Service and Repair Manual September 2016Ground Controls58 GS-84 • GS-90 Part No. 1272222How to Adj ust the Steer SpeedHow to Adjust the Steer Speed1 Pull out the red Emergency Stop button to theon position at the platform controls.2 Push in the red Emergency Stop button to theoff position at the ground controls.3 Turn the key switch to ground control.4 Press and hold both the blue platform up andyellow platform down buttons. Pull out the redEmergency Stop button to the on position atthe ground controls.Result: TUNE SPEEDS is showing in thediagnostic display window. The ECM is now inprogramming mode.5 Press the lift function enable button.6 Use the yellow platform down arrow to scroll tosteering speed.Result: STEERING SPEED is showing in thediagnostic display window.1 diagnostic display2 blue platform up button3 lift function enable button4 yellow platform down button7 Press the lift function enable button.8 Press the yellow platform down button todecrease the steering speed or press the blueplatform up button to increase the steeringspeed.9 Press the lift function enable button.10 Push in the red Emergency Stop button to theoff position at the ground controls.5-3 Softw are Confi gur ation5-3Software ConfigurationThe Electronic Control Module (ECM) containsprogramming for all configurations of theGS-84 and GS-90. Machines can be adjusted to adifferent configuration using the buttons at theground controls. To determine the softwarerevision level, refer to Repair Procedure, How toDetermine the Revision Level.Machine Option Definitions:Descent Delay: This option halts descent whenthe down limit switch is activated. All controls mustbe released for 4 to 6 seconds before descent isre-enabled. Required for AS and CE models.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 AS andCE models.Sim Operation: When enabled, this allows somemachine functions to be activated simultaneously.Required to be disabled for AS and CE 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.
