Genie Z-30/20N Service Manual

Also see for Z-30/20N: Maintenance manual Maintenance manual Service manual Service and repair manual Service manual

Contents

Genie Z-30/20N Service Manual Manual pdf 95 page image

Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N 4 - 45June 2011 Section 4 • Repair ProceduresREV A10-1Motor 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 Fault Code section of thismanual for a list of fault codes and additionalinformation. There are no adjustments needed onthe drive joystick controller. For further informationor assistance, consult the Genie Industries ServiceDepartment.How to Test the Motor ControllerNote: Use the following procedure to test the motorcontroller. If the motor controller is found to befaulty, note which test failed and which fault code(if any) was present at the time of failure.1 Turn the key switch to the off position anddisconnect the battery packs from the machine.2 Tag and disconnect all power cables from themotor controller.Electrocution/burn hazard. Contactwith electrically charged circuitscould result in death or seriousinjury. Remove all rings, watchesand other jewelry.3 Press the release tab on the motor controllerharness connector and remove the motorcontroller harness connector from the motorcontroller.4 Set an ohmmeter to diode test mode.5 Connect the leads from an ohmmeter to testeach motor controller terminal combinationlisted below and check the forward / reversebias (diode test).Result: All desired results must be within thespecified range. If any test has a result notwithin the specified range, replace the motorcontroller.Forward Bias:Test Desired resultPositive Lead Negative LeadM- B+ 0.4 to 0.45B- M- 0.4 to 0.45F1 B+ 0.45 to 0.5F2 B+ 0.45 to 0.5B- F1 0.45 to 0.5B- F2 0.45 to 0.5Reverse Bias:Test Desired resultPositive Lead Negative LeadB+ M- Rises to .0L VM- B- Rises to .0L VB+ F1 Rises to .0L VB+ F2 Rises to .0L VF1 B- Rises to .0L VF2 B- Rises to .0L VMotor Controller