Feem ntau hais lus, crawler crane undercarriage ntim nrog rau ntau yam hauv qab no: cov khau khiav, cov menyuam yaus, cov menyuam yaus, cov yau, hlua, pin, bolt thiab txiv ntoo.
Nrog lub hom khoom, crawler crane tiav niam txiv txoj haujlwm.
Tag nrho cov qeeb qeeb yog them tus nqi tseem ceeb hauv cov crawler crane ua haujlwm. Yuav kom nce crawler crane cov kev pab cuam lub neej, cov txij nkawm ntawm lub caij nyoog khiav hauv crawler crane yuav tsum tau muab vim xim.