Air compressors are extremely reliable, which can make it easy to forget routine maintenance. Over time, the motor belt can wear out, reducing the efficiency of your equipment and potentially bringing your operation to a screeching halt if it breaks. If your compressor belt is past its prime, the guide below will help you replace the component and get your machinery running again.

How to Change Your Compressor Belt

Remove the Old Belt

Start by taking off the cover, which is usually a metal shield protecting the compressor belt. Once the belt guard is removed, you should be able to take out the old belt, then loosen the fasteners that mount the motor to the baseplate.

Install the New Belt

With the motor loosened, slip the belt over the gears, making sure the belt is properly aligned. Holding a straightedge against the flywheel will help ensure the belts are completely straight, but you may need to adjust the position of the motor to achieve the perfect alignment. You may need to use a gear puller to move the pulley before tightening down the setscrew.

Replace the Belt Guard

When replacing the belt guard, ensure that all fasteners and screws are tightly secured. Even brand-new air compressors produce significant vibrations, which can force loose screws out of position.

Inspect the Belt Regularly

Replacing the belt at the first signs of trouble will keep your air compressor working efficiently and prevent damage to other components. Ideally, you’ll want to check your belt every three months, looking for excess tension and signs of uneven wear and tear.

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