Strange problem with my JD 170
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    Strange problem with my JD 170

    Hello,
    I have a strange problem. My JD 170 Lawn Tractor quit moving. Naturally I thought it was the transmission. It is a Peerless transmission. So I removed the transmission and didn't even have to open it. Everything worked!??? So I put the transmission back on my jacked up tractor. I tested it without the wheels on and all seemed normal. Then I put the left wheel on, the one with the axle key. I started the tractor. The wheel and axle were free wheeling in any gear. The problem was back. I tried the other axle with the same result. Wheel off, all is normal. Wheel on with the key in place.... the axle is free wheeling. Any ideas?

    Mac

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    flyweight's Avatar
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    Quote Originally Posted by jwmcumber View Post
    Hello,
    I have a strange problem. My JD 170 Lawn Tractor quit moving. Naturally I thought it was the transmission. It is a Peerless transmission. So I removed the transmission and didn't even have to open it. Everything worked!??? So I put the transmission back on my jacked up tractor. I tested it without the wheels on and all seemed normal. Then I put the left wheel on, the one with the axle key. I started the tractor. The wheel and axle were free wheeling in any gear. The problem was back. I tried the other axle with the same result. Wheel off, all is normal. Wheel on with the key in place.... the axle is free wheeling. Any ideas?

    Mac
    While on the jack(wheels removed).
    Rotate one axle by hand in one direction.
    The other axle should rotate in the opposite direction.

    If that works, apply resistance to try and stop the rotation with the other hand.

    If the other axle does not rotate, there is a problem in the differential.

    Possibly a damaged bevel gear, or axle splines. See photo below.

    Attached Thumbnails Attached Thumbnails MP5012_________UN01JAN94.gif  
    Michael

    2019 JD Z540R 54" cutting deck w/MulchControl™
    1984 JD 750
    1971 JD 15 Chainsaw ← hasn't run since ~1975

    Also have a bunch of other stuff.
    ---------------------------------------

    " If there's no one around to smell me, do I really stink"? - John Wells - Brewster County, West Texas.









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