Page 230 - Bài 1 ok_Neat

procedure will increase the
service life of the internal moving
brake and reduce the potential for
rope creep through the device.

The lowering speed is controlled
by the friction applied to the V-
Groove. Initially start with the
running end of the rope held
back toward the anchor in an
aggressive s-shaped bend in
order to maximize the range of
available friction. Friction is
reduced by changing the entry
angle of the rope into the MPD
and moving it forward. For
heavier loads, maximum friction Figure 90- Configuration of rope being managed
through the MPD. Original image © CMC Rescue.
is achieved by using the
Secondary Friction Post. To stop lowering and lock the rope in place, disengage the
Release Handle.

Figure 91- Activating the Release Handle of the MPD with a lift and
counterclockwise turning motion.

99 | Pa g e