I-1, izibopho kufanele zibe bushelelezi futhi zibushelelezi, zingavumeli imifantu nezinye iziphambeko, imiphetho ebukhali, evuthayo.

2, vimbela ukusetshenziswa kwe-cast iron noma ijoka lensimbi. I-Buckle ingasetshenziswa nge-forgings yensimbi, i-forging ngemva kokucubungula kwephinikhodi ye-shaft.

3, akufanele iboshwe yinoma yikuphi ukubhoboza noma ukulungiswa kwe-welding. Inkinobho nenaliti akufanele ikwazi ukulungisa i-deformation unomphela.

I-4, uma isetshenziswa, kufanele ihlole i-buckle ne-latch, kodwa ukuguga ngokweqile, ukuguquguquka nokukhathala kuyaqhekeka.

5, inaliti kufanele ifakwe lapho kufanele kusetshenziswe isikhala esivundlile.

6, ukufakwa okulungile, i-axis yobubanzi be-buckle akufanele inciphise umzimba, uxhumano lwentambo luhle kakhulu.

7, ukusetshenziswa okungaphezu komthwalo wokuphepha wejoka