LT-166 Drive Belt Replacement
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Thread: LT-166 Drive Belt Replacement

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    LT-166 Drive Belt Replacement

    My drive belt just broke. I remember replacing it a couple years ago. I remember it being a very tough job because I thought I was never going to get the springs back on. I finally did but it was a royal pain in the rear. Is there a special tool that is used for the springs? I definitely don't want to tackle this again without having the proper tools. I called my local John Deere parts guy and he said there is no special tool that they sell. I may just have them do it otherwise. Thanks!

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    RandyM's Avatar
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    BB,

    Are you talking about the deck drive belt or the machine drive belt? If it is the machine I am sorry I can not help you out there. The deck drive reminds me of a Wheel Horse 60" deck I had that was a pistol to pull back the tensioner spring to install its belt. I made a long handle tool to do the job (leverage is everything in a case like this). Unfortunately it is a make your own special tool or have the dealer do it. Sometimes if you talk with the technicians they will give you tips they use. Maybe Kevin will chime in on this once we know what belt it is.

    Oh, and welcome to DT.
    Randy __________________________________________________ ___ Be Safe!

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    Thanks! And thanks for the friendly welcome!! It is the drive belt that has broken. I have replaced both belts previously but I remember this drive belt being a particularly tough job dealing with one spring in particular. Thanks in advance for any responses if there's a "trick of the trade" on how to remove and re-install the spring. If I remember correctly, it was the spring that attaches to the idler pulley that was the toughest part of the job. I think the repair manaul refers to this as the PTO spring. Thanks!!

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    RandyM's Avatar
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    Aaaaahhhhh, here is the parts manual photo of it. You're right looks like a tough one.
    Attached Thumbnails Attached Thumbnails MP23125________UN11JUL00.jpg  
    Randy __________________________________________________ ___ Be Safe!

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    Yep. That's the bugger. Brings back not-so-fond memories of trying to get that spring back on (complicated by not having tractor up on a lift).

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    Uncle Wayne's Avatar
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    Here's the way I do it on my LT 155 which is very similar. Hook one end of the spring, the end closest to the front, in place. Make a loop of twine (baler twine) long enough to attach to the other end of the spring ( point #14 in Randy's photo) and extend the loop out just past the rear of the mower. Lying beside the mower on your side, with the spring in place on one end and the other end of the spring (point #14) hooked to the loop of twine, place your foot in the loop out past the rear of the mower and extend your leg, stretching the spring. Using a screwdriver or some type of pry (leverage) bar, work the end being pulled by the twine into place.

    If you have someone to help you, have them pull on the loop of twine and you can accomplish the same thing but it's usually easier to do by yourself because you can control the tension without having to tell someone else when to pull, when to release a little etc.

    It's much easier to do that explain. It has saved my religion more than once. Good luck.
    Wayne
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    Wow. Ingenuity at its finest!! You don't happen to have a youtube video of this do you? Just kidding. Thanks for the quick response. When I did it before I rigged up a winch and stretched out the spring to where I could get it just at the right position and then would loosen the winch but because I was a one-man operation, it took multiple runs at it before I got it. Your method sounds much better and more controlled.

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    RandyM's Avatar
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    Quote Originally Posted by bboehm View Post
    You don't happen to have a youtube video of this do you?
    Yeah, a video Wayne!
    Randy __________________________________________________ ___ Be Safe!

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    RandyM's Avatar
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    Quote Originally Posted by bboehm View Post
    Yep. That's the bugger. Brings back not-so-fond memories of trying to get that spring back on (complicated by not having tractor up on a lift).

    I hear you, I have spent my fair share of lying on the ground and hard cold concrete doing maintenance and repair work not only on tractors but cars as well. Maybe some day a lift is in your future, they really are quite affordable now.

    Let us know how well Wayne's tip works for you. But, don't throw your back out trying.
    Randy __________________________________________________ ___ Be Safe!

    2009 - 2305 w/62 MMM **** 2008 - 2520 w/72 MMM **** 200CX w/49 bucket
    Weight Box w/extension ***** LandPride RTR 1558 Tiller ******* 54 Snow blower
    60 Gallon Demco Sprayer *** 60 Broom ** BB2060 Box Blade**SS2036B Spreader
    Everything Attachments ETA-PluggerV2-60 Aerator

    The more I learn, the less I know.

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    kjung17's Avatar
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    Mr. Boehm,
    Welcome. Any relation to Roy Boehm, Father of the SEALs? Those springs are frustrating, at times. I am fortunate to be farm raised and beef fed.(just shy of 6 feet, just shy of 300 pounds) I use a vice-grips and brute strength to re-install them. Some of the guys have spring hooks that they prefer. One guy just hollers at me, if I'm in the shop. Even with a lift, the average guy has trouble stretching them back on, safely. I kind of like the twine method, providing you have good twine (I wouldn't use old natural fiber twin as it may pull apart) and can tie a good knot. If there is creative and ingenious way to get this done, these guys will find it.
    Thanks,
    Kevin

    Master Service Technician, John Deere AG, North America
    Advanced Service Technician, John Deere C&CE, North America

    We, the unwilling, led by the unknowing, have done so much, for so long, with so little that we can now do anything with nothing.

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