Ropes & Knots.pdf - Los Angeles County Firefighters Association

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18 LOS ANGELES COUNTY FIRE DEPARTMENT CONTEXT TRAINING PROGRAM RAISING SYSTEM GENERAL INFORMATION Once rescuers reach the victim's location, it is often required to convert a lowering system to a raising to remove the victim and rescuers. This system also works well to raise a non-injured victim. The construction of this raising system involves converting a lowering system to a manpower raise system. Due to a lack of manpower, a mechanical advantage system may be necessary. If this is the case, Level II skills are required to assemble a mechanical advantage system. This block of training will utilize Level I skills only. (The information is contained in Volume 4, Chapter 6, Subject 10.) The necessary knots required are: - Figure eight stopper knot - Figure eight on a bight - Water knot - Wrap three, pull two anchor - Prusik Hitch CONVERTING A LOWERING SYSTEM TO A RAISING SYSTEM 1. Convert to a raising system with a lowering system in place: a. Lock off the main lowering line. b. Attach a prusik (the longer prusik if available) to the main line with red webbing (22'). Secure the red webbing to the main anchor point. (Volume 4, Chapter 6, Subject 10) c. Slide the prusik as far as possible towards the load to remove the slack. d. Slowly untie the friction device and transfer the load to the prusik. Insure that the prusik sets. e. Replace the friction device on the main line with a pulley. f. This completes a manpower raising system.
19 LOS ANGELES COUNTY FIRE DEPARTMENT CONTEXT TRAINING PROGRAM CONVERTING A LOWERING SYSTEM TO A RAISING SYSTEM cont: 2. Tending the rope system: a. Tend the safety line. Keep the tandem prusik belay slightly slack. b. Tend the raising line. 3. Raising the rescuer to the point of departure: a. Raise main and safety lines at a safe rate of speed, keeping the tandem prusik belay slightly slack. b. Stop the evolution when the rescuer approaches the starting point. FURTHER DESCRIPTIONS AND VARIATIONS OF ROPE SYSTEMS ARE ILLUSTRATED AND EXPLAINED IN VOLUME 4, CHAPTER 6.
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Ropes & Knots.pdf - Los Angeles County Firefighters Association

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