Chifukwa cha kuthekera kwake kusintha zinthu, katundu wake ukhoza kusinthidwa pakati pa 0-3t, ndipo ndi wotchuka kwambiri ponyamula katundu m'nyumba zosungiramo katundu, zosavuta kugwiritsa ntchito, zosavuta kugwiritsa ntchito komanso zosavuta kunyamula. Ndi kusintha kwa miyezo ya moyo, mabanja ambiri kapena malo ogwirira ntchito ang'onoang'ono pang'onopang'ono amagwiritsa ntchito nsanja yonyamulira lumo kawiri kuti alowe m'malo mwa njira zakale zogwirira ntchito monga madesiki, ndikugwiritsa ntchito matebulo onyamulira a hydraulic omwe amagwira ntchito bwino komanso anzeru kwambiri.

Ma injini apamwamba kwambiri a malo opopera a makampani odziwika bwino ndi nsanja yonyamula zinthu zolemera yomwe imapereka mphamvu zokwanira komanso zolimba mmwamba, zomwe zimapangitsa kuti ikhale yotetezeka komanso yosavuta kugwiritsa ntchito. Ndipo mawonekedwe apamwamba a nsanja yokweza lumo kawiri imapangitsa kuti ntchito yake ikhale yayitali, wogula amatha kuigwiritsa ntchito kwa zaka 5-8, pafupifupi chaka chilichonse, mtengo wogulira ndi wotsika kwambiri, koma yapeza chidziwitso chabwino cha ogwiritsa ntchito komanso malo otetezeka ogwirira ntchito. Poyerekeza ndi tebulo lokweza lumo limodzi, kutalika komwe kungasinthidwe kwa nsanja yokweza lumo kawiri ndi kokwera, zomwe zimapatsa antchito mwayi waukulu.