The primary purpose of this position is to maintain, repair, modify and inspect heavy mobility equipment as well as various types of motor vehicles and powered support equipment, both gasoline and diesel powered. Performs required repair of gasoline and diesel powered vehicles and equipment as assigned, using independent judgment and own initiative on the repair work. Performs Time Compliance Technical Orders (TCTOs) including scheduled, unscheduled and special inspections. Determines when and how far major components should be dismantled; what parts and mechanisms can be reworked, refitted, or replaced with new parts and the type, extent and alignment required, using technical orders, commercial manuals, automotive computer data base system, or local directives. Adjusts and/or overhauls engine mechanical systems, state of the art fiber optic systems, electrical, air conditioning, fuel-air, emission control, power trains, gear reduction systems, electronic/pneumatic controlled automatic and manual transmissions, power take-offs, differentials, power dividers and computerized brakes, steering and suspension system components. Performs operational driving tests to determine serviceability of equipment. Performs body repair and corrosion control, repaints, and refinishes surfaces as required. Uses welding equipment, power tools, hand tools and other specialized equipment. Cleans, replaces, tests and repairs radiators/oil coolers and associated parts. Incumbent replaces or repairs tires and/or tubes and balances wheels. Diagnoses malfunctions by visual or auditory examination methods. Uses complex test equipment such as engine analyzers, compression testers, voltmeters, ohmmeters, computerized diagnostic scan tools and pressure gauges to determine exact nature or extent of repairs or adjustments necessary. Isolates malfunction by using systematic vehicle analysis. Troubleshoots, inspects, tests, analyzes and adjusts vehicle computer/electrical control systems, mechanical and hydraulic systems, lubricating, cooling, air conditioning, emission and exhaust systems, state of the art fiber optic systems, engine electrical systems, engine fuel-air systems, electronic/pneumatic controlled automatic and manual transmission, power take-offs, differentials, power dividers, power trains, computerized brakes, steering and suspension systems. Prepares, maintains and submits maintenance work orders for man-hour and data collection accounting. Records work performed or delayed and parts or maintenance required. Reviews and maintains technical orders, operating instructions, commercial publications, Major Command (MAJCOM) and local publications, automotive data base updates, as well as other pertinent directives. Establishes and maintains adequate bench and special stock support levels and appropriate tools and equipment. Researches or assists in requisitioning materials, parts and equipment necessary to perform the vehicle maintenance management mission. Participates as On-the-Job Training (OJT) instructor in the vehicle maintenance area. Operates general and special purpose vehicles, base maintenance, materials handling equipment, and Aeronautical Ground Equipment (AGE), as required to support the unit mission. Plans and schedules tasks and training activities for drill status guard members.