1. The chirauro used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The chirauro used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. Mushure mechirauroinobviswa pamutoro wekutarisa, hapafanire kuve nehurema hwakajeka kana kushomeka, uye kuwedzera kwedhigirii rekuvhura hakufanirwe kudarika 0.25% yehukuru hwepakutanga.
4. Nokutichirauros that have passed the inspection, a mark should be printed in the low-stress area of the chirauro, including the rated lifting weight, factory mark or factory name, inspection mark, production number, etc.
Iyochirauroinofanira kubviswa kana imwe yeanotevera mamiriro ezvinhu ikaitika:
â ‘Kutsemuka;
Chikamu chine njodzi chinopfeka chinosvika gumi muzana yehukuru hwepakutanga;
â ‘¢ Dhigirii rekuvhura rinowedzerwa ne15% zvichienzaniswa nehukuru hwepakutanga;
④The torsion deformation of the chirauro body exceeds 10°;
⑤The dangerous section of the chirauro or the neck of the chirauro is plastically deformed;
⑥The chirauro thread is corroded;
⑦When the wear of the chirauro bushing reaches 50% of the original size, the bushing should be replaced;
⑧ Kana mandrel echidimbuchirauroyakapfeka kusvika ku5% yehukuru hwepakutanga, mandrel inofanirwa kutsiviwa.