seem ok.the transmission works ok but i get belt squeal w

New belts x 4 .a new idler pullys.
Any help please.

How to Identify and Fix Common Gardening Problems ?

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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.
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.
If a belt is not tensioned properly, it will ride too loose or too tight on the pulley. A belt that`s too loose on a pulley will cause slippage, which leads to heat build up from friction. This heat will damage your rubber belts and cause the belts to crack and break.
One of the most common reasons a serpentine belt will shred is due to it being old and worn out. As the belt ages, the individual fibers that make up the belt begin to break down and separate, causing the surface of the belt to become frayed and weak.
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.
A: Your mower has two belts. Both play a role in making the blades turn. The “Deck Belt” goes around the pulleys right above the blades on the deck and then to a double pulley. The “Drive Belt” on your mower goes from the transmission, around an Idler pulley then over to the double pulley I mentioned before.
If a belt is too tight in a system, it can add stress to your bearings. The added stress to bearings can result into over amperage of your motor and potential motor failure.
One is to keep the belt clean and lubricated. Another way is to check the tension of the belt periodically, and make sure that it`s not too tight or too loose. The last way is to get your car serviced regularly so that they can inspect the condition of your car`s drive belt and replace it if necessary.
Checking the belt tension

Use a ruler to find the mid-point on the belt`s longest run between pulleys. Use a ruler to find the midway point on the belt`s longest run between pulleys. Hold the belt between finger and thumb at this point and move it from side to side. See how much it deflects at the centre of the run.

There is no specific time length that mower belts need to be replaced. Some belts may last longer than others due to different operating conditions. One thing is for certain though, the more the mower is used, the sooner you will need to consider replacing the mower belt.
Extremes of hot and cold can cause the rubber to develop minor cracks in the outer surface of the belt. This can cause the timing belt to need replacing faster. Keeping your car in a garage rather than outside can help to reduce the extent of the changes of temperature to which your timing belt is subjected.
With the heat and friction inside the engine, the rubber material will become worn with age and miles. Rubber teeth may wear down and no longer be able to grip the gears. This often results in a slip of the timing belt and potential damage to the engine. The timing belt may also begin to crack under stress.

Discover Relevant Questions and Answers for Your Specific Issue

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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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How to change drive belt – Huskee Tractor Replacement Riding Lawn Mower 42" Deck Mulching Kit fits Huske
ANSWER : Step 1 – Loosen tension and remove belt. Locate the adjustment fastener and loosen it. …
Step 2 – Inspect drive and drive pulleys. Check the drive and pulley wheels. …
Step 3 – Select correct replacement belt. …
Step 4 – Install V-belt. …
Step 5 – Correctly tension new belt. …
Step 6 – Start the engine.

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Is the rubber on the drive wheel on the snapper mower fixed to the metal hub? The rubber wheel part of the drive is not securely attached to the metal frame and slips when the mower goes up hill. Should I replace the drive wheel?
ANSWER : Yes, it may have gotten excessive oil on it and swelled the rubber. Replace the drive wheel.

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How do you change a lawnmower drive belt? – Toro LX468 lawn tractor

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Need a diagram for craftsman 44″ riding mower drive belt. Mine threw belt and cannot locate original manual.
ANSWER : If you can find the model number of your mower, you should be able to find your manual here. I hope this helps.

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ROUTING OF BELT – Mtd Drive Belt 42"
ANSWER : Diagram is on the mowing deckBest regardsCk

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Diagram for belt replacement on 1988 Toyota Tercel
ANSWER : Fig. 1: Correct timing mark placement on 3E and 3E-E enginesHope this helps; also keep in mind that your
feedback is important and I`ll appreciate your time and consideration if
you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

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Took my 1715 in to have the drive belt replaced, and when I got it back and went to mow, the electric PTO engaged, but the blades turned slowly, and bogged down in tall grass.

After engaging and disengaging the clutch and raising and lowering the deck in an attempt to get a feel for the problem, I noticed and smelled belt smoke, so I turned her off and looked underneath and saw a lot of slack in the deck belt. The deck belt was not correctly behind the idler pulley. At this point the PTO switch would not disengage, preventing the mower from even starting, but she would at least crank.

I took it back and showed the mechanic, who lowered the deck, put the belt around the pulley correctly, adjusted the three clutch bolts, then I attempted to start and she wouldn’t even turn over. He claims the clutch bearings may be frozen, all I know is it was fine before I took it to him.

It was very discouraging because when I took it to him, the clutch was fine, only thing wrong was the drive belt.


1. It seems as if the mechanic forgot to run the deck belt around the idler pulley – would the resulting slack in the deck belt damage the clutch in any way? If so, how? Is there reason to believe that the minor adjustment he made would cause the mower to not crank?

Any comments or help you could give would be much appreciated, it seems very strange.


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