Izixhumanisi

01 Uhlobo nomsebenzi wendandatho elengayo

Indandatho elengayo ingahlukaniswa ibe yindandatho elenga engalo eyodwa kanye nendandatho elengayo enengalo ekabili ngokuya ngesakhiwo. Umsebenzi wayo oyinhloko ukumisa i-hanger ukuze ibambe i-drill lapho i-drill idonsela phansi. Okufana ne-DH150, SH250, lapho u-D emelela ingalo eyodwa, u-S umele izingalo zombili, u-H umele iringi, 150, 250 imele umthwalo olinganiselwe wendandatho, iyunithi ingu-9.8×103N (tf).

Izinyathelo zokuqapha zokusebenzisa izindandatho zokulenga

(1) Iringi kufanele isetshenziswe ngababili, ingahlangani, futhi umehluko wobude obusebenzayo beringi entsha akufanele ube mkhulu kuno-3mm; Umehluko phakathi kobude obusebenzayo bamasongo amabili asetshenziswayo akufanele ube mkhulu kuno-5mm (ubude obusebenzayo bubhekisela ebangeni eliphakathi kwendawo yokuthintana yendlebe engenhla yeringi kanye nendlebe eseceleni yehuku nendawo yokuthintana indlebe ephansi kanye nekheshi Umehluko wobude obusebenzayo ubhekisela emehlukweni wobude obusebenzayo bepheya lamasongo).

(2) Khetha iringi efanele ngokwezidingo zomthwalo, futhi wenqabele ukusetshenziswa kokugcwala ngokweqile.

(3) Iringi akufanele ibe nemifantu kanye namashisela.

(4) Lapho kubholwa, izindandatho ezimbili kufanele ziboshwe ndawonye ukuze zinganyakazi futhi zingashayi umpompi.

(5) Ngemva kokuphatha izingozi noma ukuphakamisa okuqinile (izikhathi ezingaphezu kwezingu-1.25 zomthwalo olinganiselwe wendandatho elengayo), kufanele imiswe, futhi kufanele ihlolwe futhi ihlolwe.

(6) Indandatho elengayo kufanele ibe nezinga elithile lenkululeko yokushwiba ecicini le-hook, kanye nesimo sekhadi elingavinjelwe.

(7) Iringi yokuphakamisa kufanele iboshwe entanjeni yocingo oluphephile ehuku.