V7 update - 23 April 2021 - The machine should also have visible or audible overload warning (loads over 1 tonne), check valves, be marked with SWL and be subject to LOLER thorough examination (if operator not protected by FOPS/OPS/ROPS or if there is a risk that loads may be lifted over or close to people).
Thanks go to the FISA Plant & Equipment Tree Shears/Grapple Saws Sub-Group, chaired by Sean Reilly for pulling this safety alert together so quickly in support of the industry.