ʻO ka mīkini ʻaila hydraulic piha piha kahi mīkini ʻaila liʻiliʻi i maʻalahi i ka hana ʻana, ʻoi aku ka maikaʻi o ka hoʻoulu ʻana, a me ka liʻiliʻi o nā ʻāpana ʻāpana.Hoʻokahi wale nō mīkini paʻi aila hydraulic, hiki iā ʻoe ke loaʻa ka ʻaila maikaʻi a maʻalahi hoʻi e hana.