Shackles and rigging

mercredi 4 mars 2015

Hi All, This is my first post and I'm attempting to set up my boom truck for lifting HVAC units. Do you know what length straps I should buy and what size shackles?..I believe due to the different HVAC roof units I need to carry two different size shackles to fit into the metal rails of the RTU's? (4 each of what size?)

Thanks for any input!