3 - 26 Genie S-40 and Genie S-45 Part No. 102521January 2005Section 3 • Scheduled Maintenance ProceduresB-12Test the Drive BrakesProper brake action is essential to safe machineoperation. The drive brake function should operatesmoothly, free of hesitation, jerking and unusualnoise. Hydrostatic brakes and hydraulically-released individual wheel brakes can appear tooperate normally when they are actually not fullyoperational.Collision hazard. Be sure that themachine is not in free-wheel orpartial free-wheel configuration.Refer to B-6,Confirm the ProperBrake Configuration.Select a test area that is firm, leveland free of obstructions.1 Mark a test line on the ground for reference.2 Start the engine from the platform controls.3 Move the engine idle control switch tofoot switch activated high idle (rabbit andfoot switch symbol), then lower the boom intothe stowed position.4 Choose a point on the machine; i.e., contactpatch of a tire, as a visual reference for usewhen crossing the test line.5 Bring the machine to top drive speed beforereaching the test line. Release the drive joystickwhen your reference point on the machinecrosses the test line.6 Measure the distance between the test line andyour machine reference point. Refer toSection 2,Specifications.The brakes must be able to holdthe machine on any slope it is ableto climb.CHECKLIST B PROCEDURES REV A4 Release the foot switch and shut the engine offby pushing in the red Emergency Stop buttonin to the off position.5 Move the fuel select switch to LPG.6 Restart the engine and allow it to run atlow 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.
