hana ʻia ka hana ʻoihana me nā paomi a i ʻole me nā hāmare i hoʻoikaika ʻia e ka ea paʻa, ka uila, hydraulics a i ʻole ka mahu. Loaʻa paha i kēia mau hāmare ke kaupaona pānaʻi i nā kaukani paona. ʻO nā hāmare mana liʻiliʻi, 500 lb (230 kg) a i ʻole ka paona pānaʻi liʻiliʻi, a me nā mīkini hydraulic he mea maʻamau i nā smithies hana. Hoʻohana ʻia kekahi mau hamama mahu, akā ua lilo lākou i mea kahiko me ka loaʻa ʻana o nā kumu mana ʻē aʻe, ʻoi aku ka maʻalahi.