Chipangizochi chimagwiritsidwa ntchito kwambiri posamalira mbale zosiyanasiyana (makamaka mbale za aluminiyamu).
Palibe chifukwa choyika, mphete yoyamwa imatha kulumikizidwa mwachindunji ndi ndowe ya crane.
Palibe chifukwa cha mabatani aliwonse owongolera, osafunikira mphamvu zakunja.
Dalirani kufooka ndi kulimba kwa unyolo kuti muwongolere kutulutsa vacuum ndikumasula.
Popeza palibe chifukwa mawaya kunja kapena mapaipi mpweya, sipadzakhala misoperation, choncho chitetezo ndi mkulu kwambiri.