4 - 42 Genie S-60 & Genie S-65 Part No. 65196Third Edition • First PrintingSection 4 • Scheduled Maintenance ProceduresTABLE B PROCEDURESB-15Test the Fuel Select Operation -Gasoline/LPG ModelsThe ability to select and switch betweengasoline and LPG fuels as needed is essential tosafe machine operation. A fuel selection can bemade while the engine is running or not.Switching malfunctions and/or the failure of theengine to start and run properly in both fuelmodes and through all idle speeds can indicatefuel system problems that could develop into ahazardous situation.Perform this test after checkingthe gasoline and LPG fuel levels,and warming the engine to normaloperating temperature.1 Move the fuel select toggle switch to gasolineand then move the engine idle select switch tofoot switch activated high idle (rabbit and footswitch symbol).2 Start the engine from the platform controls andallow it to run at low idle.3 Press down the foot switch to allow the engineto run at high idle.Result: The engine should start promptly andoperate smoothly in low and high idle.4 Release the foot switch and shut the engine offby pushing the Emergency Stop button in to theOFF position.5 Move the fuel select switch to LPG.6 Start the engine and allow it to run at low idle.7 Press down the foot switch to allow the engineto run at high idle.Result: The engine should start promptly andoperate smoothly in low and high idle.The engine may hesitatemomentarily and then continueto run on the selected fuel if thefuel source is switched whilethe engine is running.