Always check the machine to be used is in good shape,well aligned so the blade won't oscillate.
Always wear proper safety equipment:safety footwear,snug fitting clothing,safety goggles,hearing and head protection and proper respiratory equipment.
Make sure the blade is correctly locked according to the machine's specifications before cutting.
Never mount a saw blade to a saw, if the arbor doesn’t fit tightly. This may imbalance the blade, which can be extremely dangerous.