Diagnose mechanical problems and perform mechanical repairs and adjustments: PTO, hydraulics, emissions, air conditioning/heating, cab, instruments, brakes, frame, steering, suspension, tires, wheels, drive train, electrical system, engine system, fuel system (CNG & diesel) and other components which may need repair with. Ability to use diagnostic computer or read and clear fault codes and diagnose and make efficient repairs following troubleshooting trees · Positive work attitude and ability to work closely with other technicians, drivers, management, and vendors to solve problems efficiently.