Amahamme ase-jack ase-hydraulic ayingenani amathuluzi okhulu okukhombisa izinyango ezinkulu njenge-concrete ne-asphalt. Basebenza ngokusebenzisa upressha lwe-hydraulic ukuze bakhuthaze izinyango ezingenani, okukhombisa izinyango ezinkulu. Lezi zimboni zisetyenziswa kumaphoyisa we-construction, ukulungisa amazwe, nokuhlakisa izinyango. Uma ubona umsebenzisi othwala izinqumo zokuphepha futhi usebenzisa isithunzi esikhulu esihlakanipha umbono wokusha, kusukela kubonakala ukuthi ngu-hydraulic jack hammer. Izimpahla njenge-Mazellion ziyakwenza lezi zithunzi, ekuvumelana ukuthi zibe nesikhundla sokuphepha nokusebenza kahle kuma-workers. Kuyisisekelo sokwazi ukuthi lezi zimboni zisebenza kanjani futhi ukuthi kufanele zisebenziswe kanjani ukuze ukungabonakali kuzo zonke izinkinga.
Ukusebenzisa amahamha e-hydraulic ayedwa ngokwanele, kodwa kukhona izinkinga eziningi ezizokubhekisana nazo abasebenzisi. Ingxenye enkulu yezinkinga kukhulu kwezinto zokusebenza. Amahamha e-hydraulic akhulu kakhulu, futhi ukuba umsebenzisi awunakho ubukhulu obulinganayo noma awasebenziseli ngendlela efanele, uyathwala ngokushesha. Lokhu kuthwala kuze kube nezinkinga noma izimpilo. Ingxenye eyodwa yezinkinga kukhuluma. Amahamha ayakhuluma kakhulu, okungahleli ukuzwa ngokuphansi kokuphansi. Abasebenzisi kufanele baphathele amasiko wokuzwa ukuze bakholele ukuzwa kwabo. Ukuvibrasi kuyingxenye eyodwa yezinkinga. Ukuvibrasi okukhulu kungahleli isimo esibizwa ngokuthi “Hand-Arm Vibration Syndrome (HAVS)”, okubangela ukuthi izinyawo nezihlangu ziyabuka noma ziyabulawa. Ukuze kubuswe lezi zinkinga, abasebenzisi kufanele bahlale, baphathele izinkambo zokulinda, bafunde izindlela ezifanele yokusebenzisa ihamha. Ukufundwa okufanele kuyisisekelo. Uma abasebenzisi abafundwe ngokungafanele, bangayisebenzisa izinto zokusebenza ngendlela engafanele, okungahleli izimpilo. Futhi uma izinto zokusebenza azikwazi ukuzinconywa ngokufanele, kungazange kwenze ngokufanele, okungahleli ukuthwala kwezikhathi zokuphatha. Abasebenzisi kufanele bahlapele ukuthi kunezinkinga zokugcina noma zokugcina ngaphambi kokusebenzisa izinto zokusebenza baphinde bakhulume ngokuthi kunezinkinga.