2. Kuzadza chikamu:
● Kuzadza muchina une chitubu-mhando mechanicha yekusimudza midziyo yekusimudzira mabhodhoro egirazi, yakakura kutakura tsigiro inoyangarara muvat uye kushandiswa kwegwara-tsvimbo mukutarisa kwechimiro, kune pre-kuvhara maficha.
● Mavharuvhu ekuzadza marefu-tubhu anogamuchirwa, aine CO2 achichinjana zvizere nemhepo mukati memabhodhoro egirazi, ine cylinder fluid level uye kumashure kudzvanywa kunodzorwa neinosiyana chiratidzo chakaenzana.Inokurumidza, yakagadzikana, yakarurama, kuva vacuum imwe panguva.