2-19
TWO-PART LINE REEVING
For loads above 4500 pounds (2040 kg), the sheave block must be used. The wedge socket
should be pinned to the boom sheave plates, as shown in the figure. The dead end of the
rope in the wedge socket should be clamped, as shown in the figure. The clamp must not be
used on the live part of the rope. This will seriously weaken the rope by metal fatigue over a
number of cycles. The sheave block should hang straight, and the top of the block should
meet the boom sheave plates squarely when pulled up snugly.