REF: 8807948

User guide - Braking device - 8 MK 100


Before using this device, you must read and understand all operating instructions. This user guide has been drafted in compliance with the EN 15151 -22012 standard for manual braking devices.


1-BILL OF MATERIALS (Figure no. 1)

I. Large ring II. Small ring


This braking device complies with the standard EN15151-2:2012. It is intended for canyoning, to be used with semi-static ropes conforming to EN1891:1998 with a diameter of between 9 and 9.5 mm for type B ropes and between 9.5 and 10.2 mm for type A ropes, and locking carabiners conforming to EN12275:2013. 
It is a Type 1 device under this standard: abseiling device without friction adjustment function. Be aware that this device does not have an automatic locking mechanism. It is imperative that you never let go of the "lifeline" (the free end of the rope that runs from the belay device to the ground) and that you constantly control it with your hand: risk of falling and death. 
This braking device is designed to be used with personal protective equipment to prevent falls from height in accordance with current standards. Harnesses certified to EN 12277:2015 + A1:2018 are the only body support equipment approved for canyoning. Make sure your device is compatible with the other components of the belay chain. 
Harnesses often have different characteristics, so ensure that you attach the belay system as instructed by your harness manufacturer. When using 2 strands, they must be of the same diameter. The commercial diameters given for ropes have a margin up to ± 0.2mm. The diameter of a rope and other characteristics may vary according to use. 
The braking effect of your device will vary depending on the diameter of the rope used, its gliding properties and its state of wear; a new rope can be slippery. The braking capacity of the device may be reduced when the rope is wet, damp (common in canyoning), or frozen. 
It is the user's responsibility to become familiar with the braking effect of the device before each use. Do not hesitate to add more brake. Thin ropes require more handling experience than large diameter ropes, as they are more difficult to brake during abseiling. 
The geometry of the carabiner used with the device has an influence on braking. We recommend the use of HMS brake carabiners with ferrules. 
Practice using your device in a safe area and become familiar with its performance on the ropes you are using. Be careful not to let your hair, clothing or hands get caught in any braking device during use as this can cause serious injury. Remember to carry out a visual check of the various knots in the belay chain before using the braking device.


This equipment may only be used by competent and trained persons or under the direct supervision of a competent and trained person. Do not use this equipment without prior training. Canyoning is dangerous. It is your responsibility to learn the necessary techniques for these activities and to use the equipment correctly. We cannot envisage all of the incorrect uses of this harness. Hence, any use other than that described in this user guide is strictly prohibited. Failure to respect any of these instructions may result in serious injury or death. The updated user guide is available on our support site: see our website



4.1. Harness installation (Fig. 2)

Pass a locking carabiner through the large ring (I.) and connect it to the roping point of the harness. Insert a loop of rope into the large ring, then pull it over the small ring (II.). - Remove the large ring from the carabiner and thread the small ring through. Finally, lock the carabiner. Refer to the diagram on the product to avoid installation errors and to reduce the risk of creating a cow hitch. Ensure that the carabiner ferrule is facing the user.

4.2. Abseiling (Figure 3a and 3b)

Refer to Section 3.1 for harness installation. Before tensioning the safety chain, ensure that the braking device is correctly positioned on the carabiner. When canyoning, it is essential to install a releasable abseil.
The releasable abseil can also help to manage rope friction. The user must take into account the air draught (clear space under foot) to safely control the descent as well as the presence or absence of a spray / immersion hazard.
In the case of a descent under/into a waterfall (wet descent - figure 3.a), do not use a friction hitch which could jam and cause drowning. Ensure that you hold the rope firmly as the system is not self-locking!
In the case of abseiling where there is no waterfall (figure 3.b) and no risk of becoming submerged, a back-up rope (friction hitch) can be used to minimise the risk of an accident should the user be forced to let go of the rope.
It is also possible to belay from below if the height of the rappel is limited and you can keep visual control of the person rappelling. During a long and fast abseil, there is a risk of overheating the belay system which can, in the worst case, damage the rope, your harness and cause burns.

  • USER GUIDE 8 MK 100
  • USER GUIDE 8 MK 100


Check the condition of your equipment before, during and after each use:
Check for cracks, deformities, corrosion, wear and tear or any other damage, 
Check there are no sharp edges due to wear that could damage the rope. 
If you have any doubts about the condition of your equipment or if your product has a defect, destroy it to ensure that it is not used again. 
A thorough inspection should be carried out at least once a year by a qualified individual. After a big fall, you product and the other elements in the belay chain should be reconstituted. The safety of the user is linked to maintaining the efficiency and strength of the product. 


This braking device must be cleaned with clean water and allowed to dry away from sources of heat. Store it in a dry, cool and ventilated place, away from light. 
Avoid all contact with chemical products (acids, bleach, oil, petrol, diesel, solvents, etc.) which could reduce the strength of your product and its braking effect. 
In case of contact with sea water or a marine environment, rinse and dry your material. Prolonged periods in storage in poor conditions may lead to your equipment becoming unusable. Check the condition of your equipment before each use (see paragraph 5). Any repair or modification of the product is strictly prohibited.


The lifespan of this braking device is not limited. 
The actual service life of your product will depend on the frequency and type of use for each individual user. 
During normal use and maintenance, we estimate a service life of 3 to 10 years for this braking device. 
This service life may be reduced to one use in the event of a major fall or intensive use involving friction, or in the event of extreme stress (exposure to dangerous chemicals, extreme temperatures, etc.). Ageing of this device may render it unusable. 
However, as long as the device meets the inspection requirements described above, there is no need to refurbish it. If you have any doubts about the condition of a product, have it checked by a competent and qualified person or destroy it. 


This braking device is guaranteed against manufacturing defects for 2 years from the date of purchase. Normal wear and tear as well as any damage resulting from misuse or modification of the product are excluded from the guarantee. 


UIAA: This product complies with the UIAA 129
XXMMYY: tracking number.  The first 2 digits correspond to the batch number and the next 4 digits to the month and year of manufacture.
8MK100: product name
EN 15151-2:2012: braking device in compliance with EN 15151-2:2012

  • USER GUIDE 8 MK 100

    : Refer to the manual before using this equipment

  • USER GUIDE 8 MK 100

    : SIMOND Logo (Manufacturer)


    : Rope routing

  • USER GUIDE 8 MK 100

     DECATHLON logo, group to which the SIMOND brand belongs.

  • USER GUIDE 8 MK 100

    Minimum and maximum rope diameter usable with the device