You don’t have to take your circular saw to the shop for a tune-up; we’ve brought the shop to you. In this video, professional tool technician Tom Peck shows you how to extend the life of your saw with simple cleaning and general maintenance. There's no 3,000 mile rule here, but if your saw starts running more slowly than normal, or you see sparks coming from the back of the housing, it’s time for a tune-up—and it’s a good idea to start by using your air compressor to blow all dust and debris from your saw. Also, don’t forget to inspect your brush spring carefully; if it appears blue, warped, or shows any signs of deterioration, it’s best to replace it, which also increases the life span of your saw.
For more on circular saw maintenance, watch Tom replace the trigger on this saw or read John Ross's Circular-saw repair.