July 2019 Service and Repair ManualControl SystemPart No. 1286829GT S-40 XC • S-45 XC • S-40 TraX • S-45 TraX 239 Start a timer and activate the machine functionthat needs to be adjusted. Using the groundcontrol functions is the same as asking for fulljoystick deflection at the platform.10 Record the time it takes for that function tocomplete the ramp.11 Compare the machine function time with thefunction times listed in Specifications,Performance Specifications. Determinewhether the ramp time needs to increase ordecrease.12 Adjust the parameter in the ground display toachieve the proper ramp time.Note: Refer to 1-7 Display Module Menus for ramprates.How to Adj ust the Joystick Thr es hol d SettingHow to Adjust the JoystickThreshold SettingThe threshold setting of a joystick is the minimumoutput at which a function proportional valve canopen and allow the function to operate.The boom function threshold current should beoperating at near zero speed, smoothly with novibrations.Note: Perform this procedure with the boom in thestowed position.1 Enter the Service Mode.2 Press the SETTINGS button above the displayscreen.3 Select SPEEDS from the display screen.4 Navigate to the desired function's Thresholdsetting.5 Select the desired setting to change and pressOK.6 In the parameter adjustment screen, use thedisplay buttons to change the parameter. Notethat the factory default speed is considered100% for threshold values.7 Scroll and press OK. The change is effectiveimmediately.8 Switch the machine control to platform controland start the engine from the platformcontrols..9 Using the joystick, verify that the functionengages smoothly and without suddenmovement or excessive joystick dead spots.10 Adjust the parameter in the ground display toachieve a smooth function threshold.
