Kuyang'anira ndi kukonza makina a njerwa otha kutha nthawi zonse ndikofunikira. Asanayambe makinawo, gawo lililonse la zida liyenera kuyang'aniridwa ndipo mafuta a hydraulic ayenera kuwonjezeredwa malinga ndi malamulo. Ngati cholakwika chilichonse chikapezeka panthawi yoyendera, ziyenera kukonzedwa mwachangu kuti zikwaniritse zofunikira musanayambe makina opangira njerwa odziwikiratu. Asanayambe makinawo, ziyenera kutsimikiziridwa kuti palibe ogwira ntchito pafupi ndi zipangizo ndipo chizindikiro choyambira chiyenera kutumizidwa kwa ogwira ntchito, Ogwira ntchito pa malo aliwonse amatha kuyambitsa makinawo akakhala. Panthawi yopangira makina opangira njerwa, ogwira ntchito saloledwa kukhudza kapena kugunda mbali zogwirira ntchito za zida kapena utoto wa nkhungu ndi manja awo kuti aletse ena kulowa m'malo oyendera zida. Ayenera kukhala kutali ndi zida. Panthawi yopangira makina opangira njerwa, sikuloledwa kusintha, kuyeretsa, kapena kukonza zida popanda chilolezo. Zikawonongeka, makinawo ayenera kutsekedwa kuti asamalire; Zida zophatikizira ndi zosakaniza ziyenera kukonzedwa molingana ndi mphamvu ya makina a njerwa omwe amatha kutha, ndipo kudzaza sikuyenera kuchitika chifukwa cha magwiridwe antchito. Kuti mupewe kuipitsidwa kwa fumbi la hydraulic system, makina opangira njerwa amayenera kupatulidwa ndi njira zina.