hauling systems. what is a hauling system? combination of ropes and hardware assembled to form a...
TRANSCRIPT
What Is a Hauling System?
Combination of ropes and hardware assembled to form a mechanical advantage used to move a load from one point to another.
Named for the amount of advantage it offers3:1, 4:1, 9:1
Definitions
Directional pulley: stationary pulley used to change the direction of pull on a rope
Haul cam: camming device that secures the haul line to the load lineSoft or hard
Haul line: rope used to pull on
Load line: obvious…
Definitions
Mechanical advantage pulley: moving pulley that is attached to the load or haul cam that adds MAPiggyback system: Common name given to a 4:1 MA (it is two 2:1 MA systems piggy backed to each other)Ratchet cam: Holds the load line to keep from losing what you have gained with MA
Elements of Hauling System
CamsSoft and hard
PulleysSingle, double and knot passing (Kootney)
Haul line
Load line
Hauling System Positions
Haul team: runs haul line
Ratchet tender: tends ratchet cam
Team leader: gives commands
Safety tender: operates Munter hitch
Load watch: Communicates position of load to team leader