Figure 11-6.-Standard grouser shoe.Figure 11-4.—Bushing wear measurement.Figure 11-7.—Extreme service track shoe.Figure 11-5.—Track pitch measurement.track pitch with a ruler or tape measure after tighteningthe track to remove any slack, as shown in figure 11-5.TRACK SHOES.— The most common track shoeis the grouser shoe, as shown in figure 11-6. This shoeis standard on crawler-mounted dozers. The extremeservice track shoe shown in figure 11-7 is equipped oncrawler-mounted dozers that operate primarily in rockylocations, such as rock quarries and coral beaches.Notice the grouser, or raised portion of the shoe, isheavier than the one on the standard grouser shoe.NOTE: The grouser absorbs most of the wear andits condition can indicate when a track needs replace-ment or overhaul.Track FrameThe track frame serves as a framework and supportfor the track assembly, rollers, front idler, recoil spring,and adjusting mechanism.TRACK FRAME ROLLERS.— Two types oftrack frame rollers are used on tracked equipment: thoselocated on the lower portion of the track frame, whichsupport the weight of the dozer, and those mountedabove the track frame, which support the track, as itpasses over the track frame assembly.11-3
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