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INTRODUCTION TO THE 

CRITR

The Canyon Werks’ 

CRITR

 rappel device 

lets you easily vary the friction while 

on rappel for both single and double 

line rappels using 8mm-10mm rope. 

The 

CRITR

 minimizes rope twist, and 

is reversible to help it wear longer in 

sandy conditions. The 

CRITR

 is also 

easy to tie off. Machined from 7075 T6 

Aluminum Alloy.

RAPPEL SAFETY

Rappelling is one of the most dangerous 

activities at height and it accounts for 

numerous serious accidents. Specific 

instruction and supervised practice in 

a controlled situation is mandatory. If 

you have any doubt as to your ability 

to safely accomplish your rappel you 

MUST be belayed.

TEST YOUR SYSTEM

Friction will vary depending on rope 

size, type, and condition. Test with your 

rope in a safe manner to determine 

compatibility and the particular friction 

settings you will use. Remember that 

rope weight adds friction and will 

become less as you get closer to the 

end of the rope.

LOCKING CARABINER 

ATTACHMENT

The 

CRITR

 is designed for a tight 

fit with a 12mm HMS style locking 

carabiner such as a Petzl Arrache, Petzl 

William, Rock Exotica Pirate, or Black 

Diamond Rock Lock Carabiner. Always 

use a LOCKING CARABINER with a full 

round or oval cross-section. DO NOT 

use ultra-light carabiners with ‘I-beam’ 

construction.

ADDING FRICTION

Plan ahead! Add friction early; BEFORE 

control of the descent becomes 

difficult! If you lose control of a rappel 

for ANY reason you WILL NOT be able 

to recover and serious injury or death 

will probably occur.

ALWAYS USE PROTECTIVE  

EQUIPMENT

Sturdy gloves and a helmet should 

always be worn when rappelling or 

canyoneering with the 

CRITR

.

ALWAYS CHECK FOR WEAR

Dirty/sandy ropes are very abrasive and 

quickly wear out ALL rappel devices and 

carabiners. Flip the 

CRITR

 over (reverse 

sides) OFTEN in sandy conditions 

to spread the wear and reduce the 

formation of SHARP edges on the 

CRITR

. Retire the 

CRITR

 when any part 

becomes worn 1/3 of the way thru or if 

sharp edges develop.

DON’T GET ANYTHING 

JAMMED IN THE 

CRITR

 WHILE 

RAPPELLING

Secure all hair, clothing, straps, etc. and 

keep hands away from the 

CRITR

 while 

on rope!

DON’T RAPPEL OFF THE END 

OF THE ROPE

Tie a large knot at the end of your rope, 

or have the end tied SECURELY to a 

canyoneering rope bag. Always make 

sure your rope end(s) touch bottom 

BEFORE you begin the rappel.

YOU MUST ALWAYS GRIP THE 

FREE END OF THE ROPE

You can get some backup protection 

thru proper use of a Prusik or other 

method, but you must ensure it will 

catch. Prusik-style back-ups are NOT 

recommended if rappelling into water. A 

proper ‘fire-mans’ belay from a partner 

below should be learned, practiced, and 

provided to all members of your group 

regardless of experience level.

LIMITATIONS ON USE

It is impossible to imagine all the ways 

this equipment can be misused. It must 

only be used by physically fit users who 

have practiced in a controlled situation.

SELF RESCUE

You must be able to free yourself if 

you get stuck while rappellling. This is 

a simple matter if you are trained and 

prepared, but can be fatal if you are not.

HEAT

The longer the rappel, the more the 

CRITR

 can heat up. Protect yourself 

from a hot 

CRITR

.

BELAY SLOT

The 

CRITR

 has a belay slot that will fit 

up to 10mm rope. This is not intended 

to belay a leader fall. Only use in a low 

WEIGHT: 4.7 oz. (133gm)

HEIGHT: 5.0 inches

WIDTH: 3.9 inches

Max Rope – Single Rope 8-10mm

Max Rope – Double Rope 8-10mm

MANUFACTURE INFO

    14         03           A        001      

Year   Month   Model   Lot #

1. Head
2. Reduced radius edges

3. Arms with ‘paws’

4. Center slot

5. Carabiner connection point 

     with O Ring
6. Legs with ‘paws’

angle, low fall potential situation.  

Test first!

INSPECTION BEFORE & AFTER  

EACH USE

Check for cracks, deformation, wear, 

corrosion, etc.

INSPECTION DURING USE

Regularly inspect and monitor your 

system, confirming the carabiner is 

locked and the 

CRITR

 is positioned 

properly.

2941 Brookspark Drive, North Las Vegas, NV 89030

www.canyonwerks.com / 702-649-1077

made in the USA

Anatomy of a 

CRITR

CANYON WERKS, LLC

RETIRE FROM SERVICE & 

DESTROY IF THE EQUIPMENT:

• Does not pass inspection or there is 

any doubt about its safety.

• Is misused, altered, damaged, 

dropped from a height, exposed to 

harmful chemicals etc.

• Consult the manufacturer if you have 

any doubts or concerns.

RESPONSIBILITY

Thorough and specific training is 

absolutely essential before use. Being 

at height is dangerous and it is totally 

up to you to reduce the risks as much 

as possible – but the risks can never 

be eliminated. You must personally 

understand and assume all risks and 

responsibilities of using this equipment. 

If you cannot or do not want to do this, 

do not use this equipment.

LIFETIME

10 years maximum, but will often be 

much less depending on conditions and 

frequency of use; it could even be a 

single use in some cases.

MAINTENANCE & STORAGE

Clean if necessary with fresh water; 

then allow to dry completely. Store in a 

dry place away from extremes of heat & 

cold and avoid exposures to chemicals.

REPAIRS TO EQUIPMENT

Are only allowed by the manufacturer.

DETAILED INSPECTION

In addition to inspection before, 

during and after each use, a detailed 

inspection by a competent inspector 

must be done at least every 12 months 

or more frequently depending on 

amount and type of use. Make a copy 

of these instructions and use one as the 

permanent inspection record and keep 

the other with equipment. It is best 

to issue new gear to each user so they 

know its entire history.

WARNING!

• These activities are inherently dangerous and carry a big risk of injury or 

death that cannot be eliminated.

• It is the user’s responsibility to obtain specific training and to follow safe 

practices. These instructions DO NOT tell you everything you need to know.

• DO NOT USE unless you can and will understand and assume all risks and 

responsibilities for all damage/injury/death that may result from use of this 

equipment or the activities undertaken with it.

• Carefully check equipment before and after each use.

• You must always have a backup – never trust a life to a single tool.

• Everyone using this equipment must be given a copy of these instructions 

and thoroughly understand them and refer to them before each use.

• You must have a rescue plan and the means to implement it. Inert suspension 

in a harness can quickly result in death!

CRITR

rappel

device

canyoneering

for

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