The belt that goes from the PTO pully to the mower deck keeps jumping off. I have changed belt, idler pully and spring. What do I do now?? I even had a washer made that goes under the arm that holds the idler pully.
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The belt tentioner is loose.
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Your riding mower belt keeps coming off because of several possible causes such as a damaged, dirty, or incorrectly installed belt. This problem can also be due to an oil leak, damaged mower pulleys, damaged bearings, or a misaligned or stretched out belt.
Slipping can be the result of a loss of belt tension (or a weak automatic tensioner) or pulley misalignment. When the belt slips off the track, the friction between the belt and accessory drive pulleys causes the belt to overheat. If you hear a high pitched squealing noise, it`s probably time for a switch.
A common cause of belt breakage is excessive grass clippings on the deck. Grass clippings can work their way under pulleys and deck covers, causing series problems. Make sure to clean off your deck after every mower use and follow manufacturer recommendations.
A perfectly tight mower belt can rotate without slipping off but not cause the engine to over-exert and overheat. If the belt does not slip off while working and is not producing unfavorable sounds that indicate wearing off of the belt, then that is the perfect tightness for it.
Improper belt tension is the most common and obvious cause of slip, which generates unwanted heat. The friction that occurs when a V-belt slips in a pulley causes belt sidewalls to become glazed, and decreases gripping ability.
Unexpected noise: A squealing noise often indicates slippage between the belts and the pulleys. A chirping sound could stem from misalignment of a pulley or drive belt, as well as a host of other issues. Tensile failure: A common indicator of misalignment, tensile failure may be due to uneven cord loading.
Check on how the belt gives way to your pressure; it should not be loose enough to give way more than a few inches. For mower belts that give way more than two inches, you need to tighten them according to the model`s manual.
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LT1045 keeps breaking NEW belts after just a short period of mowing.
Have you checked the bearings?
Drive belt Have replace drive belt but mower still has no forward movement. Mower is only 2 years old but its already had to have another drive belt installed by the dealer last year. wanted to do it myself but when i install belt theres hardly any tension so mower doesnt move. Checked and rechecked the diagram and is installed correctly. Cant find a tensioner adjustment if it has one.
I don’t have an answer for you, but Do you have a diagram of the Drive Belt?
ROUTING OF BELT – Mtd Drive Belt 42"
Diagram is on the mowing deckBest regardsCk
Belt for self popelled mower keeps breaking? Cannot keep a new belt on pulley
Check that the pulley isn’t seizing up and causing the belt to snap, also be sure you loosen up the self propelled mechanismn by spraying down with WD 40, too much belt tension can cause this, but it rather seems like the belt pulley seizes and the engines drive pulley keeps turning causing the belt to overheat and break or stretch and come flying off.
Need a diagram for craftsman 44″ riding mower drive belt. Mine threw belt and cannot locate original manual.
If you can find the model number of your mower, you should be able to find your manual here. I hope this helps.http://www.searspartsdirect.com/partsdirect/index.action
Deck belt keeps tearing up then falling off
If it’s an idler pulley, where the belt changes direction from the engine – yes it should turn freely. If it’s a double pulley where the drive pulley from the engine connects with the deck/blade pulley, then it it’s not going to turn totally free because of the blade pulleys connected to it. But in all cases, none of the pulleys should be seized. Try using WD40 or PB Blaster on the pulley bearing surface to loosen it up – or a new pulley…
Cub Cadet 1525 belt diagram
Attached is the blade diagram for correct placement of the deck belt. There is some bleed through from the back page, but you can see the direction of the belt. I have a 1525 mower for the last 11 years, still running and going. Hope this helps!
Fitting new drive blet
Just loosen the adjuster and when it loose pull-out the loosen belt and replace with the new one and retight the adjuster at exact belt tension