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Figure 88- Reverse side of MPD demonstrating rotation of the back plate
to permit loading the rope. Original image © CMC Rescue.

Prior to any use of the MPD, perform a safety check with the Parking
Brake unlocked and tug on the load end of the rope to ensure it
activates as intended.

OPERATING THE MPD

Firmly grip the rope tail entering the back side of
the MPD and apply friction over the Fixed Brake
V-Groove, bringing the running end of the rope
back toward the anchor in an S-shaped bend
(Figure 91).

The release handle is used to rotate the internal
moving brake off the rope, which permits rope
movement through the MPD to lower a load or
release tension. The manufacturer specifically
advises that the Release Handle be fully turned
counterclockwise in order to completely
unseat the moving brake from rope and
control primarily maintained with the friction Figure 89- Proper configuration for loading a
of the rope applied through the Fixed Brake rope into the MPD. Original image © CMC
Rescue.
V-Grove on the back side (Figure 92). This

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