Ngā Pou o Raro o ngā Takirere Pōro Pūmau: He Wheako Whaihua me ngā Tohutohu mō te Raru o ngā Hurihanga Hanganga
He mea ngāwari te wareware i te kakau o raro o te takirere pōro pumau, engari he utu nui te mahi hē. Ahakoa he maeneene te hurihanga o te matua pōro, me te nekehanga o te tuaka, he maha ngā wā ka whakawhirinaki ki te rahi me te pokapū o tēnei kakau o raro i ngā wāhanga miihini me te huihuinga.
He maha ngā raruraru rite kua pā mai ki a mātou, he kiritaki me te hanganga DN500 Class 600, he mārama te ahua o te pouri i te whakatuwheratanga me te kati o te mara. I te tuatahi i whakapaehia he rerekē te āhua o te actuator, te pōro rānei, i te wā i wetewetehia ai, ka kitea he nui rawa te oma o te taahiraa o raro o te pou, ā, i nui ake te tawhiti o te nohoanga peera i te uara hoahoa, ā, ka hua ake te nekehanga o te pokapū oma o te matua pōro katoa.
Mō te hoahoa hanganga o te pou raro, e taunakihia ana kia whakamahia te tūnga o ngā taahiraa, ā, i te wā kotahi, me mārama mēnā kei te taha o te pakihiwi, kei te taha rānei o te takahanga o raro i te mutunga. Mēnā kāore tēnei taipitopito i tohua mārama ki te tuhi, ka ngāwari te tāuta i te mea hē ina whakawhirinaki ki te whakatau ā-wheako i te huihuinga o muri mai. Ina mahi tātou ki tēnei taha, ka tangohia e tātou te tuaka o te pōro hei pokapū hei whakatū i te rārangi tohutoro o ngā kōhao o runga me raro o te peera, kātahi ka whakatikatika i te hanganga tūnga kia rite ki te hanganga o te pou o runga me raro.
Ko te hangarau tukatuka, me whakatikatika te miihini taratara o ngā mea hanga i muri i te tukatuka, kātahi ka huri tahi i ngā mata matua katoa mā te whakamahi i te whakapiripiri. He maha ngā wā ka whakahaerehia e mātou te rere o te hikoinga i roto i te 0.03, te coaxiality ≤ 0.015. Ka mahi hoki ētahi hanganga reti i te huri porotaka, i te nitriding rānei, inā koa he iti te waku e hiahiatia ana e te kiritaki, he roa rānei te ora o te mahi o te kaupapa.
Ahakoa kāore tēnei wāhanga i te nui, ina kohia te peka o waenganui, ka pā ki te pumau o te hanganga hiri katoa, inā koa mēnā kāore e tino hono te nohoanga pōro, mēnā rānei kua rerekē te hanganga rohe. Ka tūtohu mātou kia mārama te tohu o te ahunga hononga ki ngā tuhi, kia whakaratohia rānei te hoahoa hanganga whānui i mua i te huihuinga, kia taea ai e mātou te mahi i tētahi whakatauira pokanoa i mua i te wā hei ārai i te mahi anō i muri mai.