April 2018 Service and Repair ManualPlatform ControlsPart No. 1279835GT ZX®-135/70 23Primary boom up/down functions:1 Turn the key switch to the off position.2 Press and hold the enter button on the groundcontrol panel while turning the key switch toplatform controls. Hold the enter button forapproximately 5 seconds.3 Press the minus button twice, then press theenter button twice.4 Use the scroll button to scroll through themenu until DELETE PRIMARY BOOMUP/DOWN JOYSTICK DEFAULTS isdisplayed.5 Press the plus button to select YES, thenpress the enter button.6 Do not start the engine.7 Locate the primary boom/turntable rotatejoystick.8 Move the boom/turntable rotate joystick fullstroke in the up direction and hold for5 seconds, then return to the center or neutralposition.9 Move the boom/turntable rotate joystick fullstroke in the down direction and hold for5 seconds, then return to the center or neutralposition.Result: The alarm at the ground controlsshould sound for a successful calibration.Jib boom up/down functions:1 Turn the key switch to the off position.2 Press and hold the enter button on the groundcontrol panel while turning the key switch toplatform controls. Hold the enter button forapproximately 5 seconds.3 Press the minus button twice, then press theenter button twice.4 Use the scroll button to scroll through themenu until RESET JIB BOOM UP/DOWNJOYSTICK DEFAULTS is displayed.5 Press the plus button to select YES, thenpress the enter button.6 Do not start the engine.7 Locate the jib boom joystick.8 Move the jib boom joystick full stroke in the updirection and hold for 5 seconds, then return tothe center or neutral position.9 Move the jib boom joystick full stroke in thedown direction and hold for 5 seconds, thenreturn to the center or neutral position.Result: The alarm at the ground controlsshould sound for a successful calibration.
