Position Summary Under supervision, performs inspection, maintenance, troubleshooting, diagnosis, repair, removal, replacement and testing necessary to maintain all District vehicles, including record keeping and written verification of work accomplished as directed.    Essential Responsibilities Responsible for major rebuilding, repair and/or removal and replacement of engines, transmissions, clutches, differentials, turbochargers, pumps, motors, injectors, cylinder heads, compressors and hydraulic systems, air brake, air systems, steering, air conditioning, and electrical systems and associated vehicle parts. Provides minor and incidental repairs to vehicles in general, including manufacture and/or repair of components to maintain equipme