REV ESection 4 • Repair ProceduresJuly 2007Part No. 72863 GS-3390 • GS-4390 • GS-5390 4 - 5How to Determine the RevisionLevel1 Turn the key switch to ground controls and pullout the red Emergency Stop buttons to the onposition at both platform and ground controls.2 Move and hold the function enable toggle switchand the platform up/down toggle switch in thedown direction.Result: The revision level of the ECM willappear in the LED display window.PLATFORM CONTROLS1-3Controller Adjustments(before serial number GS9003-41523)All machine function speeds are determined by thepercentage of total ECM voltage output. Thespeeds of the following machine functions may beadjusted to compensate for wear in the hydraulicpump and drive motors.· Raised drive speed· Fast platform lift speed· Platform lower speed· Steer speed· Platform settling speedFor further information or assistance, consult theGenie Industries Service Department.Tip-over hazard. Do not adjust thelift and/or drive speed higher thanspecified in this procedure. Settingdrive speed greater thanspecifications could cause themachine to tip over resulting indeath or serious injury.Tip-over hazard. This proceduremust only be performed by atrained service professional.Attempting this procedure withoutthe necessary skills will result indeath or serious injury.Note: Select a test area that is firm, level and freeof obstructions.a red Emergency Stop button P1b platform up/down toggle switch TS66c function enable toggle switch TS67c b20 AMPSYSTEMHOUR METERRefer to the appropriateGenie service manualfor code descriptions.FunctionEnableStopa
