﻿GET_GEVOMechL2_06_01_01_10 - ANIMATION Screen
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<b>Note:</b> For optimum performance, Engineering recommends that wheels should not vary more than (a) 0.0188 inches (1/2 tape) on the same axle, (b) 0.0750 inches (2 tapes) in the same truck, and (c) 0.3002 inches (8 tapes) under the same locomotive.

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The diameter of the wheel set is the average diameter of the two wheels on an axle.

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Keep the following points in mind when inspecting and maintaining wheels:

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To measure wheel diameter, flange thickness, and flange height, use a wheel gauge.

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The wheel diameter is measured by reading the scale on the long arm of the gauge in relation to the top of the witness mark on the wheel and using a conversion chart. 

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Each mark on the scale is a one-eighth inch increase in wheel diameter.

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The flange height is measured by reading the scale on the pivot arm in relation to the marks on the bend of the gauge.

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The zero mark on the pivot is used to determine the height.

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The flange thickness is measured by reading the scale on the pivot arm in relation to the 0 mark on the stationary arm. 

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The mark on the pivot is used to measure the thickness.


