He nui rawa te mana o ngā mota kaihanga hīrau, he mohio hoki ki te whakapai. Ka taea e rātou tōpūtia he nui atu i te waihape, kāore i taea te whakakapi i te waihape, e hāngai ana ki te tiaki i ngā rauemi. Nā tēnei ka whakawhiti i te hīrau wai (nā reira ngā mea katoa e pā ana ki ngā wai) ki te hīrau mekanika (he aha e haere ai ngā mea). I te waihangatia ngā mota i runga i tēnei hanganga, ka nui ake te whakapai rātau i ēnei mota kē.
Tētahi o ngā mea nui rawa omm 32 hydraulic motor ko te aronga heoi he mea e whai ake nei he whakamahi i aua mō ngā mahi tuatahi rerekē. Nā tēnei wawaruruhanga, ka whai wātaka rātau i runga i ngā whenua āhuarangi, ngā wāhi hanga, ā, hoki hoki ki ngā wāhi kōiwi. Ko tēnei te take i waenganui i ngā whenua ākitu, nā reira ko te take i waenganui i ngā momo whenua ākitu katoa kei te whakamahi i aua hei taunga whakamahi mō ō rātau hiahia.
Kei te pai ngā mota hīrahi hei whakatutuki i tēnei mahi, whakamahi i wai kōwhiri e hāngai ana ki te rauaruhe, pērā ko te rere. Ko te hopu nui o te āhuatanga ka whakapakari i te wai ki roto i te mota. I roto nei, ka whakawhiti te kākano ā-huringa o te wai e te mota ki te kākano mekanika hei tautoko i te whai wāhi a ngā mīhini nui. Ko tēnei kākano he mea whai take mo te whakatū tonu i ngā mīhini nui pērā ko ngā whakarere, ngā parauroa, me ngā whakatakoto whenua e āhei ana ki te haere, ki te kopiha, me te whakawherowhero i ngā rupu nui.
Kei ngā mīhini nui ngā mota hīrahi, ā, kei reira hoki te whakakitenga matua ki ngā waka me ngā karara. Ka whakamahi ngā mota nei ki roto i ngā rarangi mota hītea hou e whakamahi ana i te rama me te hiko i runga i te motokā ki te whakapai i te huanga mota me te tiaki i te rama. Ko tēnei e āhei ana ki te whakatipu i te whakahaere me te ara taiao.
Kei te whakamahia ngā mota hīrahi i mua noa atu hei whakatū i ngā tūru ki roto i te secta horopaki, hei tauira ngā kaihākiri me ngā pūtake. E whakamahi ana ngā putunga nei ki te whakarite whenua i mua i te tuherahera, ā, mā runga i te wā e nui ana ngā mahinga hei kai, ka whakahaere i te haritahi. Ki runga i te hangaanga, kei te whakamahia ngā mota hīrahi mō ngā karewa me ngā kaiwhakaatu, e awhina ana ki te awhe i ngā rara hirahira pērā i te porohita me te koneti. Ka whakamahia hoki rātau ki runga i ngā pūhiko, kei reira e awhina ana ki te whakahaere i ngā putunga, pērā i ngā pae kaiherehere e tukutuku ai ngā kai i runga i ngā raeti whakawhanake.
He nuinga o ngā pai o ngā mota hīrahi. Kei te tirotiro haeretia e rātau nei ngā putunga nui nei kia noho haumaru, kia kaua e tahitia te waihotanga o te waea, e hiahia ana tēnei ki te tiaki i te taiao, ā, ki te tiaki i te moni. Nō reira, kei te nui ake te mataarahi o rātau i te nuinga o ngā mota kē, ina e utu ana i te nui o te kaha, karekau e utu etahi wā o te waea.
Ko te mea hoki e taea ana te whakahaere i ngā mota kaihanga hīrau, he iti iho ngā moni kōwhiri. He mōhio hoki rātou ki te whakatū i ngā wāhi kē ki te whakamana me te pūmau, kāore i taea te whakakapi i a rātou e ngā take whenua tonu i ēnei mota. Ka whakaora tēnei pūmau i ngā moni nui mō ngā wā e whai ake nei, whakamana i ngā mahi ki te noho pai tonu.