Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 4 - 11Service Manual - First Edition Section 4 - Scheduled Maintenance ProceduresB-3Inspect the Tires and Wheels(including castle nut torque)Maintaining the tires and wheels in goodcondition is essential to safe operation and goodperformance. Tire and/or wheel failure could resultin a machine tip-over. Component damage mayalso result if problems are not discovered andrepaired in a timely fashion.1 Check the tire surface and sidewalls for cuts,cracks or unusual wear.2 Check each wheel for damage, bends andcracks.3 Remove the cotter pin and check each castlenut for proper torque.4 Install a new cotter pin.Always replace the cotter pin witha new one when removing thecastle nut or when checking thetorque of the castle nut.Tires and wheelsCastle nut torque, dry 300 ft-lbs 405 NmCastle nut torque, lubricated 225 ft-lbs 305 NmB-4Test the Key SwitchProper key switch action and response is essentialto safe machine operation. The machine can beoperated from the ground or platform controls andthe activation of one or the other is accomplishedwith the key switch. Failure of the key switch toactivate the appropriate control panel could causea hazardous operating situation.1 Pull out the Emergency Stop button to the ONposition at both the ground and platformcontrols.2 Turn the key switch to platform control.3 Check the platform up/down function from theground controls.Result: The machine functions should notoperate.4 Turn the key switch to ground control.5 Check the machine functions from theplatform controls.Result: The machine functions should notoperate.6 Turn the key switch to the OFF position.Result: No machine functions should operate.TABLE B PROCEDURES