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Te uara matua o ngā trencher: te kaha, te tika, me te whakawhitinga ahumoni
Kua roa kē pea ngā tōtō (trenchers) i te roa o ngā taputapu kawhiti ake, kua hinga hei iniana pono o te whakawhanaketanga o ngā ratonga taketake, te whakapai ake i te ahurea, me te hanga tāone. Ko te uara matua o ngā tōtō he whakautu anō hui ki ngā tuararu e toru o te kawhiti ā-ringa: te nui o ngā utu mahi, ngā tūkino haumaru hōtaka, me te iti o te tika o te mahi. Ko tētahi toto wā wehe heke anake e whakakapi i te 10–20 kaimahi, e hāngai ai i te tere o te whakatakoto pīpī ki te 100–500 mita rārangi ia hāora (neke atu i te whitu kia tere ake i te mahi ā-ringa), e iti ai i te 70% te wā e hiahiatia ana mō te kaupapa. Kua tere ake tēnei e iti ai i te 30% te utu katoa o te hanga, ā, he mea matua nui tēnei mō ngā kaupapa e herea ana i te wā pērā i te whakauru hiriwai 5G, i ngā pūnaha wai māngai rānei.
Ko te tuarua o ngā whai pikinga matua ko te whakapai ake i te tika o te inihua. Ka taea te whakahaere i te hapa o te hohonu o te kōpapaku e te punaha hydraulics kia noho i roto i te ±1 inīhi (kei te 2.54 mitamano mita), e whakatutuki ana i te tāone OSHA (Tari Whakahaere Hauora me te Haumaru Mahi o Amerika) i ngā tātai haumaru mo te tika o te pātua o te kōpapaku engari hoki kia tiakina ai te noho tūturu o ngā raru rerewā ki raro i te rārangi hinu. Ko te whakahaere i te kaha o te rahi rite ki te mitamano mita e iti ake ai te mōrearea o ngā take pērā i te raru rerewā e hū ana, te pātua e hinga ana - e ai ki ngā raraunga mai i te Kāwai Whakahaere o Amerika Tekau Tāwhā, he 65% te iti ake o ngā kaupapa e hinga ai te whara i ngā whakawhitinga rerewā i ngā kaupapa e whakamahi ana i ngā kōpapaku.
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"Ka rite tēnei wira ki te katoa – mai i te neke i te kōraru ki te whakakaha i ngā taonga. Kāore he ngoikera ngā hydraulics, ākene hoki ki ngā kawenga rite. Whakaorangia i te 3 haora ia rā ina whakaritea ki te kōwhiru, i te taputapu iti ake rānei."
"Kua hokona e mātou mō te whakangā kaupeka me te whakahaere i te parurenga, engari kua kaha ake hei kaiārahi mā mātou i te tau katoa. Kua whakahaere i te hukapapa rerekētia ki te kōhanga hukapapa, kātahi ka huri ki te rāranga wā kua tūhono. Ko te noho māmā o te kāpua (hau paruhi/AC!) e whakamāmā ai i ngā rā 10-haora."
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