Question about Cub Cadet Street Sign- tractor lawn riding mower parts

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Cub Cadet mowing drive belt often breaks or jumps the pulley

C.C. Mod. 2550 made in 2005. The dealer has fixed or replaced the belt many times but can't truly fix the problem. These are newly installed belts. Are you hearing about this problem from other people ?

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Check the transaxle upper mount. on mine the two bolts that keep the pulley in line stripped out allowing the axle to pivot forward slightly making the belt seem too long and the tentioner can;t take up all the slack. In addition, this miss- alligns the pully that drives the transaxle, causing repeated belt issues.

Posted on Nov 17, 2011

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Have your engine idled up at least 3/4 of the way when you turn your mower on. This will fix the problem of your belt jumping off or breaking. I have been there and done that!

Posted on Aug 27, 2009

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Sounds like possibly burrs on pully, or pully depth is incorrect, causing belt to jump.

Posted on Jul 02, 2009

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1 Answer

Why does the deck drive belt on a cub cadet 2042 keep coming off and or breaking every time you try mowing the yard ?


My first guess is the belt is not properly routed through all the pulleys and past the belt keepers. Please check everything twice against the belt diagram in your operator's manual.

Mar 02, 2017 | Cub Cadet Garden

1 Answer

I need a schematic for installing a cub cadet LT1050 drive belt. The old belt broke and I'm just not sure how to replace it. It appears you need to remove the clutch for the mower blade firat.


To replace a transmission drive belt on a Cub Cadet LT1045 or LT 1050 you need to remove the deck, preferably put the front wheels up on blocks or stands, unplug the PTO power (directly under the engine, which can be a pain ), use an impact wrench (you need the speed of the impact wrench because the engine will turn) and a 5/8" socket and reverse the bolt out of the PTO.

The PTO may be sized on there so you may want to tap it with a hammer and a block of wood carefully to release it. AT this point remove the 4 engine mount bolts from underneath (1/2" I believe). You will need to remove the left steering nut and arm to have access to the 4th bolt. Do not remove or replace engine mount bolts with impact wrench or bolts may break. Loosen old belt from tensioner pulley. Place pry bar under engine to slightly lift engine and move aft to expose belt from pulley and remove from pulley. Remove old belt from engine pulley first, transmission pulley last. Remember how belt goes around pulleys before doing so, draw a map if needed.

You'll need to put the belt on the transmission pulley first then thread the belt up to the engine pulley. Carefully push engine back into place and exhaust pipes into forward muffler will take some patience. Bolt engine back on being careful not to over tighten bolts. Place steering arm and nut back in place. Thread your belt back through the pulleys and tensioner (make sure your spring is strong enough to tension the belt or buy a new one).

The PTO is "keyed" on the shaft. Replace bolt and washer. Put your deck back on and you're ready to mow again. Give yourself an hour for this one.

Aug 16, 2014 | Cub Cadet Garden

1 Answer

Cub cadet belt keeps coming off the deck


Link to see video of the Fix for cubcadet deck belt coming off can be viewed here: http://www.youtube.com/watch?v=Pd4nYovcnvY

Apr 21, 2012 | Cub Cadet Garden

1 Answer

Was mowing-blades just quit turning-pto will not engage


Belt has broken, or jumped off the pulley, or jumped off the belt tensioner. Look at your deck and go from there. You may have to remove your deck to get to the belts under there cvers but you will see your problem.

Jul 03, 2011 | Cub Cadet Lawn Mower Blade Drive Belt CUB...

1 Answer

I have a cub cadet LT1042 and it is 3 years old...we have replaced the pto 2 times and replaced the belt 7 times what is the deal


You have to have something rubbing under there that isn't supposed to be, crawl under the tractor and watch the belt go around by hand, if you can turn it. Maybe see what is frozen up, in the wrong place, Gotta be a belt guide is rubbing or a pulley is not spinning. The PTO should last 20 years, all i can think is they got it too tight to start, .010" min, that is tight, and you must be in Florida picking up a lot of sand? If it was under any kind of warranty, I would raise a big stink about it. Those PTO's are not cheap. And the belt has got to be $20. I wouldn't go to a dealer for the belt, unless it is really special, just match it up at the auto parts store, for half the price of dealer. Hope this helps.

Jun 18, 2010 | Cub Cadet Lawn Mower Blade Drive Belt CUB...

4 Answers

Cub cadet model LT1045 belt coming off the pulley for cutting deck?


FINAL SOLUTION TO FIX THE BELT FROM COMING OFF LT1045 WHILE MOWING!


I also had this issue with my LT1045 belt. However, I just figured out how to finally fix / re-engineer my LT1045 Cub Cadet from having issues with the belt coming off of the deck while mowing.

Taking it back into a shop for repairs will not work, the belt will just come off again the first time you mow. I am making a YouTube Video to help others like me with this mower issue and will post a link here soon showing how to fix this design flaw.

It took me about an hour to fix but I've got it working now with no problems, minimum vibrations and belt is running cool now! I've gone for 2 months with no problems now. Check back soon for the link!! I expect I will have the video tutorial finished within a week!!


- Mike


If you for some reason you cant

Jun 05, 2009 | Cub Cadet Street Sign- tractor lawn riding...

3 Answers

How do you replace the mower belt on a cub cadet?


check the alignment of the ideler pully to make sure it is even withe the drive pulleys. if not in line it will cause the belt to break. There is a spacer that is on the idler that should be on top and not on the bottom of the pully.

Apr 09, 2009 | Cub Cadet Street Sign- tractor lawn riding...

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