Air Brakes and Train Handling Rules - Alaska Railroad

68 EOT Telemetry DevicesA. Mounting the Large EOT UnitFollow these precautions when mounting the large EOT unit on thetrailing coupler of the last car:1. Make sure the EOT unit is mounted securely to the coupler andcannot be damaged by car-mounted equipment, such as swingingchains or air hoses.2. Make sure the angle cock on the last car is open.B. Removing and Installing Batteries On the Large EOT UnitTransmitter Batteries. Follow these steps to remove and installlarge EOT unit transmitter batteries:1. Open the battery compartment lid.a. Move the clamping screw to the horizontal position, thenrelease the two retaining latches.b. Lift the lid fully open.2. Remove the thumbscrew retainer.3. Gently remove the battery by pulling it straight out from itscontacts.4. Install a fully charged battery by pushing it onto its guide pinsuntil the contacts are fully made.5. Replace the thumbscrew retainer.6. Replace the battery compartment lid.Marker Light Batteries. Follow these steps to remove and installlarge EOT unit marker light batteries:1. Open or remove the cover to the marker light battery compartment.a. On newer units, the cover swings open on its hinges. Raisethe cover slightly and withdraw the pin at the lower left sideabout 1/2 inch. Then swing the cover open.June 1, 1996 ARRC Air Brakes and Train Handling Manual 68-17