Here at TechShop in San Jose, we have our Jet "Cold Saw". This tool works very similarly to a Miter saw in the wood shop, but it is for metal. It uses a different type blade, and a coolant liquid to cut though metals. Eventually this blade does get dull, and dull blades will take forever to cut through material, and are dangerous. The best thing to do is to just change the blade.
*As a note, this instructable is intended for people who have their own shop/ shop tools. If you are working at a TechShop location, do not change the blade yourself. Have a staff member help instead!
**As a second note, this guide is here to help you when using your own manual. Do not use this guide alone if you are inexperienced with servicing tools. Use this guide as your own risk.
Step 1: Un Plug the Machine
UN PLUG This is one of the first things you should do when performing maintenance on any machine. This will make it so the machine cannot be accidentally turned on, which would be very very dangerous