Section 3 • Scheduled Maintenance Procedures3 - 50 S-100 • S-105 • S-120 • S-125 Part No. 102916January 201611 Lift the test weights off the platform floor usinga suitable lifting device.Result: The platform overload indicator light andalarm should turn off at both the ground andplatform controls.Note: There may be an approximate 2 seconddelay before the overload indicator light and alarmturn off.12 Test all machine functions from the groundcontrols.Result: All ground control functions shouldoperate normally.13 Turn the key switch to platform control.14 Test all machine functions from the platformcontrols.Result: All platform control functions shouldoperate.Note: If the platform overload system is notoperating properly, refer to Repair Procedure,Calibrate the Platform Overload System (ifequipped).CHECKLIST C PROCEDURESIllustration 17 Carefully move the test weights to eachremaining location in the platform.Result: The alarm should sound.The platform overload indicator light should beflashing at the platform controls andplatform overload should be displayed on theLCD screen at the ground controls.Result: The alarm is not sounding and theplatform overload indicator light is not flashingand platform overload is not displayed on theLCD screen at the ground controls. Calibratethe platform overload system. Refer to RepairProcedure, Calibrate the Platform OverloadSystem (if equipped).Note: There may be an approximate 2 seconddelay before the overload indicator light turns onand the alarm sounds.8 Test all machine functions from the platformcontrols.Result: All platform control functions should notoperate.9 Turn the key switch to ground control.10 Test all machine functions from the groundcontrols.Result: All ground control functions should notoperate.Note: Machine functions should still operate withauxiliary power at the ground controls.