The pulley is rotationally arranged on the connecting shaft. Closure holes which are used for locksets or ropes to pass through and be buckled and correspond to each other are arranged at the first moveable side plate and the second moveable side plate respectively. The single-pulley device ...
Attach the rope first to the bottom of the upper fixed pulley, then loop the rope down through the wheel on the moveable lower pulley. Now, loop the rope back up through the top fixed pulley. Make sure the rope is fully seated into the grooves on the pulley wheels. Step 3 Proceed to...