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Thread: Sparkologist Fault Finding from afar

  1. #11
    Join Date
    Dec 2006
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    Torres Straits
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    Thanks for all the hints
    I didnt get a good chance to check it over today

    Heading off for a week camping/fishing but when I get back I will take some photos of the housing and keep trying to sort this.

    But quickly Vern, when I press the switch the 24V 'contractor' of both KM1 and KM2 does in deed read 24VAC but no current passes to the motor and no distinct click of the relay is heard????
    Next trick will be to run a jumper from the lighting circuit to the "contractors" and see if that lights em up a little ???

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  2. #12
    Join Date
    May 2006
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    Woolgoolga
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    So you have 240 at each leg on the CONTACTOR, but not getting 24v to the coil. Try running a wire to the coil from a known 24v AC supply and see if the CONTACTOR clicks in, if it does, then trace the control circuit back to the 24v point of supply. Control circuit will be in series, just keep tracing.

  3. #13
    Join Date
    Dec 2006
    Location
    Torres Straits
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    FOLLOWUP

    found the problem and fixed it yesterday
    ended up being pretty simple.
    With a jumper lead as suggested I was able to activate the coil of each 24VAC contractor
    No dramas - so this ruled out the transformer being bunk

    Went and played with the multimeter and found 24VAC and lead 2 but not at lead 3.
    Followed the spaghetti to look for SQ1.

    Now SQ1 is a NC switch located on the outside of the head inside a plastic jigger with broached splines that looks like it should accept an adjustable depth rod or some such..
    At first I thought it may be some depth top but it is not attached to the spindle but to the actual head (ie non moving component) Anyways switch was playing up so with some adjustment it is now closed and all is working. I still dont actually know its purpose in life.

    Thanks for all your help and suggestions

    Steve
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

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