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Figure 5
Figure 6
4.2
Measuring Headwear
Headwear is the deterioration of the top of the profile as a result of the friction between
moving wheel and the rail.
To measure headwear, again ensure the gauge is fully in contact with the rail, please push
the knob or the sliding mechanism directly and not the body of the gauge as this can
cause the gauge to lockup, then the vertical headwear slide can be adjusted until the
measuring pin is touching the top of the rail. The headwear scale on the side of the gauge
will display the measurement for that position.
Headwear is also displayed in mm worn since the rail was new.
6
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