﻿GET_GEVOMechL2_07_01_01_39 - STEP-BY-STEP Screen
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Typical steps to replace a brake shoe are as follows:

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<b>Note: </b>Ensure that the locomotive is on a straight, flat track before any adjustment or replacement is made.

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1. Chock at least two sets of truck wheels to prevent the locomotive from rolling in either direction.

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2. Release the hand brake, if set, and allow time for the truck wheels to seat against the wheel chocks.

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<b>Warning: </b>Ensure that the truck wheels are chocked and then release the hand brake before cutting out the brake cylinder air.

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Also, cut out the air to only one truck at a time.

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Unexpected motion can occur if the wheels are not chocked, or if the hand brake is set when the brake air is released, or if the air is cut off to both trucks at the same time.

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Unexpected rolling of the locomotive can cause serious personal injuries or death.

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3. With the locomotive secure, locate and close the truck air cut-out cock on the underside of the locomotive frame.

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<b>Note: </b>Close only the truck cut-out cock for the truck being worked on and exhaust air from the brake cylinders of that truck.

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4. Move the brake shoe as far as possible from the wheel tread, then remove the retaining key and worn brake shoe from the brake head.

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<b>Note: </b>Temporary removal of a pin is very helpful sometimes in securing adequate clearance.

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Also, the middle axle brake shoe retaining keys are installed from below for ease of maintenance.