ISC KT282A1-A2-A Serie Instrucciones Generales De Uso página 11

B How to setup the system
B1 First choose a suitable location to attach the climbing line. It is the climber's responsibility to
assess the structure and determine a suitable anchor to which to attach the climbing rope.
Once the climbing rope is in place, the hitch can be tied. The hitch used during the testing and
certification of the ISC rope wrench system is a Distel (5-wrap). Details of how to tie this hitch are
detailed in Section B (Page 7):
B2 Place the pulley below the hitch and fit one leg of the hitch and one leg of the tether to each
side of the pulley.
B3 Fit the connector through the small (lower) attachment eye of the pulley.
Fit the rope wrench / tether assembly to the climbing rope, above the hitch.
To do this open the slic pin, to allow the rope to be fitted above the sheave of the rope wrench. Pay
particular attention to ensure that you do not damage the rope when inserting it into the rope wrench
(near the slic pin).
B4 Replace the slic pin through both frames of the rope wrench.
B5 The rope wrench system should be installed such that the free movement within the system
and any fall path is unobstructed. Work as close to directly below the anchorage point as is possible
to avoid swing-fall injury. The benefit of the SRT system of work means that a redirect anchor can
be positioned above your location, to reduce the potential of swing-fall, without any detrimental
performance to the system.
B6 Connect the Rope Wrench system to the central attachment point of the harness using the
harnes attachment point connector (ISC KH204). A harness conforming to EN813, EN361, ANSI
z359 or ASTM can be used and must be adjusted to best fot the climber's body. Harnesses with
a chest attachment point may be used with the rope wrench and should be attached to the tether
attachment point, during ascent, to keep the system upright and to keep slack out of the system.
The chest attachment point should not be load-bearing. If connecting the Rope Wrench system
connector to an adjustable bridge, ensure that the system remains within reach.
Using the System
Once the system is setup and before working at height, whilst on the ground, check the grab function
of the hitch is reliable. Check that the hitch can be released and a controlled descent is possible.
Slide the rope wrench and friction hitch up the climbing rope as far as possible.
Lean back or crouch down so that the friction hitch grabs the rope. Proceed to the next step, only
if this step is successful.
Take a small jump and swing the legs forward, such that the entire bodyweight is put onto the
system and the climber bounces on the rope.
Look and listen for cracking or creaking from the supporting anchor point. Do not continue to climb
if there is any cracking or creaking observed or heard.
The rope wrench is NOT an ascender and plays no part in Ascent. It must however be pulled along
with the climber whilst they are ascending.
Before descending ensure the rope wrench has begun to engage. To do this move the rope wrench
as far up the climbing rope as possible, and while holding it there, gently release the grip of the
friction hitch so that the body weight can be partially shifted from the climbing rope to the tether,
which should then begin to engage the rope wrench.
To descend: whilst ensuring that gloves are worn, simply pull down gently on the top of the friction
hitch to release the grip on the climbing rope. The friction from the 'engaged' rope wrench and
partially engaged friction hitch will allow the climber to descend at a smooth controlled rate. At no
point during descent does the rope wrench need to be touched.
To stop the descent, simply let go of the friction hitch.
KT282 Rope Wrench System: Issue A June 2020 11