Iipayi eziphezulu zoxinzelelo lwe-hydraulic zizinto ezibalulekileyo kwizicelo ezahlukeneyo zeshishini, isebenza njengemizila yokuhambisa ulwelo lwe-hydraulic phantsi koxinzelelo oluphezulu. Ezi yibhobho zenzelwe ukumelana neemeko ezigqithisileyo, ziyenza ibalulekileyo kumatshini afuna ukuhanjiswa okuthembekileyo ukusebenza. Ukuqonda iimpawu kunye nokusetyenziswa koxinzelelo oluphezulu loxinzelelo