INSPECTION
Inspect the MPD according to your department’s policy for inspecting life
safety equipment. Equipment should be inspected after each use by an
inspector that meets your department’s training standard for inspection of
life safety equipment. Record the date of the inspection and the results in
the equipment log. Each user should be trained in equipment inspection and
should do a cursory inspection before each use.
The MPD should be inspected after each use to ensure that damage did not
occur. When inspecting, look for any damaged, dirty or sticking components,
excessive wear or any other factor that may prevent proper function.
If any
signifi cant damage is observed, the equipment should be retired from
service
.
The MPD must be inspected after an impact load has occurred. Inspect for
any damage to the components. Evaluate the sheave for smooth operation
of the bearing.
If any damage or indications of improper function are
noted, the MPD should be immediately retired from service
.
REPAIR
All repair work shall be performed by the manufacturer. Other work or
modifi cations may void the warranty and shall release CMC Rescue, Inc.
from all liability and responsibility.
For information or service contact:
CMC Rescue, Inc.
P.O. Box 6870, Santa Barbara, CA 93160-6870 USA
(800) 235-5741 or (805) 562-9120
cmcrescue.com
As with all new rescue equipment, the MPD should be thoroughly inspected
before being placed in service. The MPD is a robust unit but should still
be inspected after each use to ensure that damage did not occur. When
inspecting, look for any damaged, dirty or sticking components, excessive
wear or any other factor that may prevent proper function.
Secondary
Friction Post
Back
Plate
Moving
Brake
Fixed Brake
with V-Groove
High-Effi ciency
Pulley with
One-Way Bearing
Front
Plate
Front
Cover
Release
Handle
Parking
Brake
Becket
ABOUT THE MPD
3
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Item Number
333000, 13 mm Rope Model
UL Classifi ed to NFPA 1983-2012 Edition
• Pulley
General Use
• Auxiliary Equipment
General Use
• Descent Control Device
General Use
Rope Diameter
13 mm* (1/2 in)
Weight
1.1 kg (2 lb 8 oz)
Rated Strength
• Pulley and Auxiliary
44 kN (9,891 lbf)
• Descent Control
23 kN (5,170 lbf)
• Becket
33 kN (7,418 lbf)
Rope used for certifi cation rounded up to 13 mm per NFPA 1983.
*Designed for use with 12.5 to 13 mm rope.
Item Number
333010, 11 mm Rope Model
UL Classifi ed to NFPA 1983-2012 Edition
• Pulley
General Use
• Auxiliary Equipment
General Use
• Descent Control Device
Technical Use
Rope Diameter
11 mm (7/16 in)
Weight
1.1 kg (2 lb 8 oz)
Rated Strength
• Pulley and Auxiliary
44 kN (9,891 lbf)
• Descent Control
20 kN (4,496 lbf)
• Becket
33 kN (7,418 lbf)
Photos used throughout this manual are Item Number 333000
MPD 13 mm Rope Model.
13 mm Rope Model
11 mm Rope Model
2
THE MPD
The MPD is designed for use with static or low-stretch kernmantle life safety
rope. Use only rope that has been inspected, is of proper size and is in good
condition. The user should be aware that environmental conditions may
have an effect on the rope’s interaction with the MPD. For example, water
saturated ropes, icy ropes or ropes otherwise covered with substances such
as clay, tar or oil will, to varying extents, affect the rope’s interaction with the
MPD. The user should be aware of these conditions and make necessary
adjustments, such as adding additional friction. Saturated ropes or ropes
covered with foreign material may not progress smoothly through the MPD,
possibly resulting in a ratcheting type of progression as the rope moves
through the device. Additionally, rope that is dirty, sandy or muddy may
cause increased wear to the fi xed and moving brakes, which may reduce
the device’s ability to arrest and hold a load.
RELEASE HANDLE
The Release Handle is used to rotate the Moving Brake off of the rope,
allowing rope movement through the device for lowering a load or releasing
tension on a line, such as with a guiding line or track line. Pulling the
Release Handle out engages a set of gears connected to the Moving Brake.
To minimize wear on the Moving Brake, it is recommended to turn the
handle fully counterclockwise to completely unseat the Moving Brake from
the rope and to control the rate primarily with friction of the rope applied
against the Fixed Brake V-Groove. To stop lowering and lock the rope,
disengage the Release Handle.
NOTE
Although there is a return spring to
assist in disengaging the Release Handle, it is the user’s responsibility to
ensure that the handle is fully pushed in when not actively lowering.
IF AT ANY TIME YOU NOTICE A SUDDEN CHANGE IN SPEED OR TENSION
ON THE ROPE RUNNING THROUGH THE MPD, IMMEDIATELY LET GO
OF THE RELEASE HANDLE (DISENGAGE) TO STOP THE LOAD!
!
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