Ukusetyenziswa ngokukhuselekileyo kwimingxunya

I-shacle ilunxibelelwano phakathi kwezinto ezahlukeneyo, ezinokusetyenziselwa ukunxibelelana phakathi kwesiqwengana kunye nokuqhekeka okanye i-biling bolt; ukunxibelelana phakathi kwesiqwengana nesiqwengana; njengendawo yokuphakamisa i-sling edibeneyo. Iimfuno zokhuseleko eziza kubakho ngolu hlobo lulandelayo:
1. Umqhubi unokusebenzisa i-chackle kuphela emva kokuqeqeshwa.
2. Ngaphambi kokusebenza, jonga ukuba zonke iimodeli zomngxunya ziyahambelana kwaye nokuba unxibelelwano luyaqina kwaye luthembekile.
I-3. Kunqatshelwe ukusebenzisa ii-bolts okanye iintonga zensimbi endaweni yemikhonkco.
4. Akukho mpembelelo inkulu kunye nokungqubana kuvunyelwe ngexesha lokuphakamisa.
I-5. Iphini ye-PIN kufuneka ijikeleze ngokungaguqukiyo kumngxunya wokuphakanyiswa, kwaye akukho qamma ivunyelwe.
I-6. Umzimba ongqengqelekayo awunakuthwala umzuzu wokugoba emva kwexesha, oko kukuthi, umthamo we-berner kufuneka ube ngaphakathi kwindiza yomzimba.
7. Xa kukho ii-angles ezahlukeneyo zokuphatha inqwelomoya kwindiza yomzimba, umthwalo wokusebenza womngxunya uhlengahlengisiwe.
8. I-engile phakathi komlenze weemitha ezimbini eziqhutywa ngumngxunya aziyi kuba ngaphezulu kwe-120 °.
9. Umngxunya kufuneka uwuxhase ngokufanelekileyo umthwalo, oko kukuthi, amandla kufuneka abe ecaleni kwe-axis yomgca weziko lomngxunya. Kulumkele ukugoba, imithwalo engazinzanga, kwaye ingaphembeli kakhulu.
10. Kulumkele umthwalo we-eccentric.
11. Uvavanyo olufanelekileyo olufanelekileyo kufuneka lugqitywe ngokokusebenza rhoqo kokusetyenziswa kunye nobukhulu beemeko zomsebenzi. Ixesha lokuhlola amaxesha ngamaxesha akufuneki libe ngaphantsi kwesiqingatha ngonyaka, kwaye ubude bungabi ngaphezu konyaka, kwaye iirekhodi zokuhlola kufuneka zenziwe.
I-12. Xa isihlahla sisetyenziswa kunye nentambo ye-wire iqengqeleka njengendawo yokubopha, inxalenye ethe tyaba iqhagamshelwe kwi-roper yentambo ye-wire kunye ne-rockert ephakathi I-riging iphakanyisiwe, ibangela ukuba iphini ethe tyaba ijikeleza, ibangela i-pine ethe tyaba ukuze isuse kumzimba we-buckle.
Ukusetyenziswa ngokuchanekileyo kwemingxunya kuyayimfuneko ukuqinisekisa ukhuseleko.