A professional who assists gas-appliance servicer in installing, testing, adjusting, and repairing regulators, ranges, and heaters, in customer's establishments. Responsibilities include:

• Transports tools, parts, equipment, and appliances from truck to customer's establishment, using handtruck.
• Measures, cuts, threads, and connects pipe to feeder line and installed appliance, using pipe cutter, threader, and wrench.
• Dismantles appliances and replaces defective pipes, thermocouples, thermostats, valves, and spindles, using handtools.
• Performs other duties as described under helper master title.
• May be designated according to kind of appliance repaired as gas-stove-servicer helper.