Isihlilingi esiphakamisayo esilahlekelwe umbala waso siyinto evamile ezindaweni zokusebenza. Ama-rigger amaningi ayazibuza: ingabe kusaphephile ukusebenzisa? Impendulo emfushane-ngokwezindinganiso zemboni-cha. Ukufiphala kombala kuyinkomba ebonakalayo yokuwohloka kwe-ultraviolet (UV), eyenza buthaka imicu yokwenziwa futhi ibeke engcupheni amandla okuthwala umthwalo wesihlilingi. Lo mhlahlandlela uhlola ukuthi umbala osuphelile usho ukuthini ekuphepheni kwesihlilingi, ukuthi ungahlukanisa kanjani ukulimala kwe-UV kwezinye izinhlobo zokushintsha umbala, kanye nemibandela ethile yokuthatha umhlalaphansi echazwe kumithetho ye-ASME B30.9 kanye ne-Washington Administrative Code (WAC). Kubaphathi bokugebenga kanye nezingcweti zezokuphepha, ukuqonda okushiwo isihlilingi esifiphele kubalulekile ekuvimbeleni ukwehluleka okuyinhlekelele.