Operator's Manual Eighth Edition • First PrintingOperating Instructions44 Z ® -30/20N • Z ® -30/20N RJ Part No. 1319005GTDrive EnableLight on indicates that the boomhas moved just past either non-steer wheel and the drivefunction has been interrupted.To drive, hold the drive enable switch up or downand slowly move the drive control handle offcenter.Be aware that the machine may move in theopposite direction that the drive and steer controlsare moved.Always use the color-coded direction arrows onthe platform controls and the drive chassis toidentify the direction the machine will travel.Low Voltage Interrupt (if equipped)Machines equipped with Low Voltage Interrupt willlose primary and secondary boom up functionsfrom the platform when batteries are low.Machine Not Level Indicator LightIf the tilt alarm sounds when theplatform is raised, use extremecaution. The machine not levelindicator light will come on and thedrive function in one or bothdirections will not operate. Identifythe condition of the boom on theslope as shown below. Follow thesteps to lower the boom beforemoving to a firm, level surface. Donot rotate the boom while lowering.If the tilt alarm sounds withthe platform uphill:1 Lower the primaryboom.2 Lower the secondaryboom.3 Retract the primaryboom.If the tilt alarm sounds withthe platform downhill:1 Retract the primaryboom.2 Lower the secondaryboom.3 Lower the primaryboom.