| Umkhiqizo | Uhlobo | Uhlobo | Kuyasebenza |
| I-Sjec | Isixhumanisi esingu-17/isixhumanisi esingu-19/isixhumanisi esingu-24/isixhumanisi esingu-32 | PA6.6-30GF | Izitezi ezizihambelayo ze-Sjec |
Ukuze kuqinisekiswe ukusebenza okuvamile kweketanga elihlikiwe, kudingeka ukulungiswa nokugcinwa njalo. Lokhu kuhlanganisa ukugcoba iketanga ngezikhathi ezifanele ukuze kuncishiswe ukungqubuzana nokuguguleka. Udinga futhi ukuhlola ukucindezelwa kweketanga ukuqinisekisa ukuthi lingaphakathi kwebanga elifanele. Hlola njalo iketanga ukuthi aligugulekile yini bese ulishintsha uma kudingeka.