Page 14410. Connect one meter test lead to Wire 18 removed fromthe stud connector. Connect the other meter test lead toa clean frame ground. INFINITY should be measured.If CONTINUITY is measured, repair or replace Wire 18between the stud connector and the J1 Connector.RESULTS:Refer to flow chart.PROCEDURE: (SINGLE CYLINDER)1. Set a VOM to measure resistance.2. Remove Wire 18 from the in-line bullet connector.Disconnect the J1 Connector from the printed circuitboard.3. Verify the continuity of Wire 18. Connect one meter testlead to Wire 18 removed from the stud connector orbullet connector. Connect the other meter test lead toPin Location J1-4. CONTINUITY should be measured.If CONTINUITY is not measured, repair or replace Wire18 as needed.RESULTS:Refer to flow chart.teSt 79 – teSt eXerciSe FunctionDISCUSSION:The following parameters must be met in order for theweekly exercise to occur:• AUTO-OFF-MANUAL switch set to AUTO.PROCEDURE: 8kW1. Set the AUTO-OFF-MANUAL switch to MANUAL. Thegenerator should start. Set AUTO-OFF-MANUAL switchback to AUTO. Verify that AUTO-OFF-MANUAL switchhas been in AUTO for weekly exercise to function.2. Hold the Set Exercise switch until the generator starts(approximately 10 seconds) and then release. All ofthe red LEDs will flash for approximately 10 secondsand then stop. The generator will start and run forapproximately 12 minutes and then shutdown on it’sown. The exerciser will then be set to start and run atthat time of that day each week. If the unit does notstart, replace the circuit board.PROCEDURE: 10kW-20kWnote: make a record of the date and time thegenerator is set to exercise.1. Record the current date and time of the unit.2. Press the “ESC” key till the main menu is displayed.3. Press the right arrow key till a line is present under “EDIT”.4. Press “Enter”.5. Press the right arrow key until “EXERCISE TIME/DAY” isdisplayed.6. Press “Enter”.DATE AND TIMEMAINMENUEDITREADY TO RUN1 2 / 1 0 / 0 8 0 9 : 3 0 M o nFigure 47. The Date and Time, and Main MenuScreens7. Adjust exercise time to about 3 to 4 minutes ahead ofthe date and time noted in Step 1.8. Press “ESC” until “READY TO RUN” is displayed. TheAUTO-OFF-MANUAL switch must be in AUTO for theunit to exercise.9. Watch the generator display and note the time. When thedate and time reaches the time that was programmedfor exercise, the unit will display "Running in Exercise" ifthe exercise feature is working properly.RESULTS:1. In all models, if the unit starts in MANUAL, but fails toexercise without any ALARMS present, replace theprinted circuit board.teSt 80 – check crankinG and runninGcircuitSDISCUSSION:This test will check all of the circuits that are “HOT”with battery voltage and which could cause the MainFuse to blow.Part 4 DC CONTROLsEctioN 4.4DiaGNostic tEsts0G9266revA.indd 144 10/15/2008 11:28:22 AM
