How do you align a pulley with a straight edge?

The straight edge method is used when the pulley itself is misaligned, not the belt. A person using this method would hold the straight edge up to the pulley wheels and slowly turn them around.

Do pulleys need to be aligned?

Belt alignment or, more precisely, pulley alignment, is a principal maintenance activity. When pulleys are not aligned properly, additional loads are induced. The aim of belt alignment is to align the grooves of the drive and driven pulleys so that the belts run with minimal wear.

How do you align a conveyor pulley?

What causes pulley misalignment?

It occurs when the motor for a pulley is either too far back or too far forward, resulting in the incorrect positioning of the motor. It can be fixed relatively quickly by changing the position of the motor to align the pulley again.

How should a belt fit on a pulley?

The top of the belt should be within -inch of the outer surface of the pulley. If the belt top is deeper in the groove, the groove or belt is worn, which can shorten the remaining belt life by as much as 50 per cent.

How to align the pulleys on an HVAC blower

What's the difference between a pulley and a sheave?

A pulley is one of six types of simple machines. A sheave (pronounced “shiv”) is actually part of the pulley system. The sheave is the rotating, grooved wheel inside the pulley. This is the piece that the rope fits into.

How do you align a drive belt?

Drive belt alignment

Make sure that the Drive Belt is aligned parallel to the left side frame rail. Measure the drive belt‑to‑frame rail distance at the Drive Motor pulley and the Drive Roller pulley. The Drive Belt is correctly aligned when the two measured distances are the same: If the measurements are not the same.

What is belt pulley misalignment?

V-belt drive misalignment exists when the driver and driven sheaves are not properly aligned. Misalignment can take either the form of angular or parallel (offset) misalignment, or a combination of both.

What does a misaligned belt sound like?

A chirping noise that increases in frequency as the engine is revved up can be the result of belt vibration caused by misaligned pulleys. In fact most cases of belt noise are caused by misaligned pulleys and belts.

Is the tensioner pulley supposed to move?

The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced.

What causes a belt to chirp?

Chirping is a result of belt vibration. This can occur due to improperly aligned pulleys, damp or wet conditions, and/or belt glazing. Minor pulley misalignment can result from excessive manufacturing tolerances or installation errors.

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.

How do I keep my conveyor belt centered?

The belt can be centered by "knocking" ahead (in the direction of belt travel) the end of the idler to which the belt runs. Shifting idlers in this way should be spread over some length of the conveyor, or radial stacker, preceding the region of the trouble.

How do you check a belt conveyor alignment?

Can a belt tensioner be adjusted?

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.