It is pretty easy.
-Plug in the shop air from the air reel above the welding area.
-There is a clamp in the front that locks the unit. Open the clamp to load your part then lock it.
-Turn on the power. The lights and dust extractor will turn on.
-Get the nozzle within a few inches of the part. Probably 2 or 3 inches away.
-The blue pedal is what actuates the abrasive.
Happy Blasting!