﻿GET_GEVOMechL2_10_01_01_40 - ANIMATION Screen
1
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Because the location of the alternator blower makes visual inspection of blower rotation difficult, you should perform the following test each time the alternator blower power leads are disconnected.

2
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Connect a long hose and a water tube manometer, or equivalent, to the pressure tap located at the six o'clock position on the main alternator.

3
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Monitor the pressure from the walkway.

4
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The pressure should exceed 3.0 inches (76.2 mm) of water when the locomotive is operating in Self-Load, Notch 8.

5
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A lower pressure indicates that the power leads are connected incorrectly or that there is a problem with the blower.

6
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If this happens, shut down the engine, inspect the terminal block, and correct the faulty connections.