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  1. #1
    New Member
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    Jan 2012
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    10
    Tractor
    looking for 318

    Default So it begins with my '91 318

    Some of you may have seen my other thread, where I just bought a 91 318. I bought it with the front PTO not working. I figured it was just the switch, then started reading up on it then looked at the wiring diagrams of how it is wired.

    Wow.... its alot more than a simple switch with a light. I'm sure I am not the first nor thelast to have this problem, but I am wondering if you guys know of good places to start, taking the following into consideration.

    Does not engage at any engine speed
    Key on, engine off, I can here clicking when I remove and re install the 2 fuses under the hood, at the dash. (Not the same noise as the hour meter clicking of time)
    Doesnt matter if im in the seat or not
    Dash light does not come on
    the pulley on the PTO is difficult to turn by hand
    Fuses are good

    Is there a better place to start than methodically checking every little part in order? What have you guys seen that would be suspect to cause these symptoms?


    Thanks
    Dave

  2. #2
    Platinum Member glc24's Avatar
    Join Date
    Dec 2009
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    896
    Location
    Southwestern, Pa.

    Default Re: So it begins with my '91 318

    Hello Dave
    Do you know if your seat switch is working. Normally,you have to be sitting in the seat to engage the PTO. You can just jumper the two connections to the seat switch for checking things.
    The air gap for the PTO should be .018" with a feeler gauge. There are three slots around the PTO like the one in the picture. The nut with the spring is what you adjust.There are three of those also. That is saying your PTO is like mine. I'm not sure of the other style,but I would assume they should be the same. As for the clicking.you'll know when the PTO engages. It is a very distinct "clunk" type noise.

    Greg
    Attached Thumbnails Attached Thumbnails -316-pto-gap-jpg  
    2009 2520
    FEL/61" HD bucket/replaceable cutting edge
    62D2 MMM
    IMatch Quick Hitch
    Homemade 3PT Receiver
    Homemade Ballast Box
    Woods GB65 Box Blade
    A "REAL" snow blade --- JD 380A
    90% Restored 1987 JD 316

    MY BALLAST BOX:
    http://www.tractorbynet.com/forums/b...box-build.html
    MY SE SEAT 2520 MOD:
    http://www.tractorbynet.com/forums/j...my-2520-a.html

  3. #3
    New Member
    Join Date
    Jan 2012
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    6
    Tractor
    John Deere 322

    Default

    Yes, test the air gap. Have a 322 and had a 318. Had this happen to me and it was the air gap. That pro is not forgiving when it comes to the gap.

  4. #4
    Member
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    Sep 2011
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    32
    Tractor
    Jd2210

    Default

    I took magnet off and sanded as rust kept it from engaging Was stored inside but used with snow blower and put moisture in pro
    Bones 72:

  5. #5
    Gold Member psdx's Avatar
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    Nov 2006
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    456
    Location
    London, OH
    Tractor
    Kubota B3030

    Default

    Seems like a volt meter and a wiring diagram would be the right way to start. Look for 12v at the clutch then work backward, or look for 12v at the switch and work forward. It's not terribly hard to find these problems, but it can be time consuming to follow the diagram and find all the connections. Some manuals will have another diagram that shows the physical location of the electrical components and connectors along with wire colors, etc.
    Kubota B3030, LA403 FEL, Woods RB72 Back Blade, LandPride GS1560 Grading Scraper, Frontier CA2060E Aerator, Kubota ZD331-72 mower, John Deere x575 & 47" snowblower

  6. #6
    New Member
    Join Date
    Dec 2010
    Posts
    13
    Tractor
    JD 318, MTD 990

    Default Re: So it begins with my '91 318

    Dave,
    The best thing in the world you can do for yourself and your 318 is to buy the service and operator's manual, then perform a thorough cleaning of all electrical connections, following by a full basline maintenance.

    The immediate problem of the PTO clutch does sound like the air gap requires adjustment.

  7. #7
    Silver Member
    Join Date
    Dec 2006
    Posts
    181

    Default Re: So it begins with my '91 318

    Dave, the suggestion to get the factory service manual is right on - it's not cheap, but will save you a lot of time and trouble. It also includes full wiring diagrams.

    Electrical gremlins are common in these older lawn tractors.

    Finally, although I don't know if it's kosher to mention it here, weekendfreedommachines.com is a Deere L&G specific forum where you may also find assistance.

    Tim

  8. #8
    Platinum Member glc24's Avatar
    Join Date
    Dec 2009
    Posts
    896
    Location
    Southwestern, Pa.

    Default Re: So it begins with my '91 318

    You can find out of production tractor tech manuals online for basically nothing.


    Greg
    2009 2520
    FEL/61" HD bucket/replaceable cutting edge
    62D2 MMM
    IMatch Quick Hitch
    Homemade 3PT Receiver
    Homemade Ballast Box
    Woods GB65 Box Blade
    A "REAL" snow blade --- JD 380A
    90% Restored 1987 JD 316

    MY BALLAST BOX:
    http://www.tractorbynet.com/forums/b...box-build.html
    MY SE SEAT 2520 MOD:
    http://www.tractorbynet.com/forums/j...my-2520-a.html

  9. #9
    New Member
    Join Date
    Jun 2011
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    17
    Location
    SW Maine
    Tractor
    1976 Bolens H14, 1970 110H, 1968 112H, 1977 210, 2001 345

    Default Re: So it begins with my '91 318

    Here`e a great $33 dollar investment ($20+$11shipping)
    Click on link below.
    Go to page two. The 318 manual is there.
    Much cheaper than buying a manual through JD.

    John Deere Service Manuals replament for John Deere Tractors
    Last edited by mikgran; 01-30-2012 at 07:04 PM. Reason: did not finish

  10. #10
    New Member
    Join Date
    Dec 2010
    Posts
    13
    Tractor
    JD 318, MTD 990

    Default Re: So it begins with my '91 318

    Quote Originally Posted by mikgran View Post
    Here`e a great $33 dollar investment ($20+$11shipping)
    Click on link below.
    Go to page two. The 318 manual is there.
    Much cheaper than buying a manual through JD.

    John Deere Service Manuals replament for John Deere Tractors
    That's a good link to know about, however, the TM1277 manual they have there will not cover his 1991 318.

    He needs TM1590, which is $45 on CD or $90 printed from JD.

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