﻿GET_GEVOMechL2_07_01_01_52 - STEP-BY-STEP Screen
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The four vertical hydraulic dampers, mounted between the truck frame and the axle bearing housing, provide damping forces as a result of vertical and lateral motions between axles and the truck frame.

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<b>Note: </b>The vertical hydraulic dampers are sealed by the manufacturer and cannot be refilled with fluid.

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Leaky vertical hydraulic dampers must be replaced.

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Inspect each vertical hydraulic damper for leakage or defective rubber mounting bushings.

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Typical steps to inspect the vertical hydraulic dampers are as follows:

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<b>Caution: </b>If one vertical hydraulic damper is found to be defective, replace both dampers on that axle as a matched set.

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Use only the recommended dampers on the truck to ensure a proper match with the locomotive load conditions.

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Replacement of only one damper or failure to use the recommended replacement dampers will create an incorrect damping condition, and may shorten the usable life of the dampers, the springs, and other load supporting the components.

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1. Clean the lower body of the primary damper.

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2. Visually inspect the lower body for clearly formed droplets of hydraulic fluid.

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3. Clean all the dampers around the locomotive and return to the first one to begin inspection.

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4. Inspect the damper mounting bushings for wear, binding, badly eroded or missing parts.

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5. Inspect the structure for cracks, missing sections, or severe beating.
