Loaʻa nā ʻāpana o lalo o nā kaʻa he track rollers, carrier rollers, idler, sprocket a me ka hui kāmaʻa track. E like me nā ʻāpana i koi ʻia no ka hana excavator maʻamau, pili lākou i ka hana o ka excavator a me ka hana huakaʻi. I ka wā e hana ai no ka lōʻihi o ka manawa, loaʻa kēia mau mea i kahi pae o ka lole a me ka waimaka. Inā lawe ʻoe i mau minuke e hana i ka mālama ʻana i kēlā me kēia lā i kēia mau ʻāpana, hiki iā ʻoe ke hoʻonui i ko lākou ola lawelawe. He aha kāu e ʻike ai e pili ana i ka mālama ʻana i ka undercarriage?