无码精品一区二区三区在线播放,久久国产精品亚洲,中文字幕高清有码在线中字,精品视频区二

Uses: this hook set is suitable for all kinds of light, the heavy type and bridge type and gantry crane, and other similar hoisting equipment, has a reasonable structure, light weight, flexible rotation, safe and reliable, and great versatility.

Matters needing attention

A, roller bearing, shall periodically filling calcium base grease lubrication.

B, check whether there is any change, on the clearance between the pulley and lubrication to cover the gap should be the diameter of wire rope around a quarter, such as the gap width than fixed value, should be adjusted in a timely manner, so as to avoid wire rope groove.

C, hook group should be based on use case, at least once a year overhaul, if discover the following situations:

1, with 10 to 20 times the magnifying glass to enlarge, check the mechanical parts, such as hook, beam, plate, sliding shaft surface has crack, etc.

2, hook the dangerous section and the hook neck and tensile deformation, or wear more than 10-20% of the cross section height.

3, hook beam rotation axis neck, wear a 3-5% of nominal diameter.

4, check the bearing of the ball, and presence of broken or serious wear and tear.

5, this hook group to adapt to the working environment temperature is not lower than - 20 ℃ ~ 25 ℃, such as working environment below 20 ℃, used should be appropriate to lower the standard of crane, so as to avoid an accident.