Section 3 • Scheduled Maintenance Procedures June 20123 - 28 GS-30 • GS-32 • GS-46 • GS-47 Part No. 228901Checklist C ProceduresC-1Test the Platform OverloadPressure Transducer andPlatform Height Sensor(if equipped)Genie specifications require that this procedure beperformed every 500 hours or six months,whichever comes first OR when the machine failsto lift the maximum rated load.Testing the platform overload pressure transducerand platform height sensor regularly is essentialto safe machine operation. Continued use of animproperly operating platform overload pressuretransducer or platform height sensor, could resultin the system not sensing an overloaded platformcondition. Machine stability could be compromisedresulting in the machine tipping over.Note: Perform this procedure with the machine ona firm, level surface the is free of obstructions.1 Turn the key switch to ground control and pullout the red Emergency Stop button to the onposition at both the ground and platformcontrols.2 Raise the platform 7 to 8 feet / 2.1 to 2.4 m.3 Lift the safety arm, move it to the center of thescissor arm and rotate down to a verticalposition.4 Lower the platform onto the safety arm.Crushing hazard. Keep handsclear of the safety arm whenlowering the platform.5 At the ground control, turn the key switch to theoff position and push in the red EmergencyStop button to the off position.Pressure Transducer6 Working at the barrel end of the lift cylinder,follow the pressure transducer cable down thescissor stack to its end point, at the chassisdeck.7 Using the positive post of a multimeter probe,securely fit the post into pin C of the pressuretransducer cable rubber boot. Refer to theillustration below.8 Using the negative post of a multimeter probe,securely fit the post into pin B of the pressuretransducer cable rubber boot. Refer to theillustration below.9 Turn the key switch to ground control and pullout the red Emergency Stop button to the onposition.10 Using the multimeter, measure the voltagereading of the pressure transducer at pinC and B.GS-1532, GS-1932, GS-2032, GS-2632, GS-2046,GS-2646 and GS-3246Result: The voltage reading of the pressuretransducer is between 1V and 5V. The pressuretransducer is functioning properly.Result: The voltage reading of the pressuretransducer is between 0V and 1V. The pressuretransducer is not functioning properly. Replacethe pressure transducer. Refer to RepairProcedure 9-9,How to Remove the PressureTransducer (if equipped).
