Tree World - View Single Post

ggg · 17th May 2007, 07:48 PM

I don't normally use these methods for lifting. It is more to give me mechanical advantage to pull things in alignment mainly piping, and other pieces of equipment that I need to align to get a pin in etc. The amount of force I normally generate using these methods are maybe 100+ lbs (Just guessing). The longer the turniquet the easier it is to generate the force. For heavier work I call in the riggers and they have the right equipment, chain falls, shackles, wire rope, etc.

I only mentioned this because I don't know anything else I can contribute, and I think it is useful to know. You guys should give it a try. Maybe it works best with straps which is what I normally use (less spring back in case something gives).

You don't have to smash the knot flat for this to work. You just pound on it to flattens out a bit on one axis and then turn it and flaten it on the new axis.
I guess you could even use a plastic mallet to minimize damage to the fibers.

The long of this story is that the shipyard disallowed the mechanics from using come-a-longs, wire rope, shackels etc. Only the rigger shop is now allowed to use rigging equipment. The theory is they have the formal training, and load tested equipment. Someone probably tied to the wrong place and bent or damaged equipment. Now everyone else does things the hard way, as the saying goes "You wanna do it the easy way or you wanna do it the HE-MAN way (joke)". We use a lot of straps because we tie to ships equipment and unless it is a padeye some things can be damaged/nicked with wire rope etc.

I do have a come-a-long that I use sparingly with straps. Yes it is not really allowed but since my job is to assist the shipsforce with troubleshooting and repair (as opposed to shipyard doing the repair) I cover myself by saying it is shipsforce equipment we are using.Those are the only times I am extra careful about straps breaking and I do take precautions such as using hold backs in case the main strap breaks. The knots can get really tight when you use chain falls to move equipment. Even in these instances there is hardly any lifting situations.

I am still glad I brought this up because based on your response most of you have never seen it. Even in the shipyard I hardly see this done. But you gotta try it to see what I am talking about. I have never been unable to untie a knot using this method even after I use a come a long pulling 1/2 ton (max rating).

I do thank all of you for your response. At least I got a thread going.

17th May 2007, 07:48 PM	#7 (permalink)
ggg Sappling Join Date: May 2007 Posts: 6	I don't normally use these methods for lifting. It is more to give me mechanical advantage to pull things in alignment mainly piping, and other pieces of equipment that I need to align to get a pin in etc. The amount of force I normally generate using these methods are maybe 100+ lbs (Just guessing). The longer the turniquet the easier it is to generate the force. For heavier work I call in the riggers and they have the right equipment, chain falls, shackles, wire rope, etc. I only mentioned this because I don't know anything else I can contribute, and I think it is useful to know. You guys should give it a try. Maybe it works best with straps which is what I normally use (less spring back in case something gives). You don't have to smash the knot flat for this to work. You just pound on it to flattens out a bit on one axis and then turn it and flaten it on the new axis. I guess you could even use a plastic mallet to minimize damage to the fibers. The long of this story is that the shipyard disallowed the mechanics from using come-a-longs, wire rope, shackels etc. Only the rigger shop is now allowed to use rigging equipment. The theory is they have the formal training, and load tested equipment. Someone probably tied to the wrong place and bent or damaged equipment. Now everyone else does things the hard way, as the saying goes "You wanna do it the easy way or you wanna do it the HE-MAN way (joke)". We use a lot of straps because we tie to ships equipment and unless it is a padeye some things can be damaged/nicked with wire rope etc. I do have a come-a-long that I use sparingly with straps. Yes it is not really allowed but since my job is to assist the shipsforce with troubleshooting and repair (as opposed to shipyard doing the repair) I cover myself by saying it is shipsforce equipment we are using.Those are the only times I am extra careful about straps breaking and I do take precautions such as using hold backs in case the main strap breaks. The knots can get really tight when you use chain falls to move equipment. Even in these instances there is hardly any lifting situations. I am still glad I brought this up because based on your response most of you have never seen it. Even in the shipyard I hardly see this done. But you gotta try it to see what I am talking about. I have never been unable to untie a knot using this method even after I use a come a long pulling 1/2 ton (max rating). I do thank all of you for your response. At least I got a thread going.