The awarded vendor will maintain the Units using trained personnel directly employed and supervised by the awarded vendor. The maintenance will include inspection, lubrication, and adjustment of the following parts: Controller parts, selectors and dispatching equipment, relays, solid‐state components, transducers, resistors, condensers, power amplifiers, transformers, contacts, leads, dashpots, timing devices, computer and microcomputer devices, steel selector tapes, mechanical and electrical driving equipment, signal lamps, and position indicating equipment. Door operators, car door hangers, car door contacts, door protective devices, load weighing equipment, car frames, car safety mechanisms, platforms, car and counterweight guide shoes including rollers and gibs, and emergency car lighting. Hoist way door interlocks and hangers, bottom door guides, and auxiliary door closing devices. Machines, worms, gears, thrust bearings, drive sheaves, drive sheave shaft bearings, brake pulleys, brake coils, contacts, linings, and component parts. Motors, brushes, brush holders, and bearings. Governor components, governor sheaves and shaft assemblies, bearings, contacts, governor jaws, deflector or secondary sheaves, car and counterweight buffers, car and counterweight guide rails, car and counterweight sheave assemblies, top and bottom limit switches, governor tension sheave assemblies, and compensating sheave assemblies. Pumps, pump motors, operating valves, valve motors, leveling valves, plunger packings, exposed piping, above ground plungers and cylinders, and hydraulic fluid tanks. Escalator handrails, handrail drive chains, handrail brush guards, handrail guide rollers, alignment devices, steps, step treads, step wheels, step chains, step axle bushings, comb plates, floor plates, tracks, external gearing, and drive chains. Escalator upper drives, upper drive bearings, tension sprocket bearings, upper newel bearings and lower newel bearings, demarcation lights, and comb lights.