1. Centralized tswj vaj huam sib luag: tag nrho cov kev tswj rau lub tshuab no yog centrally thiab yooj yim nyob rau hauv muab tawm sawv tswj.
2. Tswj vaj huam sib luag muab cov haujlwm tseem ceeb.
2.1 Ob-kauj ruam ntev zaub.
2.2 Rewinding ncej khiav ceev qhia, adjustrnent.
2.3 Rewinding ncej hloov jog tswj.
3. Qhov ntev ob-kauj ruam: qhov teeb tsa ntev no muab kev ua haujlwm zoo heev rau rewinding kom muab qhov tseeb rewinding ntev.
4. Cov ntawv tseem ceeb yog tuav ruaj khov rau ntawm pneumatic ncej.Nws muab esay ceev loading thiab unloading.
5. Nias ncej los ntawm pneumatic: pab kev ua haujlwm.Qhov ntawd tuaj yeem ua kom cov khoom zoo.