Knowledge of: tools, equipment and procedures used in the overhaul, repair, and adjustment of automotive and related power driven equipment; computer controlled fuel and ignition systems; operating principles of internal combustion engines powered by gas, diesel, and alternative fuels; safe work practices; repair of cranes, draglines, hydraulic booms, digger derricks, personnel lifts, wire pulling, track layer, hydraulic, pneumatic, automotive type heating, air conditioning and electrical equipment; basic electricity; rigging methods, Gantry crane safety, mobile crane inspection, overhead crane/hoist inspection. Replace or repair faulty parts including ignition parts, fuel injectors, filters, pumps, alternators, generators, distributors, relays, lights switches, wheel bearings, clutches, oil seals, shock absorbers, exhaust systems, steering mechanisms, vehicle air conditioning, air compressors, electronic and computerized control systems, gas, diesel, and alternate fuel powered engines, and related parts.