Section 3 • Scheduled Maintenance Procedures January 20133 - 10 GS-84 • GS-90 Part No. 84793A-6Test the Oscillate Axle -GS-90 ModelsGenie specifications require that this procedure beperformed daily or every 8 hours, whichever comesfirst.The oscillate system is designed so that all fourtires maintain firm contact to the ground on unlevelterrain improving traction and machine stability.Proper axle oscillation is essential to safe machineoperation. If the axle oscillation system is notoperating correctly, the stability of the machine iscompromised and it may tip over.Note: Perform this procedure with the platformextension(s) in the retracted position with noadditional weight in the platform.1 Start the engine from the platform controls.Select the high idle function.Test the Oscillate System (stowed position):2 Drive the left steer tire up onto a 4 in / 10 cmhigh ramp.Result: All four tires should maintain firmcontact with the ground.3 Drive the right steer tire up onto a 4 in / 10 cmhigh ramp.Result: All four tires should maintain firmcontact with the ground.Test the Oscillate System (elevated position):4 Push and hold the lift function enable button andraise the platform between 7 ft / 213 cm to9 ft / 274 cm.5 Drive the left steer tire into a 4 in / 10 cm deephole.Result: All four tires should maintain firmcontact with the ground.6 Drive the right steer tire into a 4 in / 10 cm deephole.Result: All four tires should maintain firmcontact with the ground.Note: Verify there are no fault codes shown on theground control display.CHECKLIST A PROCEDURES
