Question: What Causes Drive Belt To Rub On Lawn Tractor?

Why does my mower belt keep stretching?

Lawnmower belts stretch due to wear and tear, something that should expect with any machine. Over time, continued use of these lawnmowers results in some problems. And with belts, losing grip on the threads is not always about using oversized fittings like many tend to think.

What causes mower deck belt to twist?

The most common problem with deck belts is excessive grass clipping on the deck. Grass clipping can work there way under pulleys and deck covers which can lead to more serious problems. Last but not least pulleys can cause big problems. Check pulleys for wear and worn out bearings.

How tight should my mower belt be?

Roughly, starting out about as tight as an alternator belt, maybe an inch of play side to side So, tight but not super tight, hard to explain it just takes practice. Too tight is no good, I find if it’s tight enough where it doesn’t slap around at all then it’s also too tight, ain’t life grand.

How often should I change the belt on my riding mower?

There’s no definite amount of time that a mower belt is supposed to last, but increased mower use shortens the interval in which a belt needs replacement. Simply put, more use equals more wear. Additionally, faulty belts or mechanical failures like a seized pulley can make lawn mower belts break prematurely.

Do V belts stretch out?

Most of the time it’s not stretch, but wear on the sides of the belt, that make it loose.

How do I know if my mower deck pulley is bad?

If the spindle looks bent or broken, then it needs to be replaced. You will feel how the blades start to move unevenly and cut your grass in a disorganized way. In some cases, the blade won’t spin at all or instead make loud cracking noises.

Why does my Cub Cadet keep throwing the belt?

If the bearings in the pulleys fail at all, then the pulley will slip against the belt and cause belt wear. It also will throw the belt off if it freezes when it heats up. So check all the pulleys to make sure that they spin without ANY noise at all or vibrations.

Are all mower belts the same?

Both belts, usually made of Kevlar and of a V-groove construction, vary greatly in length on just about every make and model. When you belt wears out, you might wonder how to size the belt for replacement. Fortunately, there are two ways you can size the replacement belt for your mower.

Why did my mower blades stop working?

If your mower blades will not turn after the blade controls have been engaged, your deck belt may be broken. The deck is located directly under the operators seat. This belt spins the mowers blades and runs through a pulley system of idlers. If the belt has snapped, it will need to be replaced.

Why does my belt keep slipping off?

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.

Can you adjust belt tensioner?

When the belt stretches, it can begin to slip, if left unattended. Not all types of drive belt systems can be adjusted. Cars equipped with an automatic belt tensioner adjust themselves over time and do not require adjustment. This article shows you the process to adjust drive belts on a pivot-style belt adjuster.

Can you adjust the drive belt on a Craftsman riding mower?

Blade drive belts on Craftsman lawn mowers are not designed to be be adjusted and there is no mechanism for adjusting them. Instead, the manufacturer recommends replacing a loose belt with a new one.