Section 4 • Repair Procedures January 20134 - 52 GS-84 • GS-90 Part No. 847935-3Software ConfigurationThe Electronic Control Module (ECM) containsprogramming for all configurations of the GS-84and GS-90. Machines can be adjusted to adifferent configuration using the buttons at theground controls. To determine the softwarerevision level, see 7-2, How to Determine theRevision Level.ANSI and CSA models withall software revisions:1 Turn the key switch to ground controls and pullout the red Emergency Stop buttons to the onposition at both platform and ground controls.Result: The revision level of the ECM willappear in the LED display window. Note theresult.2 Push in the red Emergency Stop button to theoff position at the ground controls.3 Press and hold both the blue platform up andyellow platform down buttons. Pull out the redEmergency Stop button to the on position at theground controls.Result: TUNE SPEEDS is showing in the diagnosticdisplay window.Machine Option DefinitionsDescent Delay: This option halts descent when thedown limit switch is activated. All controls must bereleased for 4 to 6 seconds before descent is re-enabled. Required for Europe.Lift/Drive Cut Out: Lift and drive functions aredisabled when the down limit switch is activatedand the machine is on a slope exceeding the ratingon the serial plate. Activated for all machines.Configuring this option to the ON/OFF position wasremoved from ECM programmingafter GS8407-41416 and GS9007-44277.Motion Alarm: The motion alarm will sound whenactivating a function.Motion Beacons: The flashing beacons operateonly when activating a function.Overload: This cuts out all functions when theplatform overload pressure switch is tripped. Thered Emergency Stop button must be cycled beforeany function can be resumed. Required for Europe.Sim Operation: When enabled, this allows somemachine functions to be activated simultaneously.Required to be disabled for European models.Beacons: When installed on the machine, theflashing beacons operate continuously when thekey switch is turned to ground or platform controlsand both red Emergency Stop buttons are pulledout to the on position.Outriggers: When installed on the machine, theoutrigger option must be enabled.Oscillating Axle: When installed on the machine,the oscillating axle option must be enabled.a diagnostic displayb blue platform up buttonc lift function enable buttond yellow platform down buttonGROUND CONTROLSbcda
