1. Ifakwe izindandatho ezinamaphiko, ukuzungeza kwamahhala.
2. Indlela yokukhiya ngokuphepha iqinisekise ukuthi i-clamp ayisheleli.
3. Ungawasebenzisi ama-clamp ezindaweni eziqukethe umhwamuko ovuthayo, uketshezi, amagesi noma uthuli oluvuthayo noma imicu.