1. The lou used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The lou used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. Mahope iho o kalouua hoʻoneʻe ʻia mai ka loiloi nānā, ʻaʻole pono e ʻike ʻia nā hemahema a i ʻole deformation, a ʻo ka hoʻonui ʻana i ke kēkelē wehe ʻaʻole ʻoi aku ma mua o 0.25% o ka nui kumu.
4. No ka mealous that have passed the inspection, a mark should be printed in the low-stress area of the lou, including the rated lifting weight, factory mark or factory name, inspection mark, production number, etc.
ʻO kaloupono e kāpae ʻia ke hele ʻia kahi o nā hanana aʻe:
â ʻĀhaʻi;
â ʻ¡ Paukū weliweli a hiki i 10% o ka nui kumu;
â ‘¢ Hoʻonui ʻia ke kēkelē wehe e 15% hoʻohālikelike ʻia me ka nui kumu;
④The torsion deformation of the lou body exceeds 10°;
⑤The dangerous section of the lou or the neck of the lou is plastically deformed;
⑥The lou thread is corroded;
⑦When the wear of the lou bushing reaches 50% of the original size, the bushing should be replaced;
âʻ§ Ke hiki i ka mandrel o ka ʻāpanaloukomo ʻia i 5% o ka nui kumu, pono e hoʻololi i ka mandrel.