4 - 52 Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy Part No. 106488July 2004Section 4 • Repair ProceduresREV AMotor Controller11-1Motor ControllerThe drive motor controller is located under the non-steer end drive chassis cover. The drive motorcontroller can recognize machine drivemalfunctions and display controller fault codes byflashing a LED at the ground controls and on themotor controller. See the Troubleshooting sectionof this manual for a list of fault codes andadditional information. There are no adjustmentsneeded on the drive joystick controller. For furtherinformation or assistance, consult the GenieIndustries Service Department.How to Test the Motor ControllerUse the following procedure to testthe motor controller. If the motorcontroller is found to be faulty,note which test failed and whichfault code (if any) was present atthe time of failure.1 Turn the key switch to the off position anddisconnect the battery packs from the machine.2 Remove the chassis cover from the non-steerend of the machine.3 Tag and disconnect all power cables from themotor controller.Electrocution hazard. Contact withelectrically charged circuits couldresult in death or serious injury.Remove all rings, watches andother jewelry.4 Press the release tab on the motor controllerharness connector and remove the motorcontroller harness connector from the motorcontroller.5 Connect the leads from an ohmmeter to testeach motor controller terminal combinationlisted below and check for resistance.Result: All desired results must be 500 kilohmsor more. If any test has a result less than500 kilohms, replace the motor controller.Test Desired result(in kilohms)F1 to F2 500kΩ or moreF1 to B- 500kΩ or moreF1 to M- 500kΩ or moreF1 to B+ 500kΩ or moreF2 to B- 500kΩ or moreF2 to M- 500kΩ or moreF2 to B+ 500kΩ or moreB- to M- 500kΩ or moreM- to B+ 500kΩ or morePin 17 to B- 500kΩ or morePin 20 to B- 500kΩ or more
