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G-250 Throttle Soliniod

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  • G-250 Throttle Soliniod

    I have aquired a G-250 was able to free brushes up replace reostat thanks to old fart and get motor running work a grinder and best of all strike an arch. The Throttle soliniod is no good and I do not know what kind of voltage goes to the soliniod. Could anyone tell me if there is a replacement and what the voltage is, was the soliniod normally open or closed?

    Thanks Albert

  • #2
    I have aquired a G-250 was able to free brushes up replace reostat thanks to old fart and get motor running work a grinder and best of all strike an arch. The Throttle soliniod is no good and I do not know what kind of voltage goes to the soliniod. Could anyone tell me if there is a replacement and what the voltage is, was the soliniod normally open or closed?

    Thanks Albert

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    • #3
      What is the SPEC# of the G-250? Some of these older units used vacuum idle systems. Once I see the SPEC# I should know what you have.

      Keith

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      • #4
        G-250 spec. #

        Originally posted by Hobart Expert Keith View Post
        What is the SPEC# of the G-250? Some of these older units used vacuum idle systems. Once I see the SPEC# I should know what you have.

        Keith
        The spec. # you requested is 4940

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        • #5
          This idle system was a vacuum device. The coil used to activate the Hobart Brothers built solenoid designed to take the voltage drop created by the weld coils in the generator to energize( 2-4Vdc) There are no retro kits that I am aware of or parts to fix this idle system. This was part of Hobart Brothers that was sold before ITW purchased the company in 1998.

          Keith

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          • #6
            g-250

            When you say 2-4dcv does this mean when I start to weld I should read 2 to 4 dc volts across the two wires going to the solinoid?

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            • #7
              Yes. That voltage will vary with relation to the amount of load on the weld output.

              Keith

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