December 2018 Service and Repair ManualPlatform ComponentsPart No. 1271125GT Z®-60/37 DC • Z®-60/37 FE 255 Open the bottom bleed screw on the rotator,but do not remove it.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil tosquirt or spray.6 Move the function enable toggle switch toeither side and hold the platform rotate toggleswitch to the right position until the platform isfully rotated to the right. Continue holding thetoggle switch until air stops coming out of thebleed screw. Close the bleed screw.Crushing hazard. Keep clear ofthe platform during rotation.7 Clean up any hydraulic oil that may havespilled.8 Rotate the platform fully in both directions andinspect the bleed screws for leaks.2-3Platform Overload System (ifequipped)How to Calibrate the PlatformOverload SystemCalibrating the platform overload system regularlyis essential to safe machine operation. Continueduse of an improperly operating platform overloadsystem, could result in the system not sensing anoverloaded platform condition. Machine stabilitycould be compromised resulting in the machinetipping over.Note: Perform this procedure with the machine on afirm, level surface.1 Turn the key switch to platform control. Levelthe platform.2 Determine the maximum platform capacity.Refer to the machine serial plate.3 Remove all weight, tools and accessories fromthe platform.Note: Failure to remove all weight, tools andaccessories from the platform will result in anincorrect calibration.4 Using a suitable lifting device, place a testweight equal to the maximum platformcapacity at the center of the platform floor.Refer to the machine serial plate.