1. Muaj tsib lub hauv paus tseem ceeb: hydraulic system, cua siab system, lub tshuab nqus tsev, chav kaw lus thiab tsis siv neeg tswj qhov system.
2. Triple interlock tiv thaiv kom muaj kev nyab xeeb.
3. 100% X-ray tshuaj xyuas kom ntseeg tau cov khoom zoo.
4. Tsis siv neeg tswj tag nrho, tswj qhov kub thiab txias thiab siab, txuag hluav taws xob.