Section 3 • Scheduled Maintenance ProceduresJanuary 2012Part No. 228901 GS-30 • GS-32 • GS-46 • GS-47 3 - 13CHECKLIST B PROCEDURESB-3Inspect the Electrical ContactorGenie requires that this procedure be performedevery 250 hours or quarterly, whichever comesfirst.Maintaining the electrical contactor in goodcondition is essential to safe machine operation.Failure to locate a worn or damaged contactorcould result in an unsafe working condition andcomponent damage.1 At the ground controls, turn the key switch tothe off position.2 Push in the red Emergency Stop button at theground controls to the off position.3 Open the battery tray and disconnect theAnderson connector.4 Locate the electrical contactor mounted on thefuse bracket.5 Visually inspect the contact points of thecontactor for the following items:• Excessive burns• Excessive arcs• Excessive pittingElectrocution/burn hazard. Contactwith hot or live circuits could resultin death or serious injury. Removeall rings, watches and otherjewelry.Note: Replace the contactor if any damage isfound.B-4Inspect the Tires and Wheels(including castle nut torque)Genie requires that this procedure be performedevery 250 hours or quarterly, whichever comesfirst.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, punctures and unusual wear.2 Check each wheel for damage, bends andcracks.3 Remove the cotter pin and check each castlenut for proper torque. Refer to Section 2,Specifications.Note: Always replace the cotter pin with a new onewhen removing the castle nut or when checkingthe torque of the castle nut.4 Install a new cotter pin. Bend the cotter pin tolock it in place.