Petzl GRIGRI2 Manual de usuario

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 1

Welcome to “Product Experience”.

Here you will ﬁnd known usage techniques for certain products.

This technical information comes from the product knowledge of the Petzl team and from the

experience of users worldwide.

The level of experience necessary to perform each technique is indicated by a pictogram (see

opposite):beginner, certiﬁed, or expert.

Our goal is to (eventually) offer a complete set of techniques.

Your help is important to us; do not hesitate to give us your comments and suggestions.

Thank you and good reading.

PRODUCT EXPERIENCE

To go beyond...

The Product Experience

• is a supplement to the information in the Instructions For Use.

• is inseparable from the Instructions For Use.

Beginner technique

Technique usable by a trained

practitioner of the activity

Technique for a certiﬁed

practitioner

Technique for a person trained and

certiﬁed in the activity

Expert technique

Technique only for experts in the

activity

Anchor

Load

Climber

Fall

Hand

Harnesses

Victim

GRIGRI EXPERIENCE

• Read the instructions for use carefully before looking at the following techniques.

• You must have already read and understood the information in the Instructions For Use to be

able to understand this supplementary information.

• Mastering these techniques requires specic training.

• Work with a professional to conrm your ability to perform these techniques safely and

independently before attempting them unsupervised.

FAILURE TO HEED ANY OF THESE WARNINGS MAY RESULT

IN SEVERE INJURY OR DEATH

IMPORTANT / REMEMBER

Legends

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 2

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Summary

GRIGRI EXPERIENCE

• Reminder of rope compatibility:GRIGRI and GRIGRI2 p. 3

> Belaying / Protecting

•Belaying reminders:errors to avoid p. 4

• Dynamic belaying p. 8

• Belaying with the GRIGRI anchored to the ground:WARNING, Danger! p. 9

• Unblocking a rope that is jammed behind the cam p. 10

• Multipitch climbing p. 11

- Belaying a second with the GRIGRI on the harness, using a directional p. 11

- Belaying a second directly off the anchor p. 12

• A Self-belaying is prohibited! p. 13

> Descending

• Descending on one strand of rope p. 14

• Descending on one strand with additional braking p. 16

• Tying off the GRIGRI to have your hands free p. 16

• Lowering with the GRIGRI on the harness, using a directional p. 17

• Lowering from a xed anchor-point p. 18

• Self-lowering p. 19

> Climbing / Progressing

• Occasional rope climbing p. 20

• Tensioning a tyrolean p. 21

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 3

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Introduction

GRIGRI EXPERIENCE

Today, GRIGRI use is widespread. It can be found at crags, gyms,

and in the mountains... Used mainly as a belay device, it has other

uses that are explained below.

WARNING, as with all climbing and mountaineering activities, it is essential to master

the techniques and understand the limitations on using this product in these activities.

Practice the techniques presented in a safe environment before using them in a real

situation.

Both GRIGRI are compatible with single dynamic ropes (CE EN892). Only the approved rope diameters

differ. WARNING, even if you use a rope in the approved diameter range, you must be vigilant concerning

the functioning of the GRIGRI with this rope.

The compatibility between the GRIGRI and the rope used is dependent on more than just the rope’s

diameter. The rope’s texture, sheath treatments on new ropes, moisture, the state of wear, and ice play an

important role in the performance of your GRIGRI, in belaying, and also in descending.

Whenever you need to use a rope other than your usual rope, take care and familiarize yourself with

its behavior with the GRIGRI in belaying and descending.

•Reminder of rope compatibility

GRIGRI and GRIGRI2

8,9 9 10 11

ropes mm

GRIGRI2

GRIGRI

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 4

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- Giving slack quickly.

> Belaying / Protecting

•Belaying reminders:errors to avoid

GRIGRI EXPERIENCE

Remember that the correct technique for belaying is as follows.

For effective and secure belaying, this is the technique to use.

- Primary belaying position.

This action must be momentary. Once the leader has clipped, your hand must return to the primary belaying position. Continuous

contact with the device can lead to misuse.

This technique allows the braking side of the rope to always be held by the hand (with at least three ﬁngers) and it limits the risk of

blocking the cam’s action.

Hold the rope

The index ﬁnger

supports

the GRIGRI

The thumb

presses on

the cam

Always hold

the braking side

of the rope.

Taking up slack

Stopping a fall

Giving slack

Taking up slack

Stopping a fall

Giving slack

Taking up slack

Stopping a fall

Giving slack

The rope

is still held

(3 ﬁngers

minimum)

The thumb

presses on

the cam

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 5

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GRIGRI EXPERIENCE

Note that the use of incorrect belay technique is the primary risk factor in an accident, especially when the belayer is surprised by a

fall. If you recognize yourself in any of these illustrations of incorrect technique, adopt the technique presented at the beginning of

this paragraph.

