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ISC RP280 Instructions For Installation/Set-Up, Operation, And Maintenance

Singing tree rope wrench
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Instructions for Installation/Set-up, Operation, and Maintenance
Intent and Purpose
The Singing Tree Rope Wrench is meant to be used by
arborists servicing, accessing, or maintaining trees in
conjunction with a Single Rope Technique (SRT)
configuration. The Rope Wrench is a friction control
device that allows a climber to ascend and descend a
single rope without changing equipment. When used as
part of a secure, hitch-based climbing system, it allows
the climber to smoothly control the rate of descent by
adding friction to the climbing system.
Basic Operation
The Rope Wrench has two gears, neutral and engaged,
as shown to the right. Figure 1a. also provides
nomenclature for parts of the Rope Wrench.
Neutral Gear. The climbing rope can pass freely
through the Rope Wrench.
Engaged Gear. Due to downward loading on the tether
attachment point, the climbing rope is bent into an S
shape by the Wheel and Slic Pin. The climbing rope
may still pass through the Rope Wrench, but the
Slic Pin and Wheel apply friction that slows it down.
SPECIAL ROPE WRENCH WARNINGS
 Never use as life support. Failure to use proper life support will lead to serious injury or death.
 For use only by arborists who are experienced in SRT. Using the Rope Wrench without proper training and experience with
SRT can lead to serious injury or death.
 Practice using device "low and slow" before using at height.
 Improper orientation of installation will cause the device not to function.
 Read and follow all of these instructions before using the device.
6/10/13 – 11
RP280 Singing Tree Rope Wrench
The Rope Wrench is NOT
 a life support device. It is, however, a load-
bearing device that may bear more than 50% of
the climbers weight during the climb;
 for use without a life supporting friction hitch or
similar device that will immediately stop descent
in an emergency situation;
 for use by persons novice to SRT techniques;
 an SRT training device.
Slic
Pin
Wheel
Figure 1a. Neutral Gear
1
Tether
Attachment
Point
Engage
Figure 1b. Engaged Gear

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Summary of Contents for ISC RP280

  • Page 1 RP280 Singing Tree Rope Wrench Instructions for Installation/Set-up, Operation, and Maintenance Intent and Purpose The Rope Wrench is NOT The Singing Tree Rope Wrench is meant to be used by  a life support device. It is, however, a load-...
  • Page 2: Optional Equipment

    Equipment Needed to Safely Climb Using the Rope Wrench System Equipment Checklist Equipment Requirements Rope Wrench. Always use the original Rope Wrench Required Equipment manufactured by ISC. Do not attempt to use a Rope Wrench  “home-made” Rope Wrench. Climbing Rope ...
  • Page 3 Use a pulley designed be large enough to ensure that when configured,  for climbing systems, such as the ISC Micro Pulley. no loading or interference with the gate occurs; Ascender(s). Mechanical ascent devices such as foot be secured such that no loading or interference ...
  • Page 4 Tree-Specific Hazards Note: It is imperative that the climber knows how to Insect and animal habitations that can become properly tie a friction hitch. There are many variables  to be considered when tying a friction hitch, such as agitated. temperature, humidity, level of expertise, desired Dead, rotten, or weakened branches can break ...
  • Page 5 Rope Wrench Set-Up Instructions The following nomenclature will be used for various Do not install the Rope Wrench upside-down (see parts of the Rope Wrench: Figure 5b for proper installation orientation.) It will not function at all if upside-down and may interfere with the friction hitch.
  • Page 6 Climbing Using the Rope Wrench System engaging the rope. The sit-stand method helps keep NOTICE: PRACTICE “LOW AND SLOW” slack out of the system. Practice all of the instructions in this section “low and slow” before ever attempting anything at height, WARNING: UNDERSTAND SRT regardless of experience or skill level.
  • Page 7 Limb-Walking with the Rope Wrench decay and test the redirect before trusting you full weight to it. Remember, trees are not rated. Being Anchor. The climbing rope must be tied to a secure able to judge the health and strength of trees as well anchor point or Tie in Point (TIP).
  • Page 8 Returning From a Limb-Walk Installation and Use. Before descending, install a pulley above the Rope Wrench using a desired Unlike a DdRT climbing system, an SRT climbing method. Pass the tail end of the climbing rope system (including the Rope Wrench climbing system) through the pulley.
  • Page 9 Rescue with the Rope Wrench rope. The lowering system should be well thought out and secure. Use backups so that if the belayer The Rope Wrench may be used as a tool both by loses grip on the rope there will be a backup. rescuers as well as by victims of accidents at height.
  • Page 10: General Maintenance

    Post-Climb Inspections 4. Ensure the wear on the Slic Pin is not excessive. The Slic Pin is prone to wear due to friction between The inspections performed after a climb should be the itself and the climbing rope. same as the inspections performed pre-climb. Particular 5.
  • Page 11 Regarding Standards Testing. ISC has carried out extensive testing with the Rope Wrench as a complete system in accordance with both European CE (EN353-2) and American ANSI (Z359.1) Standards. Whereas for several reasons it is not possible to gain a formal accreditation to either set of Standards, it is important to replicate 'real-life' use with a test method that is consistent and repeatable using different but compatible component parts.

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