1. Tus neeg teb xov tooj tsuas tuaj yeem siv lub shackle tom qab tau txais kev cob qhia.
2. Ua ntej ua haujlwm, xyuas seb txhua tus qauv shackle haum thiab seb qhov kev sib txuas puas ruaj khov thiab txhim khu kev qha.
3. Nws yog txwv tsis pub siv bolts lossis hlau rods es tsis txhob siv cov pins.
4. Tsis muaj kev cuam tshuam loj thiab kev sib tsoo raug tso cai thaum lub sijhawm nqa.
5. Tus pin bearing yuav tsum tig flexibly nyob rau hauv lub lifting qhov, thiab tsis pub jamming.
6. Lub cev shackle tsis tuaj yeem dais lub sijhawm khoov sab nraud, uas yog, lub peev xwm ntawm lub cev yuav tsum nyob hauv lub dav hlau lub cev.
7. Thaum muaj qhov sib txawv ntawm cov kabmob muaj peev xwm hauv lub dav hlau ntawm lub cev, kev ua haujlwm ntawm lub shackle kuj raug kho.
8. Lub kaum sab xis ntawm ob txhais ceg rigging nqa los ntawm shackle yuav tsum tsis txhob siab tshaj 120 °.
9. Lub shackle yuav tsum raug txhawb nqa lub load, uas yog, lub zog yuav tsum nyob rau hauv lub axis ntawm kab nruab nrab ntawm lub shackle. Tsis txhob khoov, tsis ruaj khov, thiab tsis txhob overloading.
10. Tsis txhob eccentric load ntawm shackle.
11. Kev tshuaj xyuas tsis tu ncua tsim nyog yuav tsum tau txiav txim siab raws li qhov zaus ntawm kev siv thiab qhov hnyav ntawm kev ua haujlwm. Lub sijhawm tshuaj xyuas lub sijhawm yuav tsum tsis pub tsawg tshaj li ib nrab xyoo, thiab qhov ntev yuav tsum tsis pub tshaj ib xyoos, thiab cov ntaub ntawv tshuaj xyuas yuav tsum tau ua.
12. Thaum lub shackle yog siv ua ke nrog cov hlau hlua rigging raws li ib tug binding rigging, kab rov tav tus pin ib feem ntawm shackle yuav tsum tau txuas nrog lub eyelet ntawm cov hlau hlua rigging, thiaj li tsis txhob muaj kev sib txhuam ntawm cov hlau hlua thiab shackle thaum. lub rigging yog lifted, ua rau kab rov tav Tus pin rotates, ua rau tus pin kab rov tav disengage ntawm lub buckle lub cev.
Kev siv cov shackles kom raug yog tsim nyog los xyuas kom muaj kev nyab xeeb.
