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Hauling Systems. 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 offers 3:1, 4:1, 9:1 . Definitions.

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what is a hauling system
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 offers
    • 3:1, 4:1, 9:1
definitions
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 line
    • Soft or hard
  • Haul line: rope used to pull on
  • Load line: obvious…
definitions4
Definitions
  • Mechanical advantage pulley: moving pulley that is attached to the load or haul cam that adds MA
  • Piggyback 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
Elements of Hauling System
  • Cams
    • Soft and hard
  • Pulleys
    • Single, double and knot passing (Kootney)
  • Haul line
  • Load line
slide17
5:1
  • Simple:
    • Use two double pulleys
hauling system positions
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
commands
Commands
  • Haul
  • Haul slow
  • Set
  • Slack
  • Stop!
questions

Questions?

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