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<b>Note:</b> This demonstration displays the steps to remove a core from a cast WBIC.

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For details of removing the core from a fabricated WBIC, refer to the Fabricated WBIC Core Removal section of this module.

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Before replacing the core, check for leaks from the tell-tale holes to ensure that there is no water leak.

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Typical steps to remove the cast WBIC core are as follows:

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<b>Warning:</b> To prevent personal injury and potential equipment damage, ensure that the engine cannot be started before removing, installing, or adjusting any components.

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Open the BS to prevent starting attempts.

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Also, place the FPB and the LCCB in the OFF position.

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Apply a warning tag to the EC switch.

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<b>Warning:</b> If the locomotive is equipped with AESS, the diesel engine may start without operator action.

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Exercise caution when working around the radiator cab.

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Ensure that AESS is disabled before performing any maintenance procedures on the locomotive.

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Failure to do so may result in death or serious personal injury.

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1. Shut down the diesel engine. 

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2. De-pressurize the cooling water system by holding the water fill assembly vent valve open for approximately one minute.

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3. Remove the maintenance access panel underneath the wing of the radiator cab, then set the panel aside and retain the hardware.

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<b>Note:</b> Ensure that the radiators contain no water.

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4. Drain the water from the cooling system, below the level of the cast WBIC.

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5. From the A-side (right side) of the locomotive:

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a. Open, but do not remove, the access door.

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b. Remove the drain line and the fitting from the drain pipe.

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c. Remove the 28, 3/8-inch hex bolts from the outer end fastening plate that secures the intercooler core and attached end cover to the shell, and save all hardware for re-use.

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d. Remove the outer end fastening plate and discard the O-ring.

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<b>Note:</b> If desired, the intercooler core end cover may also be removed by removing the 16 Allen bolts; however, the cover may remain attached during the cast WBIC core removal and installation.