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  1. #1
    New Member
    Join Date
    Jul 2011
    Posts
    2
    Tractor
    John Deere LX173

    Default John Deere LX173 Won't Crank Blows Fuses

    I have a John Deere LX173 that blows the fuses and won't crank . I put a used ignition switch on it after the old one started smoking . It looks like it burnt up a resistor or something on the old switch . Occasionally it will start with the key , but the last time I had it running I had to turn the key on and jump the starter solonoid . It has two 15 amp fuses on the ignition switch curcuit board , but I can't find what the fuses protect . Could I have a bad neutral safety switch ? I also changed the starter and this didn't help .

    I figured it out . PTO SWITCH WAS BAD !!!
    Last edited by Seabeeman01; 07-10-2011 at 08:19 PM.

  2. #2
    Silver Member
    Join Date
    Jun 2008
    Posts
    129
    Location
    Northern Virginia
    Tractor
    John Deere 2720, John Deere GT225

    Default Re: John Deere LX173 Won't Crank Blows Fuses

    Good job. How did you figure out the pto switch was the problem?

  3. #3
    New Member
    Join Date
    Jul 2011
    Posts
    2
    Tractor
    John Deere LX173

    Default Re: John Deere LX173 Won't Crank Blows Fuses

    The wiring diagram showed the power routed through the PTO switch , so I had a spare and installed it to see what happened . Starts right up now . I knew something had to be bad , either the neutral safety switch , seat switch wiring or what ever was fused in those 2 fuses in the ignition switch . Bypassing the seat and neutral switch didn't do it , so I went to the PTO switch .
    It's interesting that even in the service manual , Deere doesn't state specifically what the fuses go to or what they protect without reading the wiring scematic .

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