ハウ ツー 操作 A 折り畳み はしご

ハウツー 操作 a 折り畳み はしご

(2つ折り はしご および 4つ折り はしご)

1. ロック と 展開 はしご 柱 外側. いつ あなた 聞く a "click" 音 と ロック ブロック 入る 位置, it 示す それ 蝶番 持っている ロック この 位置。

2. 開く the lock by pulling the handle, and at the same time, the lock block is retracted to the position, indicating that the hinge has been unlocked. At this time, the angle between the the ladder pillars can be changed or the ladder can be folded

*If you encounter a situation where the handle cannot be pulled and the lock cannot be opened, it is because the hinge is under pressure on the lock block. At this time, you can pull the ladder pillar and shake it to release the external force

3. 後 checking that the ladder is in use, please 注意深く confirm that all hinges are in the locked position before use. If there are hinges with lock blocks in position, they can be symmetriically opened, then retract the ladder pillar inward by about 40 degrees, and then unfold outward to lock the pair of hinges

4. 注意:

a. A 梯子 with a total length of less than or equal to 4 meters can be unfolded into a straight ladder for use. At this time, the angle between the the ladder and the ground should be greater than 75 degrees, and the the hinge in the middle of the ladder should face the wall

b. いつ 使用 a four fold ladder as a platform, it is necessary to pad a flat plate with a thickness of at least 1cm

c. いつ 誰か is working on a ladder, it is strictly prohibited for others to pull the handle to change the locking status of the hinges