Hauling Systems

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Hauling Systems
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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
• 31, 41, 91

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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

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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 41 MA
  (it is two 21 MA systems piggy backed to each
  other)
• Ratchet cam Holds the load line to keep from
  losing what you have gained with MA

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Elements of Hauling System

• Cams
• Soft and hard
• Pulleys
• Single, double and knot passing (Kootney)
• Haul line
• Load line

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Munter
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21
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31 Z Rig
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31 Z Rig
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31 Z Rig
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41 Piggyback
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41 Piggyback
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41 Piggyback
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51

• Simple
• Use two double pulleys

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61
19
91
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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

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Commands

• Haul
• Haul slow
• Set
• Slack
• Stop!

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Questions?

• Lets Build Some Systems!