1. Iyo gusya kwa conical, imbonerahamwe irashobora guhindurwa kumpande zombi kandi igahagarara neza ukoresheje umunzani.
2.Firime yamavuta hagati yo kwifata no kuzunguruka ikomeza kunyeganyega ata urwego ntarengwa, bityo ukagera kubisubizo bigaragara kandi byukuri.
3.Kuringaniza neza kuzunguruka umutwe hamwe no gusya bikomeye umutwe byemeza ibisubizo bidasanzwe muburyo ubwo aribwo bwose bwo gukora.
4. Imbaraga zikomeye hamwe nibikoresho byateguwe neza byimashini ituma irwanya ihindagurika ryubushyuhe no guhindagurika.
5. Spindle yashizwe kumpande zombi kandi iranga uburyo bwo guhinduranya kunyerera bugizwe nibice bitatu.