﻿GET_GEVOMechL2_06_01_01_73 - ANIMATION Screen
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Summarize the major steps to remove and install the truck and its major components.

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Traction Motor Combo Removal

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1. Position the traction motor combo to be removed over a single-axle drop table.

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2. Set the locomotive wheel brakes and chock the wheels on the truck not being worked on, then manually release the brakes on the wheels by closing the cut-out cock in the air line.

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3. Disconnect all power cables, the motor ground cable, the speed sensor cable, and, if equipped, the bearing temperature sensor cables.

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4. Remove the pins from the slack adjusters and shorten the slack adjusters to the shortest length.

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5. Remove the brake shoes by removing the keys from the brake heads.

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6. Disconnect the traction motor air duct from the top of the traction motor.

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7. Remove the pedestal liner retaining bolts, axle journal bearing housing, and any free pedestal liners.

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8. Disconnect the nose suspension for an AC traction motor or remove the nose suspension for a DC traction motor.

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9. In a DC traction motor, check the suspension lugwear plates and, if excessively worn, replace the plates.

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10. Lower the drop table and place chocks over the rail and nip the securing bolts to secure the combo in place.

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11. Raise the drop table to compress the coil springs.

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12. Place a spring retaining strap around the truck frame, under the air piping and through the spring coils, then join the strap ends.

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13. Apply C-clamps on each wheel rim to prevent the housing from rotating during the traction motor combo removal.

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14. Raise the traction motor nose up to clear the nose suspension or the truck frame as the motor is lowered.

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15. Lower the drop table and tighten the coil spring retaining straps to remove any remaining slack.

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16. Lower the drop table until the traction motor combo clears the truck and remove any remaining truck pedestal liners.

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17. Move the traction motor combo from beneath the truck and locomotive.

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18. Lift the traction motor combo from the drop table and set it aside for cleaning, maintenance, or storage.

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Traction Motor Combo Installation

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1. Transfer the traction motor combo to the drop table, and place suitable blocking under the motor frame to raise the motor lugs.

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2. Position the drop table and the traction motor combo under the truck.

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3. Level the axle journal bearing housings, and apply C-clamps on each wheel rim below each side of the axle journal bearing housings.

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4. Raise the drop table and install the truck pedestal liners.

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5. Install the four axle journal bearing housing retainers on the truck pedestal legs.

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6. Remove the four coil spring retaining straps.

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7. Lower the hydraulic jacks and remove all wooden blocks from under the traction motor and the truck.

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8. Connect the nose suspension for an AC traction motor or install the nose suspension for a DC traction motor.

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9. Connect the traction motor air duct to the top of the motor.

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10. Lubricate the air duct bolts with a Wabtec approved Moly-based lubricant (84B565364A1) or light machine oil.

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11. Install the bolts and then torque to 50 to 55 lb.-ft. (68 to 75 Nm).

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12. Install the brake shoes and the slack adjustor pins, then adjust the slack adjusters.

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13. Connect all power cables, the motor ground cable, the speed sensor cable, and, if equipped, the bearing temperature sensor cables to their connections under the locomotive platform.

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14. Release and remove all jacks and chocks used to support or secure the truck and for traction motor combo removal.

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15. Activate the brakes by opening the truck cut-out cock.

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16. Check the level of lubricant in the gear case, and add lubricant as required.

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High Adhesion Truck Removal

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1. Chock at least two sets of truck wheels and release the hand brake.

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

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3. Disconnect the traction motor leads, ground cables and speed-sensor cables leading to each traction motor.

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4. Disconnect the ground cable between the truck and the platform.

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5. Disconnect the traction motor air ducts from the top of the traction motors, then cover the traction motor openings to prevent entrance of foreign material.

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6. If an axle alternator is installed on the truck being removed, disconnect the alternator cable from the junction box on the alternator, then coil and secure the cable so it will not be damaged.

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7. Disconnect all sander hoses from the sander brackets on the truck and disconnect the hoses for the flange lubricators if used.

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8. Disconnect the hand brake chain if the long-hood end truck is being removed.

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9. Remove the lateral and yaw shock absorbers.

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10. Remove both safety hooks from the truck frame.

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11. Raise the locomotive platform clear of the truck with jacks or crane, or lower the truck on a drop table.

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12. After the truck is removed from under the locomotive, cover the truck center-pin bearing to prevent contamination with dirt and other foreign materials.

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High Adhesion Truck Installation

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1. Space the trucks between traction pin bearing assemblies.

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2. Remove the temporary dust covers from the traction motor air duct openings.

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3. Inspect the traction motor air ducts between the locomotive platform and the truck and replace any air ducts that are cracked or torn.

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4. Coat the center pin on the underside of the locomotive platform with grease.

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5. Lower the platform onto the truck, then carefully mate the center pin with the center pin bearing.

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6. Install both safety hooks on the truck frame.

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7. Install the lateral and yaw shock absorbers.

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8. Connect the hand brake chain if the long-hood end truck is being installed.

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9. Install the hoses from the sand pipes on the platform to the sander brackets on the trucks.

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10. Connect the axle alternator cable to the junction box on the alternator if used.

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11. Install the traction motor air duct to each of the traction motors.

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12. Connect the ground cable between the truck and the platform.

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13. Connect the speed sensor cable, traction motor leads, and the ground cable at each traction motor.

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14. Connect the air brake hoses from the locomotive platform to the brake cylinder piping on the truck.

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15. Adjust the truck brake rigging.

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16. Check the traction motor rotation.
