1. Lub hauv paus tseem ceeb ntawm lub zog hluav taws xob thiab kev sib hloov hydraulic tau nruab nrog cov khoom tuaj txawv teb chaws;
2. Yeem tau tus kheej thauj khoom thiab tshem tawm kev ua haujlwm, yooj yim rau disassemble thiab sib sau ua ke;
3. Cov khoom tawg yooj yim thiab siv tau ntawm lub tshuab tag nrho yog cov khoom siv tus kheej, thiab cov qauv tsim tshwj xeeb, uas yooj yim rau kev saib xyuas thiab tus nqi qis;