The lug height of a new rubber track is 23,0 mm (0.9 in).
To find the percentage of wear on a excavator track, measure the height of the lug by placing a straight edge across the top of three lugs and measure the distance from the base of the track to the bottom of the straight edge [Figure 30-20-1].
Divide this measurement by the new track height and multiply by 100. This will give the percentage of track lug left.
Example: lug height 20,0 mm (0.787 in)
78% of the track lug is remaining with 22% wear on the track lugs.
