Search results

Ron, I was talking about the boom flipping over backwards, not the rig.

Ron made me thing of something about shackles. It's not really a safety issue but will save you a bunch of headaches. When installing a screw pin shackle, tighten the pin down until it stops, and then back it off just a fraction. Doing this will keep you from having to use a wrench to remove the...

The boom flipping over backwards isn't much of a problem with hydraulic cranes, the boom cylinder will prevent this from happening. You are correct about lattice boom cranes as in the vid though. Also, the P&H and American cranes you mentioned have a massive amount of counterweight hanging off...

Lifting over the back, the boom will more than likely fail before you pull the front tires off the ground. Now the winch line may stall before this happens but I have seen buckled booms. That's also why you have to install the boom jacks for lifting heavy loads.

While there may not be any "official" standard hand signals, the chart you posted is all I've ever seen in any manuals or warning stickers. There are a few abbreviated signals that you will see in the business but that chart pretty well covers it. The abbreviated signals are used when a flagman...

Being a certified crane operator myself, I've seen some wrecker owners do some crazy stuff. It only good part about it were they were light loads where there was a lot of safety factor (they about used it all up though). I've seen people try to drag stuff sideways with the swing and two block it...