Hello you do realise that is an heavy machine I have 2 brush cutters a 40 cc stihl and a 46 cc Stihl they weigh 9 kg ,approximately 22 pounds,get to know the machines functions the balance must be right before using the metal blade must be either level or a slight angle to the front set this up with the harness ,depending on your height can affect the way a brush cutter works the easiest way to set one up is put the harness on the hook wants to be at belt height get the handle bars set (no handle bars no blade) hook the brushcutter on and fold your arms the machine will find it's own balance point,the rider plate under the blade should be about an inch from the floor so when you push on the handles to put the machine into work the rider plate is on the floor,remember that with a blade on if you know how to do it back cut,I'm on a paddock cutting job next week I've opened an 6 foot swath out itll be 6 very wide every swing,check the fuel requirements ad some brushcutter wont run on E10 and make sure you mix the fuel exact mystical FS 460 soon let's me know if I've put wrong mix in,if it's a Stihl machine you must do the m-tronic service regularly when it tells you my machines due today ,it takes 5 minutes ,stay safe use the safety equipment and enjoy using the brush cutter best destresset there is jezza