Adjust and reline brakes, align wheels, tighten bolts and screws and reassemble equipment. Align front ends and suspension systems. Attach test instruments to equipment, and read dials and gauges in order to diagnose malfunctions.Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches and differential units. Examine and adjust protective guards, loose bolts and specified safety devices. Inspect brake system, steering mechanisms, wheel bearing, and other important parts to insure that they are in proper operating condition.Inspect, repair, and maintain automotive and mechanical equipment and machinery such as pumps and compressors.Inspect, test and listen to defective equipment to diagnose malfunctions, using test instruments such as hand held computers, motor analyzers, chassis charts and pressure gauge.Operate valve -grinding machines to grind and rest valves.Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.Raise truck, buses, and heavy parts or equipment using hydraulic jack or hoist. Rebuild gas and diesel engine. Recondition and replace parts, pistons, bearings gears, and valves.Repair and adjust seats, doors and windows and install and repair accessoriesRewire and ignition system, lights and instrument panels,. Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications.Test drive buses and truck to diagnose malfunctions or to insure that they are working properly.Use hand tool such as screwdrivers, pliers, wrenches, pressure gauge and precision instrument, as well as pneumatic wrenches lathes, welding equipment, and jacks and hoist.

Prepared and maintained records of maintenance and repaired work on transit vehicles and equipment.Analyzed, diagnosed, adjusted, repaired, and overhauled a variety of diesel and gasoline engines and auxiliary equipment.Performed a variety of preventive maintenance functions to ensure proper operation of transit equipment.Accomplished the more difficult aspects of diagnosing, repairing, and removing more sophisticated mechanical, electrical and auxiliary system.Performed complete engine overhauling on all transit equipment components.Diagnosed, repaired, removed, and replaced all transit equipment components and assemblies.Diagnose repaired, removed, and replaced worn or damaged parts.Calibrated to designated specification those units which require setting or adjustments.Used various type of shop equipment precision testing and measuring instruments and specialized tools required for the diagnosis, repair and maintenance of transit equipment.