One of the simplest ways to keep your equipment running like new and out of my repair shop is to clean it regularly. Cleaning after every use is optimal to prevent constant dust build up. It's especially important when you're using a wet cutting saw. Without regular cleaning the dust and water create a sludge-like substance that will get in your saw, harden and cause problems when you use it later on.
Cutting concrete isn't the cleanest job, but keeping your saws clean can be easy if you follow the directions from the manufacturer. Take for example this short video from Husqvarna on cleaning the K3000 Wet saw. It gives simple step by step instructions on maintenance after work to save you time on your next job and keep your saw running smoothly.