Chiyambi cha Zamalonda
Zopangira za SWDH zokhala ndi ma hydraulic pamwamba pa nyundo zobowola nyundo zimakhala ndi zida zobowolera zama hydraulic zamphamvu kwambiri zokhala ndi ntchito yotsutsa kuti muchepetse chiwopsezo chomamatira. Kuphatikiza apo, mphamvu ya injini ya rock drill-air compressor-injini yokhala ndi chobowola imagwirizana bwino, zomwe zingachepetse kwambiri kugwiritsa ntchito mafuta. Makhalidwe azinthu zonse ndi awa:
1. Kubowola kwa miyala yamphamvu kwambiri ya hydraulic, yokhala ndi mphamvu yayikulu komanso kugunda kumbuyo, kumachepetsa bwino chiopsezo chomamatira ndikusunga zida zobowola;
2. Zigawo zazikuluzikulu zimatenga mitundu yodziwika padziko lonse lapansi, yodalirika, yogwira ntchito kwambiri komanso kugwiritsa ntchito mphamvu zochepa;
3. Mwala kubowola-mpweya kompresa-injini yofananira, yokhala ndi ndalama"'/zamphamvu zapawiri ntchito mode. Kusinthasintha kwakukulu kwa mapangidwe a miyala ndi mtengo wotsika mtengo;
4. Makina onsewa ali ndi mawonekedwe ophatikizika, ang'onoang'ono komanso osinthika, othamanga othamanga komanso othamanga kwambiri;
5. Pezani mkono wobowola wopindika. Kubowola kwa nthawi imodzi, koyenera pobowola ma angle angapo, pobowola mwachangu komanso mwachangu.