Rhagofalon ar gyfer defnyddio bachau yn ddiogel

1. Mae'rbachyn should be manufactured by a formal professional factory in accordance with the technical conditions and safety specifications of the bachyn, and the product should have the quality certificate of the manufacturer, otherwise it is not allowed to be used.
2. The new bachyn should be subjected to a load test, and the opening of the measuring bachyn should not exceed 0.25% of the original opening.
3.During use, check whether the bachyn is cracked or severely deformed, corroded and worn.
4. Mae'rbachyndylid ei brofi unwaith y flwyddyn. Yn ystod y prawf, cynhaliwch brawf statig o 1.25 gwaith y llwyth gweithio a ganiateir am 10 munud, a gwiriwch gyda chwyddwydr neu ddulliau eraill. Ni ddylai fod unrhyw graciau, craciau ac anffurfiad gweddilliol.
5. Dylai'r tair rhan beryglus gael eu glanhau â cerosen. Defnyddiwch chwyddwydr i weld a oes craciau. Ar gyfer plâtbachyns, gwiriwch y bushings a'r pinnau am eu gwisgo.
6. Defects on the bachyn shall not be repaired.