How-To Blogs & Videos

Few things are more frustrating than an air compressor motor that hums, clicks, or struggles to get going. A hard start issue not only delays your work but can also indicate underlying problems that, if ignored, could lead to costly repairs or even motor failure. At Master Tool Repair, we understand the critical role your motor plays. This guide will help you diagnose common reasons why your air compressor motor might be struggling to start, empowering you to identify the problem and …

You're in the market for a new air compressor...what now? There are some things you'll need to know so you can find the air compressor that best fits your needs and your budget.So, let's get started!What brand of air compressor do you choose?How much PSI will I need?How much CFM will I require?Will I need a two-stage unit or is a single-stage unit sufficient?Is oil-free or oil-bath best?If you're a contractor or use your air compressor in an industrial or commercial application, solid …

Ever wonder how to calculate the CFM (Cubic Feet per Minute) output of your air compressor?If you're not sure your old compressor is performing as it should or if you're just shopping for a new compressor, here's how so you can go in one step ahead!Calculating CFM Output Of An Air CompressorAir compressors for residential and most commercial uses have notoriously inflated horsepower ratings. The specs and stickers on the unit are not always accurate, and add confusion instead of critic …

This manual contains operation and service instructions on how to maintain and operate your Rolair K Series compressor.You will find this manual a valuable guide to the proper and safe operation and maintenance of your K Series. It is intended to be used by anyone using or maintaining the equipment. Follow the instructions carefully and you will assure yourself of the utmost in compressed air efficiency and economy. Click Here to open the 34 page K Series compressor manual. …

The Safety Release Valve is probably the most important item on your air compressor...it saves lives! Here's how to tell if the Safety Valve needs replacement: It constantly leaks (obviously) upon initial start-up (from 0 PSI). If the Safety Valve doesn't blow off at the PSI designated on the Valve itself. If the Safety Valve blows off before the compressor shuts off. NOTE! Find out what the maximum PSI is of your compressor (a.k.a. "cut-out" pressure). If your air co …