ʻO 1- 20T wale nō ka ʻōpala a i ʻole ke ala kila ma lalo o ke kaʻa me 2 crossbeam no nā mīkini kolo liʻiliʻi.

Loaʻa paha i nā kaʻa liʻiliʻi nā mea maikaʻi ma mua o nā mea nui:

1. ʻO ka maʻalahi a me ka maʻalahi: ʻoi aku ka maʻalahi o ke kaʻa kaʻa liʻiliʻi a hiki ke maʻalahi ke hele i nā ala haiki a i ʻole ka hana ma nā wahi ākea. He kūpono ia no nā wahi paʻa a i ʻole nā ​​wahi hana e pono ai ka huli pinepine.

2. E mālama i ka hakahaka: Pono ka liʻiliʻi ma lalo o ke kaʻa ka liʻiliʻi o ka wahi no ka mālama ʻana a me ke kaʻa ʻana, ʻoi aku ka maikaʻi o ka hoʻohana ʻana ma nā wahi liʻiliʻi.

3. ʻOi aku ka maikaʻi o ka wahie: ʻoi aku ka liʻiliʻi o ke kaʻa liʻiliʻi ma mua o ka chassis nui a ʻoi aku ka liʻiliʻi o ke kumukūʻai holo.

4. ʻO ke kumu kūʻai haʻahaʻa: ʻO ka mea maʻamau, ʻoi aku ka liʻiliʻi o ka undercarriage liʻiliʻi i nā kumukūʻai kūʻai a mālama pono a ʻoi aku ka maikaʻi no nā noi me nā kālā liʻiliʻi.

Ma keʻano laulā, kūpono ka undercarriage liʻiliʻi no kekahi mau noi e koi ana i ka loli kiʻekiʻe a me ka maikaʻi o ke kumukūʻai.