I hold the GRIGRI with my entire hand

I incorrectly place my index ﬁnger

I give slack without holding

the braking side of the rope

I hold the climber side of the rope

We place great emphasis on the need to hold the braking side of the rope.

But why?

The term “belay device with assisted braking,” which describes the GRIGRI, indicates that it is not an autolocking device. In fact,

you may notice that if you slide your rope slowly through the device (especially for small diameter rope), it does not necessarily

lock, and the rope slides freely through it. It’s when you pull the braking side of the rope that the cam rotates to brake the rope.

It is also important to stress the fact that any blocking of the device or the cam will negate the braking action on the rope. This is

why it is essential to avoid:grasping the device with your whole hand, keeping your thumb permanently on the cam, blocking the

cam,etc.

Here are three examples of causes of a ground fall, seen at the crags or in the gym.

1 - Incorrect GRIGRI belay techniques

It is difﬁcult to make an exhaustive list of all incorrect techniques. Here are some illustrations:

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 6

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GRIGRI EXPERIENCE

2 - Bad reexes

When a person is surprised while holding an object in the hand, one of the ﬁrst reﬂexes is to hold that object more tightly. Imagine

this situation in the case of a belayer holding a GRIGRI with the whole hand, at the moment the climber falls...

In this case, the belayer clenches the GRIGRI, without holding the braking side of the rope, and the climber falls to the ground.

Another bad belayer reﬂex is to grip the climber’s side of the rope.

In this case, the belayer burns his hand with the rope and worse, prevents the GRIGRI’s cam from rotating, which then cannot

brake the rope. Here also, the climber falls to the ground.

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 7

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GRIGRI EXPERIENCE

3 - Belayer inattention The belayer is talking, looking elsewhere...

Look at this example:the belayer, hands in pockets, is not at all attentive to the climber, who is in the process of

clipping with far too much slack...

To ﬁnish, ground falls are often the result

of multiple factors:poor technique, inattention,etc.

It is up to you to limit these factors.

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 8

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> Belaying / Protecting

•Dynamic belaying

GRIGRI EXPERIENCE

Some think it is difﬁcult to

belay dynamically with the

GRIGRI. But it is the belayer,

not the belay device, that plays

the primary role in dynamic

belaying.

The key to dynamic

belaying:step or make a

small jump forward when the

climber falls. We also stress

that dynamic belaying does

not mean keeping 3-4m of

slack in the climber’s side of

the rope:this does not reduce

the force of a fall. In addition,

in the case where the climber

has not gained enough height,

it increases the risk of a ground

fall.

In any case, it is necessary to

be attentive and vigilant while

belaying, so that potential falls

can be anticipated. Remember

that where there is a risk of a

ground fall, or striking a ledge,

a dynamic belay should not be

used.

It takes practice to master

dynamic belaying. To practice,

start with falls sufﬁciently high

relative to the ground (for

example, when the climber is

nearing the end of a pitch).

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 9

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This technique is strongly discouraged because it has been the root cause of many ground falls. In fact, if the GRIGRI is positioned

at the wrong height for the belayer, he risks involuntarily blocking the cam and preventing it from braking the rope.

In addition, with a GRIGRI anchored to the ground, controlling the descent is more difﬁcult than with the GRIGRI on the belayer

because the weight of the climber cannot be felt. Finally, this technique does not allow for dynamic belaying.

> Belaying / Protecting

• Belaying with the GRIGRI anchored to the ground:

WARNING, Danger!

GRIGRI EXPERIENCE

PRODUCT EXPERIENCE - GRIGRI2 D145030A (180111) 10

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In certain speciﬁc cases (for example, assisting the climber in regaining a high point after a fall, GRIGRI ﬁxed on a carabiner

attached to two points, rope climbing, etc.), the rope can become jammed behind the cam. Don’t worry:this jamming does not

damage the rope. Our internal testing shows that even with the smallest diameters, the rope remains intact, even if the climber

falls. Note also that even with the rope in this position, the cam functions normally and the climber’s fall will be arrested.

Unjamming the rope is simple. Always hold the braking side of the rope when performing this action. If the rope is not under

tension, push on the side of the device to reposition the climber side of the rope in the cam groove. If the rope is already under

tension, simply pull on the braking side of the rope.

> Belaying / Protecting

•Unblocking a rope that is jammed behind the cam

GRIGRI EXPERIENCE

Initial state: the rope is jammed

Unjamming, if the climber side of the

rope is under tension: pull on the braking

side of the rope

Unjamming, if the climber side of the

rope is not under tension: push on the

device to reposition the climber side of the

rope in the cam groove

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