Amagwiritsidwa ntchito pothetsa kapena kudzipatula makina a mapaipi, ma flanges akhungu amakhala ma disks opanda kanthu.Akayika bwino ndikuphatikizidwa ndi ma gaskets olondola, amatha kukwaniritsa chisindikizo chapadera chomwe chimakhala chosavuta kuchotsa pakafunika.