Service and Repair Manual June 2017Boom Components72 SX-180 Part No. 126849728 Wait approximately 20 seconds and turn themachine off by pressing the red EmergencyStop button in.29 Remove the fastener that was temporarilyinstalled. Close the control box door and installthe door retaining fasteners.Note: When the control box door is closed, thecalibration toggle switch is automatically activatedto exit out of calibration mode.30 Pull out the red Emergency Stop button. Startthe engine and lower the boom to the stowedposition. Be sure there are no calibration faultsshown on the display.4-8Boom Length SensorHow to Calibrate the PrimaryBoom Length SensorNote: Perform this procedure with the machine ona firm, level surface with the axles extended.Note: The turntable level sensor must be calibratedprior to calibrating the primary boom.Note: LTB1LO and LTB1LS are calibrated at thesame time.Note: Primary boom angle must be calibratedbefore calibrating boom length.Note: A kit is available through Genie ProductSupport (Genie part number 58351). This kitincludes a digital level with a magnetic base andcable harnesses.Note: Platform leveling is set to default parametersto avoid platform out of level faults duringcalibration.Note: If the calibration flags between SCON andTCON do not agree after calibration, a crosscheckfault is generated and recorded and the affectedboom function is inhibited.
