1. Ukulawula ukukhanya
2. Ukuncibilika okwenziwa ngesandla/okuzenzakalelayo ngokucisha
3. Isikhathi/izinga lokushisa.ukusetha ukuqeda ukuncibilika
4. Qala kabusha ukubambezeleka
5. Okukhiphayo okudluliselwe :1HP(compressor)