Section 3 • Scheduled Maintenance ProceduresJanuary 2013Part No. 84793 GS-84 • GS-90 3 - 35CHECKLIST D PROCEDURES4 Disengage the drive hubs by turning over thedrive hub disconnect caps on each wheel hub atthe non-steer end.5 Manually rotate each wheel at the non-steer end.Result: Each wheel should rotate with minimumeffort.6 Engage the drive hubs by turning overthe hub disconnect caps. Rotate each wheel tocheck for engagement. Raise the machine andremove the blocks. Lower the machine.Collision hazard. Failure to engagethe drive hubs could result in deathor serious injury and propertydamage.7 Chock the wheels at the non-steer end of themachine.8 Center a lifting jack of ample capacity(20,000 lbs / 10,000 kg) under the drive chassisbetween the wheels at the steer end.9 Lift the wheels off the ground and place blocksunder the drive chassis for support.Crushing hazard. The chassiscould fall if not properly supported.10 Disengage the drive hubs by turning over thedrive hub disconnect caps on each wheel hub atthe steer end.11 Manually rotate each wheel at the steer end.Result: Each wheel should rotate with minimumeffort.12 Engage the drive hubs by turning overthe hub disconnect caps. Rotate each wheel tocheck for engagement. Raise the machine andremove the blocks. Lower the machine.Collision hazard. Failure to engagethe drive hubs could result in deathor serious injury and propertydamage.D-2Check the Free-wheelConfigurationGenie specifications require that this procedure beperformed every 1000 hours or annually, whichevercomes first.Proper use of the free-wheel configuration isessential to safe machine operation. Thefree-wheel configuration is used primarily for towing.A machine configured to free-wheel without operatorknowledge may cause death or serious injury andproperty damage.Collision hazard. Select a work sitethat is firm and level.Component damage hazard. If themachine must be towed, do notexceed 2 mph / 3.2 km/h.1 Chock the wheels at the steer end of themachine.2 Center a lifting jack of ample capacity(20,000 lbs / 10,000 kg) under the drive chassisbetween the wheels at the non-steer end of themachine.3 Lift the wheels off the ground and place blocksunder the drive chassis for support.Crushing hazard. The chassiscould fall if not properly supported.disengaged positionengaged position
