3 - 40 S-80 • S-85 • S-80X Part No. 122985Section 3 • Scheduled Maintenance Procedures February 2012CHECKLIST C PROCEDURESC-3Test the Platform OverloadSystem (if equipped)Genie specifications require that this procedure beperformed every 500 hours or six months,whichever comes first.Testing the platform overload system regularly isessential to safe machine operation. Continued useof an improperly operating platform overloadsystem could result in the system not sensing anoverloaded platform condition. Machine stablitycould 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. Start theengine and level the 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 aninaccurate test.4 Using a suitable lifting device, place a testweight equal to that of the available capacity atone of the locations shown.Refer to Illustration 1.Result: The platform overload indicator lightsshould be off at both the ground and platformcontrols and the alarm should not sound.Result: The platform overload indicator lights areon and the alarm is sounding. Calibrate theplatform overload system. Refer to RepairProcedure 2-4,How to Calibrate the PlatformOverload System (if equipped).Illustration 15 Carefully move the test weight to eachremaining location. Refer to Illustration 1.Result: The platform overload indicator lightsshould be off at both the ground and platformcontrols and the alarm should not sound.Result: The platform overload indicator lights areon and the alarm is sounding. Calibrate theplatform overload system. Refer to RepairProcedure 2-4,How to Calibrate the PlatformOverload System (if equipped).6 Using a suitable lifting device, place anadditional 50 lbs / 23 kg of weight onto theplatform.Result: The alarm should sound and the engineshould shut off. The platform overload indicatorlights should be flashing at both the ground andplatform controls.Result: The alarm does not sound, the enginedoes not shut off and the platform overloadindicator lights are not flashing. Calibrate theplatform overload system. Refer to RepairProcedure 2-4,How to Calibrate the PlatformOverload System (if equipped).Note: There may be a 2 second delay before theoverload indicator lights flash, the alarm soundsand the engine shuts off.
