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No power to ignition switch ??

Forum Forums Tractor Troubleshooting No power to ignition switch ??

This topic contains 8 replies, has 7 voices, and was last updated by  DavidIAM 4 months, 2 weeks ago.

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  • #30643

    donaldl
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    Hi Members'I have lost power to the ignition switch on my Farm-pro 254 Jinma.I have 12 volts to the 30 amp main fuse but the green wire of that circuit downstream of it is 0 volts..That downstream greenwire gets buried in the wiring loom.

    Does anyone know of any available schematics for a fee or free for this model?

    The wiring has little plastic number tags.Are the lower numbers(1, 2, 3, ect.) that are tagged to the larger sized wiring possibly primary circuits while the secondary wiring is labeled with higher numbers?

                                                                Thanks,Don L

  • #35031

    Affordable
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    Look up Johnstractor.com, he has a wiring diagram on there.The 12V power goes from the battery to the starter, the starter to the fuse panel, fuse panel to the key switch.Check your fuses and fuse box good

     

    Tommy

    Affordable Tractor Sales

    “Your Jinma Parts Superstore”

    http://www.affordabletractorsalesco.com

  • #35028

    SpringValley
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    You didn't say what year the tractor was so I am shooting a bit in the dark.  Standing on the right side of the tractor next to the starter with the hood open you should see a large connector in the main harness. This feed everything in the dash area. Unplug that and look for a 10 gauge wire that may have gotten hot.  On the later models the wire was white. You might find that the connector no longer makes contact on that wire.  That will kill all power to the key switch.  I have seen this many times on Jinma tractors.  

  • #35032
    ronjin
    ronjin
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    Don,

    These are the wires on my 284.  Perhaps this will help you.

    RonJ

    http://i289.photobucket.com/albums/ll212/ronj2000/WireNumbers-Colors-Functions.jpg

    ronjin

  • #35036

    donaldl
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    Thanks members,These are all great links and important pieces of info.Will let you know what I find.Don L.

  • #35040
    Bob Rooks
    Bob Rooks
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    FYI Don,

    “Secondary wiring” and “ignition switch” are both terms used in spark ignition engines where secondary wiring refers to the high voltage spark plug wiring, and ignition switch refers to the primary side of the ignition circuit. These are simply and generically called key switches. It helps to eliminate confusion where diesel engines are concerned.

    wink

    Yuchai dozer, Mustang skid steer, Mitsubishi mini-ex, Dual Dozer w/twin laser receivers, '50 Ford COE transit mixer.

  • #35041

    donaldl
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    I found the problem.Twelve volts going into the 30 amp fuse,and zero exiting.The crimped wiring that holds that 30 amp fuse had loosened and was not making contact.I simply leveraged the fittings more closely so that portion of the fuse made contact.

       Because of everyone's help I fixed my problem plus accumulated some valuable electrical data.Thanks again,Don L.

  • #35044
    Tinbender
    Tinbender
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    Thanks for the info. I hate when a thread just disappears never knowing what happened.hmmm And happy endings are always good too.laugh

  • #47122

    DavidIAM
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    OK It’s 5 years later, and this thread was a resource to me.

    Thanks! :good:

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