track). Use an outside caliper and ruler, as shown in
figure 6-20. Measure the outside of the bushing where
it shows the most wear and compare it to the
Measure track pitch with a ruler or tape measure
after tightening the track to remove any slack, as
shown in figure 6-21.
Should the bushing wear or track length be
excessive, remove the track for rebuilding unless
facilities and time do not permit. Rebuilding a track
will nearly double the useful life of the pin and
Figure 6-20.Bushing wear measurement.
Figure 6-21.Track pitch measurement.
The most common track shoe is the grouser shoe
shown in figure 6-22. This shoe is standard on all
crawler-mounted dozers. The extreme service track
shoe (fig. 6-23) is equipped on crawler-mounted
dozers that operate primarily in rocky locations, such
as rock quarries and coral beaches. Notice the grouser,
or raised portion of the shoe, is heavier than the
standard grouser shoe.
Another shoe common to track-mounted front-end
loaders is the multipurpose shoe. This shoe has three
grousers that extend a short distance above the shoe
and are equally spaced across its face. The multi-
purpose shoe allows more maneuverability with less
wear on the track and track frame components.
The grouser absorbs most of the wear and
its condition indicates when the track needs
replacement or overhaul.
Figure 6-22.Standard grouser shoe.
Figure 6-23.Extreme service track shoe.