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Hauling Systems

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Haul line: rope used to pull on. Load line: obvious... Elements of Hauling System. Cams. Soft and hard. Pulleys. Single, double and knot passing (Kootney) ... – PowerPoint PPT presentation

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Title: Hauling Systems


1
Hauling Systems
2
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

3
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

4
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

5
Elements of Hauling System
  • Cams
  • Soft and hard
  • Pulleys
  • Single, double and knot passing (Kootney)
  • Haul line
  • Load line

6
Munter
7
(No Transcript)
8
21
9
31 Z Rig
10
(No Transcript)
11
31 Z Rig
12
31 Z Rig
13
41 Piggyback
14
41 Piggyback
15
41 Piggyback
16
(No Transcript)
17
51
  • Simple
  • Use two double pulleys

18
61
19
91
20
(No Transcript)
21
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

22
Commands
  • Haul
  • Haul slow
  • Set
  • Slack
  • Stop!

23
Questions?
  • Lets Build Some Systems!
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