine. I will measure the cog spring and the coil springs length and windings later tonight and reply.

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                      • #12

                        The spring on the cam is 42mm long and has 7 windings. The springs for the plunger/coils are 38mm long and have 12 windings. I have 3 out of 4 of the spring bolts that hold the unit in position. One of the clips is broken and one of the wire forms has been bent up to suit the damaged clip. Might as well clean everything up while I have it pulled apart.
                        Click image for larger version

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                        • #13
                          I just reassembled the unit and the second wireform clip snapped. This unit is an awful design compared to the standard credit unit.
                          Last edited by kimbleseven; 14th February 2020, 11:43 AM.

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