If you have to accomplish maintenance for your Husqvarna 260 WRK then it is usually a good plan to have access to a Workshop Manual for a reference just in case you need to know tips on how to take out a specific component such as the Clutch and fit it again safely.
Husqvarna 260 WRK Workshop Manuals offer you exact diagnostic info with regards to your vehicle so if something is not working it can help you find out what the issue is and the way to fix it. You can then decide if you can do this by yourself or that the job is too big you can actually book your 260 WRK into a trusted mechanic.
Husqvarna 260 WRK manual