A professional who assists maintenance mechanic in repairing and maintaining automotive and mechanical machinery and equipment, such as pumps, compressors, pipelaying machines, ditch-diggers, trucks, and tractors, using jacks, hoists, and handtools. Respnsibilities include:

• Installs jacks and hoists to raise equipment.
• Disassembles and assembles equipment, using handtools.
• Cleans tools and parts with naphtha, gasoline, and other cleaning compounds.
• Performs other duties as described under helper master title.