2. Bolts sub assemblies, such as motors, pumps, control panels, blowers, heating units, and doors, using wrenches and power nut runners. 3. Aligns doors, brackets, racks, and moving parts before tightening to achieve appearance, fit, and movement specified. 4. Packs or folds insulation between panels. 5. Connects electrical wires on control panel to motors, heating units, or blowers, according to