I nā hana crane, hiki i nā haumia ke loaʻa i nā hopena pōʻino e hiki ke alakaʻi i nā ulia a me ka hopena i ka pono o ka hana. No laila, he mea koʻikoʻi i nā mea hana ke nānā i ka hopena o nā haumia i ka hana crane.
ʻO kekahi o nā manaʻo nui e pili ana i nā haumia i ka hana crane ʻo ka hopena i ka paʻa pono o nā mea hana. Pono nā mea crane i nā waiwai kiko'ī e like me ka ikaika, ductility, a me ke kū'ē i ka haki a me ka deformation. Ke loaʻa nā haumia, hiki iā lākou ke hoʻopilikia maikaʻi i ka waiwai o ka crane, e alakaʻi ana i ka luhi waiwai, hoʻemi ʻia ka ikaika, a i ka hopena, hiki i ka hiki ʻole o ka pōʻino. Hiki i nā mea haumia liʻiliʻi e like me ka ʻōpala a me ka lepo ke hoʻopilikia i nā mea hana no ka mea e alakaʻi lākou i ka hōʻino ʻana i ka manawa ma muli o ka corrosion.
ʻO kahi hopena ʻē aʻe o nā haumia ma nā hana crane aia ma ka ʻōnaehana lubrication.Nā ʻāpana cranee koi i ka lubrication kūpono a me ka pinepine e hōʻoia i ka hana maʻemaʻe a pale i ka mīkini a me ka waimaka. Akā ʻo ka loaʻa ʻana o nā haumia i loko o ka ʻōnaehana lubrication hiki ke hoʻopilikia i ka maikaʻi o ka ʻaila, e alakaʻi i ka hoʻonui ʻana i ka friction, overheating, a me ka pōʻino i nā ʻōnaehana crane. Hiki i kēia ke hopena i ka manawa haʻahaʻa, nā kumukūʻai mālama, a me ka hoʻemi ʻana i ka huahana.
Hiki i ka loaʻa ʻana o nā haumia i loko o ke kaiapuni ke hoʻopilikia i nā hana crane. No ka laʻana, hiki i nā mea ʻē aʻe e like me ka lepo, nā ʻōpala, a me nā ʻāpana o ka lewa ke hoʻopaʻa i ka ea o ka crane a i ʻole nā kānana, e alakaʻi ana i ka hoʻemi ʻana o ka ea i ka ʻenekini. Hoʻopilikia kēia i ka hana ʻenekini a pili i ka hana crane, e hōʻino ai i nā ʻōnaehana ʻē aʻe a hoʻemi i ka huahana.
I ka hopena, pono e mālama pono nā mea hana i nā haumia a mālama mauluna cranemea lako. Ma ka hana ʻana pēlā, hiki iā lākou ke ʻike a hoʻoponopono i nā haumia i loko o nā mea hana, e hōʻoiaʻiʻo ana i nā hana maʻalahi a me ka hoʻonui ʻana i ka huahana. ʻO ka mālama ʻana i kahi kaiapuni hana kūpono, e hōʻoia i ka nānā mau ʻana a me ka mālama ʻana, a me ka makaʻala e ʻike i nā haumia hiki ke pale i nā pōʻino crane a hoʻonui i ke ola o nā mea hana.