working with gasoline-engined saw

beech branch burn burned burning clothes crust cut cutted cutter energy engined flame gasoline handwork hard hat heat heater heating helm helmet job log logs lumber lumberjack lumberman machine man masonry muscles nature petrol pile power powerful protect protection protector protictive provide provider saw sawdust sawed sawn serrated shaving shavings shelter split splitted splitter splitting technic technical timber tree wood woodsman working yellow