Lombalo lula kakhulu ukususa umlilo nezindlu ngaphandle koko lisebenza njenge-fueler, libe linemisebenzi engaphezu kweyodwa ngomkhumbi ombili futhi libe libeka izimali zokunquma izixhobo.
1.Yenzelwe ngesiloyi, inegunya elikhulu futhi inasimilo esinde.
2.Ingalayishwa ngendlela ephakeme noma ngendlalela, ngokusho kohlobo lweseko lwenqubekela.
3.Kuchazwe ukuxhumana okunikezela amandla aphansi phakathi kwe-roller ne-reducer, ekunikeza ukuphepha kakhulu.