Electric

Experienced gardeners share their insights in answering this question :
Check the housing guard for the belt grass might be getting in and pinching between the belt and the pullies causing the belt to come off. You can use foil tape to patch any holes where grass mey be entering, duct tape might melt from the heat of the motor but you could use that as well.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

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.
Belt slipping off tensioner pulley is a common issue that can occur with any type of belt-driven system. The most likely cause is that the tensioner pulley itself is worn out or damaged. In some cases, the problem may also be caused by a misaligned pulley or by a loose belt.
This can be as simple as the lawn mower having run out of fuel or battery, or in the case of electric mowers, the cable coming out of the socket. Also check cables, fuses and breakers for electric mowers. Trimming too much grass in one go can cause the lawn mower to get bogged down which will make it stop.
It`s quite simple, really: your car cannot run at all without a timing belt. If the belt breaks while you are on the road, the car will break down immediately – and your engine can experience severe damage.
Wander Due to Faults with Splices or the Belt

Improper belt splicing is a significant cause of mistracking. If the belt is not spliced squarely, the belt will wander back and forth on the conveyor structure. This can usually be seen at the tail pulley.

What is the Lifetime on a Flymo Robotic Lawn Mower? The battery is maintenance-free but has a life span of approximately 2-4 years, though this is dependent on several factors such as the size of lawn & operating hours etc.
If your Flymo appliance has broken down, you`ll want it fixed as quickly and reliably as possible. With over 35 years` experience in the industry, we have the expertise to do exactly that. Capital Repairs also offers spare parts and new appliances.
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.
Can I Drive With A Worn Serpentine Belt? Yes, you can. But if you know you have a worn belt, it`s better to get a serpentine belt replacement. There`s no reason to knowingly risk your vehicle and your own safety driving with a bad serpentine belt.
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.
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.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Belt for self popelled mower keeps breaking? Cannot keep a new belt on pulley
ANSWER : 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.

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LT1045 keeps breaking NEW belts after just a short period of mowing.
ANSWER : Have you checked the bearings?

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Why the engagement belt keeps falling off – Ariens 42" 19HP Lawn Tractor
ANSWER : Your idler pulley spring broke or come unhook.

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The belt keeps coming off, the pulleys seem to be in good shape, the belt doesn’t look that bad. It been stored for a couple of years.As soon as I put it the ground the belt comes off. Need HELP. MIKE
ANSWER : Get a new belt

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Why does my mower deck belt on john deere 316 keeps breaking
ANSWER : There are a few causes for this and its not just this brand or model. First check that belt is installed correctly, check the part that keeps the belt on the belt rollers the belt should be between the garde and belt wheel, check for shine spots where belt is rubbing, Some times the mower deck is not set even or too low it can put the belt at too much of an angel causing the top of roller to cut it. So check the deck level there are adjustment devices on the mower to adjust, check for shine spots and for correct belt installment, and check roller wheel top for cuts or sharp spots, and check belt tension to see if it is to tight or too lose, also check that rollers spin free and there is not one stuck that could be heating the belt up too much, And last but not least make sure you are using the proper belt that is made for a mower fan belts don’t last very long on a mower.

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Troy Bilt self propelled mower
ANSWER : Cribrat 1;Please don’t be offended but are you sure you are putting it on the right way. A lot of the mowers out today have guards that prevent the belt from coming off the pulleys if there is a foreign object caught up when they are being used. These guards are actually post that are fastened to the chassis of the mower. Troy built is a top name mower so I’m sure their design is reliable. Sorry I can’t be more specific.Does the tension on the belt seem adequate? Is there a tension adjustment. (an idler pulley with an adjustment)?Hope this helps Good Luck Loring Please give me a rating Thks

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Runs but blades wont activate – Craftsman 21 Hp 42" Deck, Ys 4500 Lawn Tractor
ANSWER : The drive belt on my YS 4500 keeps coming off. You need to put it back on, by hand, if it’s not too hot. You just need to find the route of the belt.

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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.
ANSWER : I don’t have an answer for you, but Do you have a diagram of the Drive Belt?

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