Press the hand wheel is now as the most manuel control, ani kɛrɛnkɛrɛnnenya la drilling kɛcogo la fana ye dilancogo ɲuman ye, bawo a y’a jateminɛ ko a kunba ye a kuntilenna, a sigiyɔrɔ ani a baarakɛcogo ye, o ka nɔgɔn, tiɲɛ na, install kunba ye ka switch baarakɛcogo ɲɛnabɔ.
Manuel control valve dabɔra walasa ka fiɲɛ sɔrɔli bali walima ka a sababu tiɲɛ, a kɛcogo jɔnjɔn ye: Kɔrɔtɔko nɛnɛma siraw ani kasaara sariyaw; Filanan ye control valve circuit gɛlɛya ye; A laban na, nin kuma fɔlen ninnu bɔli kɛnɛ kan, o ye timbre wheel (bololanɛgɛ) kuntilenna jɔnjɔnw ye walima ka baara kɛ ni bolokɔni ye walasa ka baarakɛcogo jɔnjɔnw kɔlɔsi.
