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Air Brakes and Train Handling Rules - Alaska Railroad

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68 EOT Telemetry DevicesEOT Unit Troubleshooting ChartSymptom Probable Causes Remedies5. EOT reports are notreceived by LCU(continued).e. Faulty LCU or LCUantennaf. Interference on radiochannelg. Nearby metalstructures or trainsare affecting radiopath. Possible onlyon very long trains.Repair or replace.Try again.—h. Faulty EOT antenna Check if EOT h<strong>and</strong>leis broken. If it is,replace the EOT.Table 68-H. EOT Unit Troubleshooting Chart.68.9.2 Troubleshooting the LCUUse Table 68-I to diagnose <strong>and</strong> correct problems with the LCU.LCU Troubleshooting ChartSymptom Probable Causes Remedies1. LCU does not turnon (see Rule 68.8.6).a. Power source turnedoffb. Power cableunpluggedc. Display cableunpluggedd. Incorrect powersource (for example,72 volts DC)Turn the switch on.Plug in the powercable.Plug in the displaycable.Check if a fuse insidethe LCU has blown. Ifso, replace the fuse.68-36 ARRC <strong>Air</strong> <strong>Brakes</strong> <strong>and</strong> <strong>Train</strong> H<strong>and</strong>ling Manual June 1, 1996

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