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A shunt device (Spelean shunt or Petzl Shunt): Allows changeover while ascending or
rappelling. This can be employed below a rappel device as an auto-block device or as
a self-belay on a separate fixed rope while ascending.

GENERAL RULES OF BELAYING:
• Designate a "brake hand" and "guide hand"

WHEN BELAYING, DO NOT LET GO OF THE ROPE WITH YOUR
BRAKE HAND!

• During a rescue, remain
independent of the system and
belay directly off an anchor instead
of a rescuer (Figure 86).
• Belayer should be tied in when
positioned near significant
exposure.
• Belayer sits behind or to one side
of the belay device for personal
safety. Figure 85- Belaying method technique typically
• In rescue work, keep a snug belay employed by recreational climbers, with device
attached to the belayer’s harness.
rope to avoid shock
forces.

• Gloves should be
employed by the
belayer.
• Belay practice and
proper technique are
essential.

Figure 86- Petzl Grigri 2
Belay Device. 1.) Configured
for belaying a personal load.
2.) Secured using a bight
pulled through the
attachment carabiner that is
tied off with a Half Hitch and
Overhand Knot.

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