Part No. 77828 S-60 • S-65 • S-60 HC 3 - 29February 2012 Section 3 • Scheduled Maintenance ProceduresB-15Test the Drive BrakesNote: Genie specifications require that thisprocedure be performed every 250 hours orquarterly, whichever comes first.Proper 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.See B-7,Confirm the Proper BrakeConfiguration.Note: Select a test area that is firm, level and freeof 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.Note: The brakes must be able to hold the machineon any slope it is able to climb.CHECKLIST B PROCEDURES
