Dozers maintain an appropriate degree of tension

If the tension is excessive, the guide wheel spring tension acting on the track pin and pin sleeve, pin and pin sleeve outer circle has been subjected to high compressive stress, during operation of pins and bushings produce premature wear, while the guide pulley tensioner spring will also act on the guide shaft and sleeve, with great surface contact stress, which makes the guide wheel set easily ground into a semicircle, swamp crawler bulldozer with blade steadily from easy stretch, and will reduce the mechanical transmission efficiency, waste engine passed wheels and track power.
If the tension is too loose mechanically driven bulldozer, tracked easily from the guide wheels and rollers, and lose track of the correct, so fluctuations in running track, beat, impact, causing abnormal wear of the guide wheel and the idler.