Description of Tool Usage:

This tool is used to simulate a temperature enabling opening of the Fuel Returm Valve (FRV). This tool is used in conjonction with the tool P/N 856A2797 for CFM56 engine and P/N 101-00907 for IAE engine. Operated on 6x 1,5 VDC size AA batteries and 1x 45 VDC No 415 battery.