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  1. #11
    Super Member
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    Shingle Springs California
    Tractor
    New Holland TC40D

    Default Re: temporary relay defeat

    My owner manual does not ID the relays. From the schematic, I am pretty sure the gray relays are not the timer; they appear to be Neutral start, PTO safety start, ect. The yellow one appears to be for the turn signals.

    I'm guessing it is one of those at the bottom of the picture. One is partially obscured by the wire harness.
    Attached Thumbnails Attached Thumbnails -dscn0837-jpg  
    RobertN in Shingle Springs Calif

  2. #12
    Epic Contributor jinman's Avatar
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    Feb 2001
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    21,011
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    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: temporary relay defeat

    It's the blue topped one in the lower left of your picture that says "NGK Lamp Timer." Look closely and you'll see it has a special New Holland part number. Don't even bother trying to find a replacement. It probably exists, but is hidden in secrecy so you are stuck paying "full fare."

    BTW: Is that good high quality organic dirt from California?
    Jim


  3. #13
    Super Member
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    New Holland TC40D

    Default Re: temporary relay defeat

    Yup, that there is the finest in foothill Auburn/Gabro soil sample collections

    Online the timer is $67. I'll have my local guy order it(probably same price, but has been real good to deal with on the old Farmall I used to have, and my old kubota).

    Quote Originally Posted by jinman View Post
    It's the blue topped one in the lower left of your picture that says "NGK Lamp Timer."

    BTW: Is that good high quality organic dirt from California?
    RobertN in Shingle Springs Calif

  4. #14
    Epic Contributor jinman's Avatar
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    Texas - Wise County - Sunset
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    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: temporary relay defeat

    Robert, I looked at the circuit and there is a simple jumper you can do to get the tractor started if you want. The glow plug TIMER just supplies a ground to the coil of the glow plug POWER relay. With the plug removed from the TIMER, jumper pin 3 to pin 6 in the plug and you'll get glow plugs ON. Hold this for 5 or 6 seconds, remove jumper, and then quickly hit the ignition switch and I'll bet it will fire right off. This is a low current circuit, so a tiny little jumper wire will work fine.

    Edit: If you look into the back of the plug, pins 3 and 6 are the pins where the black and brown wires attach. The orange and white wires are power to the timer.
    Jim


  5. #15
    Super Member
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    Apr 2000
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    New Holland TC40D

    Default Re: temporary relay defeat

    I ordered the timer...
    RobertN in Shingle Springs Calif

  6. #16
    Silver Member
    Join Date
    May 2004
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    239
    Location
    SW Indiana

    Default Re: temporary relay defeat

    Quote Originally Posted by jinman View Post
    Robert, I looked at the circuit and there is a simple jumper you can do to get the tractor started if you want. The glow plug TIMER just supplies a ground to the coil of the glow plug POWER relay. With the plug removed from the TIMER, jumper pin 3 to pin 6 in the plug and you'll get glow plugs ON. Hold this for 5 or 6 seconds, remove jumper, and then quickly hit the ignition switch and I'll bet it will fire right off. This is a low current circuit, so a tiny little jumper wire will work fine.

    Edit: If you look into the back of the plug, pins 3 and 6 are the pins where the black and brown wires attach. The orange and white wires are power to the timer.
    This is handy to know. I've replaced this timer once. The next time I'm installing a puch button which will make me the timer. Now I know how to connect it.
    TC 40D 17LA loader

  7. #17
    Epic Contributor jinman's Avatar
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    Feb 2001
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    Texas - Wise County - Sunset
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    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: temporary relay defeat

    Quote Originally Posted by AndyG View Post
    This is handy to know. I've replaced this timer once. The next time I'm installing a puch button which will make me the timer. Now I know how to connect it.
    Me too! Fool me once, shame on you. Fool me twice. . .ain't gonna happen.
    Jim


  8. #18
    Super Member
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    New Holland TC40D

    Default Re: temporary relay defeat

    I got the timer at lunch. Busy till tomorow...
    RobertN in Shingle Springs Calif

  9. #19
    Epic Contributor jinman's Avatar
    Join Date
    Feb 2001
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    Texas - Wise County - Sunset
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    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: temporary relay defeat

    You know, Robert, if you drag this out long enough, it'll be summer and you won't need the darn glowplugs.
    Jim


  10. #20
    Super Member
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    New Holland TC40D

    Default Re: temporary relay defeat

    This afternoon. It is out of the 20's, and at 55 yesterday; sure it would have started. But, it woulda started rough. I don't think the timer has worked since I got this thing last year(Super Bowl Sunday...). It'll be for the best

    Now off to shop and stuff for wife's bday... priorities...

    Quote Originally Posted by jinman View Post
    You know, Robert, if you drag this out long enough, it'll be summer and you won't need the darn glowplugs.
    RobertN in Shingle Springs Calif

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