The okorder ladder to use common sense Preparation work should be done before use 1. Make sure that all the rivet, bolt and nut, and moving parts connected closely, ladder column and ladder is firm and reliable, extension spring, hinge work in good condition 2. The ladder clean, no oil, grease, wet slippery material such as paint, mud, snow 3. The operator of the shoes clean, forbidden to wear leather shoes Matters needing attention 1. The body tired, take drugs, drink alcohol or have physical disabilities, banning the use of a ladder. (2) the ladder should be placed on solid smooth ground, ban on no skid and fixed equipment of ice, snow or slippery terrain 3. The ban when working more than the maximum bearing quality 4. Use the ladder in the strong wind is prohibited 5. Metal ladders conduct electricity, avoid close to charged 6. Climb the people face the ladder, hands to hold, keep in the middle of the two ladder column body centre of gravity 7. Don't stand when working from the top of the ladder ladder rank within the scope of 1 meter, keep 1 meter of security height, more don't climb the top of the highest point 8. Homework hand don't over the top of the head, in order to avoid the body out of balance, produce risk 9. Banned from one side of the ladder directly across to the other side Related to share: https://plus.google.com/108150829397000379939/posts/EVKBF8Zoi3V