(1)- Train and manage maintenance personnel and subcontractors. (2)- Inspect, operate, or test machinery or equipment to diagnose machine malfunctions. (3)- Clean or lubricate shafts, bearings, gears, or other parts of machinery. (4)- Repair or replace defective equipment parts, using hand tools , and equipment. (5)- Perform routine preventive maintenance to ensure that machines continue to run sm
oothly, building systems operate efficiently. (6)- Record repairs made, time spent, and parts used. (8)- Sell parts and equipment. (9)- Adjust points, valves, carburetors, distributors, and spark plug gaps, using feeler gauges. (10)- Dismantle engines, using hand tools, and examine parts for defects. (11)- Obtain problem descriptions from customers, and prepare cost estimates for repairs. (12)- Perform routine maintenance such as cleaning and oiling parts, honing cylinders, and tuning ignition systems. (13)- Reassemble engines after repair or maintenance work is complete. (14)- Operate cutting torches or welding equipment to cut or join metal parts. (15)- Inspect used parts to determine changes in dimensional requirements, using rules, calipers, micrometers, or other measuring instruments. (16)- Set up and operate machine tools to repair or fabricate machine parts, fixtures, or tools. (17)- Maintain and repair specialized equipment and machinery found in cafeterias, laundries, hospitals, stores, offices, or factories. (18)- Assemble boilers at installation sites, using tools such as levels, plumb bobs, hammers, torches, or other hand tools. (19)- Install equipment to improve the energy or operational efficiency of residential or commercial buildings. (20)- Perform routine maintenance on boilers, such as, installing replacement parts, or reinforcing structural weaknesses to ensure optimal boiler efficiency.