Program a machine that applies acid to precision-etch metal and plastic.
Tends machine that automatically injects meat with curing solution: Adjusts height of injection needles and width of conveyor guides, using wrenches. Turns valves to regulate flow and pressure of curing solution in pumping system. Starts machine and conveyor. Places meat on conveyor that pulls meat under machine injection needle which forces measured amount of curing solution into meat, and dumps treated piece into cart. Weighs meat before and after injection to ensure that specified amount of solution has been injected. May lift treated meat from conveyor, using handhook, and drop it into tank. May inject curing solution into meat, using hand pump, and be designated Pumper, Hand.