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Ukuhlolwa nokulungiswa kwekhanda lombhobho

(1) Hlola imbobo yombhobho kanye nesiphetho sekhanda lombhobho womjovo ngengilazi yokukhulisa, bese ulenza liqhathanise nekhanda elisha lombhobho. Uma ikhanda lombhobho linenye yalezi zimo ezilandelayo kufanele lichithwe: (1) ukuguga, lokhu kugqoka kuzokwenzeka ngaphakathi kwekhanda lombhobho, ngakho-ke, ukuhlolwa kufanele kwenziwe ngaphakathi nangaphandle. (2) Ukugqwala, umonakalo ovuthayo kanye nesenzakalo sokushisa ngokweqile, lesi simo ngokuvamile sibangelwa okuqukethwe okuphezulu kwamanzi, i-asidi nesibabule kuphethiloli noma okubangelwa umsebenzi ogcwele kakhulu. (3) Ukwandiswa noma ukuguqulwa kwe-jet hole kubangelwa ukusetshenziswa kwe-drill noma amanye amathuluzi okuhlanza i-jet hole kanye nokusetshenziswa isikhathi eside kakhulu. Qaphela ukuthi usayizi wombhobho akumele ushintshwe.

(2) Hlola ukuma kwendawo yokuxhumana ye-plunger ekhanda lombhobho. Khetha i-plunger entsha bese uyipenda eluhlaza okwesibhakabhaka sasePrussian. Faka i-plunger ekhanda le-nozzle bese uvula ama-90°. Umbhobho ungasetshenziswa kabusha uma indawo yokuxhumana ye-plunger iqhubekayo futhi ithatha amaphesenti angama-40 wendawo ezungeze ikhoni yekhanda lombhobho noma imbobo ye-plunger. Ngesikhathi esifanayo, i-plunger kufanele ixhumane nendawo yekhoni engu-l/4 yekhanda le-nozzle kuyo yonke indawo yekhoni. Ikhanda lombhobho obuso bayo bokuthintana bungaphansi kwe-1/4 yendawo yokugcina yekhanda lombhobho alikwazi ukusetshenziswa. Uma indawo yokuxhumana yekhanda le-nozzle isekupheleni, indawo yayo yokuxhumana kufanele ibe nkulu kune-1/2 yendawo yekhoni. Kufanele kusetshenziswe umhloli ukuhlola ukuvuza kwamafutha ombhobho ne-plunger.