YT27hewiri toka waewae haue whakamahia ana mō te nuingakeri tokangā mahi i roto ikerikeri kauhanga, rerewē, tiaki wai, tiaki whenua mō te hangarau toka ā-motu me ētahi atu mara. He pai mō te keri i ngā toka mākū o ngā toka pakeke reo-rahi, ā, ka taea te keri i ngā poka whakapae me ngā poka piko. I muri i te tango i te waewae hau, ka taea hoki te tāuta ki runga i te taraka hei whakamahi.
Ko ngā āhuatanga matua me ngā whakamahinga o te mīhini wiri toka YT27 ko:
Keri toka tino whai hua: He keri toka waewae hau a YT27 e tika ana mō ngā mahi keri toka maha.
Whānui te whakamahinga: He whānui te whakamahinga i roto i te maina, ngā kauhanga, ngā rēriwe, te tiaki wai, te tiaki whenua me ētahi atu kaupapa hangarau, he tino pai mō te keri poka me ētahi atu mahi keri.

Keri toka mākū: Ka taea te whakamahi tahi me te werohanga hinu FY250 me te waewae hau FT160A (FT160B, FT160C, FT170 rānei) mō te keri toka mākū, ā, ka whakaitihia te puehu.

Ngā tikanga tāutanga maha: Ka taea te whakamahi tahi me te waewae hau, ka taea rānei te tāuta ki runga i te taputapu keri, ki te anga keri rānei.

Ngāwari ki te whakahaere: He pokapū te kakau whakahaere, he ngāwari ki te whakahaere, ā, he mahi anō hoki pērā i te hononga hau, wai, me te tautuhi tere i ngā waewae hau.
Teitei te pono: Mā te whakamahi i te takirere whakahaere momo flange, he pai te piri o te hau me te pono.
Ka taea te whakamahi mō te keri kauhanga: he pai mō ngā mahi keri toka i roto i ngā maina nunui me ngā maina rahi-waenga, me te hangarau kauhanga.
Ngā momo toka maha: he pai mō ngā toka mārō waenga me ngā toka mārō.

Ētahi whakatūpato mō te whakamahi i ngā wiri toka:

He mīhini te keri toka i hangaia hei keri i te toka, e whakamahia whānuitia ana i roto i te maina, te hanga, me te keri pari mō ngā mahi pēnei i te hanga poka pupuhi, te keri poka punga rānei. Ka taea te whakamahi i te hau, te waipēhi, te penehīni rānei hei whakakaha. He maha ngā momo keri toka, tae atu ki ngā tauira ringaringa mō ngā mahi māmā me ngā keri nui ake, taumaha mō ngā mahi uaua ake.
Ngā momo wiri toka:
Ngā Wīra Toka Hauātea:He mea whakakaha te hau kōpeke, ā, he mea noa ēnei mō te keri i runga i te mata me te raro whenua.
Ngā Wiri Toka Waipēhi:He kaha teitei, ā, e whakamahia ana i ngā mahi taumaha pēnei i te keri kōhatu me te hanga whare.
Ngā Keri Toka Penehīni:He ngāwari te kawe, ā, he pai mō ngā wāhi tūroa, mō ngā āhuatanga ohorere rānei.
Ngā tono:
Pahūtanga: Te keri i ngā kōhao mō ngā mea pahū i roto i te maina me te hanga whare.
Te keri kōhatu: Te keri i ngā kōhao hei wāwāhi i te kōhatu mā te whakamahi i ngā tikanga mono me te huruhuru manu, hei hanga rānei i ngā pakaru whakahaeretia.
Keri Punga: Te hanga kōhao hei whakau i ngā hanganga, i ngā taputapu rānei.
Te hanga: Te keri i ngā kōhao mō ngā turanga, ngā rori, me ētahi atu kaupapa hanganga.
Te Tūhuratanga Kohuke: Te keri i ngā tauira matua hei tātari i te matawhenua o raro i te mata.
Ngā Āhuatanga Matua:
Ngā Wiri:He rerekē ngā momo mata wiri e whakamahia ana, i runga i te momo kohatu me te whakamahinga.
Pūtake Mana:Ngā kōwhiringa mana hau, waipēhi, penehīni rānei.
Hurihanga:Ka taea e ētahi wiri te huri hei whakapai ake i te whai huatanga o te keri, inā koa i roto i ngā toka mārō ake.
Te horoi:Kei ētahi wiri he pūnaha horoi wai, he pūnaha horoi hau rānei hei tango i ngā paru me te whakamatao i te mata wiri.
Ergonomics:Kei ētahi wiri ringaringa ngā āhuatanga pēnei i ngā kakau ārai-wiri me ngā ārai haruru hei whakamarie me te haumaru mō te kaiwhakahaere.