1. L kotahi matua kurupae matau hoist gantry warou ko te nuinga tito o gantry, pāpaka warou, me te waka haere trolley, waka me te pūnaha mana hiko.
2. He pouaka-ahua te ahua o te waka.Ka tango te papaka i te wira tauhohenga poutū ina kei raro te kawenga hiki i te 20t, me te wira tauhohenga whakapae i runga ake i te 20t ki te rere ki te taha o te porowhita.
3. Ko te whitiki he ara rītaha kotahi, he rite te ahua o te waewae ki te L, kia nui te waahi hiki, kia kaha hoki te kaha o te awha, kia ngawari ai te tango tuhinga mai i te awha ki raro i te taha.
4. Ko te kaa kati ka whakamahia mo te mahi, kei reira he tuuru ka taea te whakarite, he whariki whakamarumaru i runga i te papa, he karaehe whakamaarama mo te matapihi, he whakamaarama ahi, he powhiriwhiri hiko me nga taputapu awhina penei i te hau, te whakaoho oro me te waea waea ka taea te whakarato hei e hiahiatia ana e nga kaiwhakamahi.