Using your AS3 front brake disc and caliper guard is easy. First, remove the left wheel spacer from your bike. Then, attach the aluminum mounting bracket in its place. Next, wrap the plastic guard around the front brake disc and the lower part of the caliper. Make sure it's securely in place.
When it comes to maintenance, it's a good idea to clean the guard regularly. You can use a mild soap and water to gently wash away dirt and debris. Check the mounting bracket and the guard for any signs of damage after each ride. If you notice any cracks or significant wear, consider replacing the guard.
Also, keep in mind that the guard is designed for specific Husqvarna models from 2015 - 2023. Don't try to fit it on a different model as it may not work properly. And when you're riding, the guard will protect your brake disc and caliper, but it won't make your bike indestructible. So, still ride carefully on rough tracks.