Chainsaw Repair

I use a 53.3 cc Husqvarna everyday for work and it has more then enough power. I also have one I use around the yard and I put a string trimmer on it and seems to work great.   Cylinder displacement   3.3 cu.inch / 53.3 cm³ Power output   3.8 hp / 2.8 kW
http://www.husqvarna.com/ca/en/forest/products/forestry-clearing-saws/555fx/#specifications

Id put a regular blade on that solo. we cut trees 5 inch across the stump with 9" blade everyday at work even bigger if we have to. Is that solo for professional use? could it be used for silviculture work or is it something for personal use?