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Mower Belt jumping off?

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flyawa
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Mower Belt jumping off?

Postby flyawa » Thu Jun 12, 2008 11:11 pm

Need the advice of a cub mower expert.

I've got a woods 59 ( I think) It has been mowing very well up till the last 20 minutes of the last time I used it. It began throwing off the belt in about 10 feet of mowing. Put it back on and it just throws it off again. I can't see that anything has changed as to pulley alignment etc. Tensions seem about right. It is just the long drive belt. The two short belts function as normal.

Gurus - what gives?

Thanks in advance.

Dave
"Maintain thine airspeed lest the Earth rise up and smite thee"
From: Ten Endearing Rules of Aviation

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awander
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Re: Mower Belt jumping off?

Postby awander » Fri Jun 13, 2008 6:49 am

My Woods 59 has only one, very long, belt. SO I'm not usre if you have another variation of the Woods 59, or if you have another beast entirely.

Sometimes when a bearing fails it will allow a pulley to move sideways, and still hold it all together and let it look as if nothing changed.

Also, the right angle pulleys on my 59 can slide in their slots a little if they are notreally tight.
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Mike in Louisiana
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Re: Mower Belt jumping off?

Postby Mike in Louisiana » Fri Jun 13, 2008 7:13 am

Dave,

If every thing is lined up correctly, the CORD in the blet is
probably broken and it will not syay on.

Mike
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Farley
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Re: Mower Belt jumping off?

Postby Farley » Fri Jun 13, 2008 7:16 am

I had the same problem, flyawa, with the belt jumping off with nothing else being changed. I spoke with Ken at C&G and he suggested that a new belt would probably fix the problem. He was correct! I ordered a new belt and sure enough it fixed the belt jumping off problem. I think the cords internal to the belt either break or stretch and allow the belt to jump off. The belt and pulleys all looked fine even though it started jumping off.

Thanks.
Farley

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Re: Mower Belt jumping off?

Postby Bigdog » Fri Jun 13, 2008 8:34 am

The guys have steered you right. The belt has internal cords for strength just like a tire. When a belt gets thrown off a pulley the cords stretch, often to the point of breaking as the belt rides over the lip of the pulley. Once that happens the belt will no longer track true. Just like a tire with broken cords. It is not always visible to the eye but the belt is ruined. That is why when a belt comes off, you should loosen the idlers, place the belt on the pulleys and then tighten the idlers. Never run the belt up over the lip of the pulley when installing a new belt.
Bigdog
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Re: Mower Belt jumping off?

Postby Merlin » Fri Jun 13, 2008 2:06 pm

All of this is the very best advice there is. Just buy a new belt and I think your problem will be solved. In a pinch with just a very small amount to cut, I have raised the mower as high as it will go and put the belt on and when you let it down it will tighten the belt. But this is not to be construed as the all time fix, because it isn't.

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flyawa
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Location: KS, Fort Scott (S.E. Kansas - Home of the people of the south wind; the Kansa)

Re: Mower Belt jumping off?

Postby flyawa » Fri Jun 13, 2008 9:24 pm

Thanks guys,

As usual you come through for us all.

After reading the replies I went and examined the belt more carefully after taking it off. It is indeed twisted in a way that would indicate an internal failure of some sort.

I'll get a new one and will let you know if it did the trick.

Thanks again.


Dave
"Maintain thine airspeed lest the Earth rise up and smite thee"

From: Ten Endearing Rules of Aviation

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flyawa
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Posts: 676
Joined: Wed Jan 02, 2008 12:20 pm
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Tractors Owned: .
1 1948 Cub
2 1950 Cubs
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1942 Farmall H
1939 Ford 9N
1930 John Deere D
1941 John Deere B
1948 Allis Chalmers C
1956 Farmall 400
1945 Chrysler Airport Tug
Location: KS, Fort Scott (S.E. Kansas - Home of the people of the south wind; the Kansa)

Re: Mower Belt jumping off?

Postby flyawa » Wed Jun 18, 2008 11:05 pm

Got the new belt on.

no more jumping off the pulleys.

Yipee!!

:{_}:


Thanks, guys.

Dave
"Maintain thine airspeed lest the Earth rise up and smite thee"

From: Ten Endearing Rules of Aviation

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Re: Mower Belt jumping off?

Postby SundaySailor » Thu Jun 19, 2008 8:22 am

I've always heard that when a mower belt - (drive belt for the tranny, actual mower belt no matter what brand of mower it is), once it jumps there is very little chance it can be reused. This certainly isn't etched into stone by any means. I purchased a mower drive belt for my Simplicity garden tractor, and it was defective right out of the box! It almost drove me crazy until I purchased yet another belt, and the problems went away. My thinking is that either the other belt was defective from the factory, or it had been put on another mower and caused problems there too and was resold as "new" to me. Pfffffffttttttt! :mrgreen: :censored: I certainly learned a lesson though. If it looks old off the shelf, question it right up front. :shock:
Though trillions and trillions of eyes have been watching the skies for as long as human memory exists, no gods nor angels have been seen or documented outside of religion. The number of spaceships being sighted however has become much more prevalent.

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Re: Mower Belt jumping off?

Postby Bigdog » Thu Jun 19, 2008 8:26 am

Also, sometimes, on a rare occasion, I have been able to turn a belt over and run it the opposite direction and it would run for a significant while longer.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

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SundaySailor
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Tractors Owned: 1950 Cub
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1988 JD 322 Garden Tractor with hydraulic scoop, 54" scrape blade and 48" mower deck, Haban 3 pt hitch sickle bar mower

2014 LS XR3032H w/ FEL and BH
Circle of Safety: Y

Re: Mower Belt jumping off?

Postby SundaySailor » Thu Jun 19, 2008 8:31 am

Bigdog: That is good to know. Appreciate you pointing that out.
Though trillions and trillions of eyes have been watching the skies for as long as human memory exists, no gods nor angels have been seen or documented outside of religion. The number of spaceships being sighted however has become much more prevalent.


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