Umshini wokuqhuma isihlabathinjengomshini obalulekile ekukhiqizeni izimboni, akugcini nje ngokunciphisa ukusetshenziswa kwabasebenzi, ukunciphisa izindleko zokukhiqiza, kodwa futhi kwenza ukukhiqizwa kwezimboni kube lula futhi kusheshe, kepha uma isimo sokusebenza siside, sizofushanisa impilo yensizakalo, ngakho-ke yenza umsebenzi omuhle Isondlo kubalulekile, futhi isingeniso esilandelayo ulwazi yesondlo umshini ukuqhumisa isihlabathi.
Ukugcinwa kwe-umshini wokuqhuma isihlabathiingahlukaniswa ngesondlo sanyanga zonke, ukugcinwa kweviki, kanye nokugcinwa okujwayelekile. Isinyathelo sesondlo ukusika umthombo wegesi, ukwenza ukuma kokuma, ukususa umlomo wombhobho, ukuhlola nokuhlanza igobolondo lokuhlunga, ukuhlanza inkomishi yamanzi.
Ukuhlola amandla, hlola ukuthi kuvamile yini, nesikhathi esiphelele sokukhishwa, hlola ukuthi ngabe i-valve seal evaliwe iyaguga futhi iyaqhekeka, uma lokhu kwenzeka, kuyadingeka ukuyishintsha.
Ukuhlola njalo uhlelo lokuphepha ukugwema izingozi zokuphepha ngesikhathi sokusebenza ukuqinisekisa ukusebenza okujwayelekile kwefayela le-umshini ukuqhumisa.