Diesel field technicians' responsibilities include inspecting and diagnosing diesel engines and related systems (brakes, transmission, electrical, hydraulics, engines, tracks), performing routine maintenance like oil changes and filter replacements, repairing or replacing faulty parts, and conducting test drives to ensure proper function. DEUTZ designs, builds, and services advanced diesel, gas, and electric engines used in construction, agriculture, material handling, stationary systems, commercial vehicles, rail, and more.