Terex Genie TZ-50 Service Manual

Also see for Genie TZ-50: Operator's manual

Part No. 824982 Genie TZ-50 4 - 47January 2016 Section 4 • Repair ProceduresThe TZ-50 drive option allows the operator to movethe machine into another position without havingto use a tow vehicle to do so. This option packageincludes drive controls, a brake cylinder, and adrive motor for each axle wheel.When a drive function is activated at the drivecontrol box, a signal is sent to one or more of thedrive manifold valve coils, enabling the machineto move. The drive controls will function only whenthe machine is in the stowed position, the parkingbrake is set, and both wheel motors are in placeagainst the axle tires.To begin, manually move and lock the drive wheelsin place against the axles tires. Then, by squeezingthe joystick, to activate the drive function enablebutton, and moving the joystick in the desireddirection, the parking brake will release via theparking brake cylinder located under the chassis,and both drive motors will activate which will in turnmove the machine.Returning the joystick to the neutral position willdisable the drive and steer function, and set theparking brake.14-1 Drive MotorHow to Remove a Drive MotorWhen removing a hose assembly or fitting, theO-ring on the fitting and/or hose end must bereplaced and then torqued to specification duringinstallation. Refer to Section Two, Hydraulic Hoseand Fitting Torque Specifi cations.1 Remove the drive wheel retaining fasteners.2 Remove the drive wheel.3 Tag, disconnect and plug the hydraulic hosesfrom the drive motor. Cap the fi ttings.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil to squirtor spray.4 Remove the drive motor mounting fastenersand remove the drive motor from the machine.Drive Components