Kumapeto kwa unyolo, gawo la unyolo wa nangula lomwe ES yake imalumikizidwa mwachindunji ndi nangula wa nangula ndi gawo loyamba la unyolo. Kuphatikiza pa unyolo wamba, nthawi zambiri pamakhala zolumikizira za nangula monga ma shackles a kumapeto, ma links a kumapeto, ma links okulirapo ndi ma Swivels. Kuti zikhale zosavuta kukonza, zolumikizira izi nthawi zambiri zimaphatikizidwa kukhala unyolo wolekanitsidwa wa ma nangula, wotchedwa seti yozungulira, yomwe imalumikizidwa ku thupi la unyolo ndi unyolo wolumikizira (kapena shackle). Pali mitundu yambiri ya ma link mu seti yolumikizira, ndipo mawonekedwe amodzi wamba akuwonetsedwa mu Chithunzi 4(b). Kutsegulira kwa shackle ya kumapeto kumatha kudziwika malinga ndi zomwe wogwiritsa ntchito akufuna, ndipo kuli mbali imodzi ndi nangula wa nangula (kulunjika ku nangula) kuti achepetse kuwonongeka ndi kupsinjika pakati pa nangula ndi mlomo wapansi wa nangula.
Malinga ndi unyolo wa nangula womwe watchulidwa, mphete yozungulira iyenera kuperekedwa kumapeto kwa nangula yolumikizira. Cholinga cha kuzungulira ndikuletsa unyolo wa nangula kuti usapindike kwambiri ukakhala wokhazikika. Bolu la mphete la chozunguliracho liyenera kuyang'ana pakati kuti lichepetse kukangana ndi kugwedezeka. Bolu la mphete ndi thupi lake ziyenera kukhala pamzere womwewo wapakati ndipo zitha kuzungulira momasuka. Mtundu watsopano wa cholumikizira, chozungulira shackle (Swivel Shackle, SW.S), chimagwiritsidwanso ntchito nthawi zambiri masiku ano. Chimodzi ndi mtundu A, chomwe chimayikidwa mwachindunji pa nangula m'malo mwa chogwirira shackle. China ndi mtundu B, chomwe chimaperekedwa kumapeto kwa unyolo kuti chilowe m'malo mwa chogwirira shackle ndipo chimalumikizidwa ku chogwirira shackle. Chogwirira shackle chikayikidwa, chogwirira shackle chimatha kuchotsedwa popanda chozungulira ndi chogwirira shackle.
Nthawi yotumizira: Julayi-19-2022