Ii-chassis iloli kagesi ingeza umsebenzi wokusebenza kukagesi elolini lokuqala le-chassis elisebenza ngesandla. Usayizi uwonke uyafana neloli le-chassis elivamile elivamile. Inikeza isisekelo se-hardware esidingekayo sokubona izidingo zokulawula okuhlakaniphile, okuhleliwe, okukude kwekhabhinethi yokushintsha. Ngemuva kweminyaka yokuthuthuka nokuqamba izinto ezintsha,i-chassis iloli kagesis zithuthukisiwe zisuka ku-1Stisizukulwane sikhulise uhlobo lwamanje 3rd uhlobo oludidiyelwe lwesizukulwane. Kusukela ku-3rd isizukulwane, ama-DC motors akhiwe ngobungcweti ahlala unomphela asemukelwe ukuze asebenzise ngokugcwele isikhala eseqile se-chassis yasekuqaleni. Ngemva kokufakwa, ngeke kushintshe ukuphakama, ubukhulu bokufakwa kwangaphandle, umsebenzi wokuxhumanisa, njll. weloli lika-chassis lokuqala eliqhutshwa ngesandla, elinesakhiwo esilula nokuguquguquka okunamandla.
