Mower Belt jumping off?

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.

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
User avatar
flyawa
5+ Years
5+ Years
 
Posts: 673
Joined: Wed Jan 02, 2008 12:20 pm
Location: KS, Fort Scott (S.E. Kansas - Home of the people of the south wind; the Kansa)
Zip Code: 66701
Tractors Owned: .
1 1948 Cub
2 1950 Cubs
1 1951 Cub
1 1952 Cubs
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

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.
Andy Wander
UBE, PA
'52 Farmall Cub "Wile E."
'72 Int'l Cub "Bugs Backhoe"
"Men are from Earth; Women are from Earth. Deal with it!" (attributed to George Carlin)
User avatar
awander
5+ Years
5+ Years
 
Posts: 1098
Joined: Sun Oct 09, 2005 9:25 am
Location: PA, Upper Black Eddy
Zip Code: 18972
eBay ID: ohawiseguyeh
Circle of Safety Award
Circle of Safety: Y

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
1975 cub (LouAnn) serial # 245946, 1941 John Deere Model H

Good judgment comes from experience,
and a lot of that comes from bad judgment. Will Rogers
User avatar
Mike in Louisiana
5+ Years
5+ Years
 
Posts: 4236
Joined: Tue Feb 15, 2005 10:10 am
Location: LA, Doyline
Zip Code: 71023
Circle of Safety Award
Circle of Safety: Y

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
Farley
5+ Years
5+ Years
 
Posts: 28
Joined: Tue Jan 31, 2006 12:28 pm
Location: OH, Waverly
Zip Code: 45661

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
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!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23820
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

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.
User avatar
Merlin
CubPro Emeritus
 
Posts: 940
Joined: Mon Feb 03, 2003 8:06 am
Location: Ponchatoula, La.
eBay ID: merlin582

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
User avatar
flyawa
5+ Years
5+ Years
 
Posts: 673
Joined: Wed Jan 02, 2008 12:20 pm
Location: KS, Fort Scott (S.E. Kansas - Home of the people of the south wind; the Kansa)
Zip Code: 66701
Tractors Owned: .
1 1948 Cub
2 1950 Cubs
1 1951 Cub
1 1952 Cubs
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

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
User avatar
flyawa
5+ Years
5+ Years
 
Posts: 673
Joined: Wed Jan 02, 2008 12:20 pm
Location: KS, Fort Scott (S.E. Kansas - Home of the people of the south wind; the Kansa)
Zip Code: 66701
Tractors Owned: .
1 1948 Cub
2 1950 Cubs
1 1951 Cub
1 1952 Cubs
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

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.
SundaySailor
10+ Years
10+ Years
 
Posts: 986
Joined: Mon Jun 28, 2004 1:45 pm
Zip Code: 00000
Tractors Owned: 1950 Cub
2000 Simplicity Landlord DLX
1988 JD 322 Garden Tractor with hydraulic scoop, 54" scrape blade and 48" mower deck, Haban 3 pt hitch sickle bar mower

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!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23820
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
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.
SundaySailor
10+ Years
10+ Years
 
Posts: 986
Joined: Mon Jun 28, 2004 1:45 pm
Zip Code: 00000
Tractors Owned: 1950 Cub
2000 Simplicity Landlord DLX
1988 JD 322 Garden Tractor with hydraulic scoop, 54" scrape blade and 48" mower deck, Haban 3 pt hitch sickle bar mower


Return to Farmall Cub

Who is online

Users browsing this forum: No registered users and 4 guests