DUTIES AND RESPONSIBILITIES: Performs functional tests, analyzes performance and malfunctions, removes, installs, tests, maintains, modifies, performs alignments and troubleshoots the electronic, electrical, mechanical and hydraulic assemblies, modules, and interconnecting cables of a variety of combat and tactical equipment to include the M1 series main battle tank, M2/3 series Bradley fighting vehicle, Multiple Launch Rocket System (MLRS), TOW Missile System and the ATACMS Launch Loader Module (LLM) and the M777 Howitzer. Uses various types of test equipment to include systems test sets and stands such as AN/GRM-122s, frequency meters, standing wave indicators, oscillators, ohmmeters, voltmeters, resistance bridges, and signal generators to localize trouble by component unit, by circuit within a component, and by element of a circuit.