Using this MACK Granite Cement Mixer is easy. First, locate the fold - out crank handle in the water tank and use it to operate the mixing barrel. You can attach the 2 slip - on chute extensions to the sides of the truck and then slip them over the rear concrete chute as needed. When opening the doors and folding the side - view mirrors, do it gently to avoid damage. For the engine hood, lift it carefully to view the engine block. To keep it in good condition, clean it regularly with a soft cloth. Avoid exposing it to extreme temperatures and rough handling. If any parts seem loose, check and tighten them properly.