Thursday, January 18, 2007

Determining the weight

Shipping papers

Catalogue data

Label on object

Design drawings

Calculation

Friday, January 12, 2007

First things that you should know before lifting

1. What are you going to lift ?

2. What does it weight ?

3. Where is the center of gravity ?

4.What type of rigging will you use ?

5.what configuration of rigging will you use ?

Wednesday, January 10, 2007

Wire Rope Grips

For OSHA (Construction) applications, see OSHA 1926.251

1.



Refer to Table 1 in following these instructions. Turn back specified amount of rope from thimble or loop. Apply first clip one base width from dead end of rope. Apply U-Bolt over dead end of wire rope - live end rests in saddle (Never saddle a dead horse !) - exception G429. Tighten nuts evenly, alternate from one nut to the other until reaching the recommended torque.


2.




When two clips are required, apply the second clip as near the loop or thimble as possible. Tighten nuts evenly, alternating until reaching the recommended torque. When more than two clips are required, apply the second clip as as near the loop or thimble as possible, turn nuts on the second clip firmly, but do not tighten. Proceed to Step 3.


3.




When tree or more clips are required, space additional clips equally between first two - take up slack - tighten nuts on each U-Bolt evenly, alternating from one nut to the other until reaching recommended torque.


Fig.1




The preferred method of splicing two wire ropes together is to use interlocking turnback eyes with thimbles, using the recommended number of clips on each eye (See figure 1)








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