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Item Number

 333000, 13 mm Rope Model

UL Classified to NFPA 1983-2012 Edition

•  Pulley

 General Use

•  Descent Control 

General Use

•  Belay Device 

General Use

Rope Diameter

 13 mm* (1/2 in)

Weight

 1.1 kg (2 lb 8 oz)

Rated Strength

•  Pulley 

44 kN (9,891 lbf)

•  Descent Control

 23 kN (5,170 lbf)

•  Becket

 33 kN (7,418 lbf)

Rope used for certification 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 Classified to NFPA 1983-2012 Edition

•  Pulley

 General Use

•  Descent Control 

Technical Use

•  Belay Device 

Technical Use

Rope Diameter

 11 mm (7/16 in)

Weight

 1.1 kg (2 lb 8 oz)

Rated Strength

•  Pulley

 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 fixed 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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Summary of Contents for MPD

Page 1: ......

Page 2: ...AKING STRENGTH AND HOLDING LOAD TEST USING THE FOLLOWING ROPE NEW ENGLAND ROPES KMIII CMC ITEM K05160 13 mm OR NEW ENGLAND ROPES KMIII CMC ITEM K05140 11 mm AS APPLICABLE KMIII rope used for certification For information on performance with other life safety ropes please contact CMC Rescue Thank you for selecting the CMC Rescue MPD for your technical rope rescue systems Truly a multi purpose devic...

Page 3: ...Lower 8 To Stop Lowering 11 Using the MPD as a Belay Device 12 Belaying a Lowering System 12 Belaying a Raising System 15 Mirrored Systems 15 Using the MPD in a Mechanical Advantage System 16 Additional Information 17 High Lines and Guiding Lines 17 Care and Maintenance 17 Inspection and Repair 18 Specifications 19 Quick Reference Guide 20 V2 3 1 ...

Page 4: ...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 we...

Page 5: ...ter 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 Efficiency Pulley with One Way Bearing Front Plate Front Cover Release Handle Parking Brake Becket 3 ...

Page 6: ... anchor using an appropriate locking carabiner or screw link through both the front and back plates PARKING BRAKE A unique feature of the MPD is the Parking Brake which when locked prevents inadvertent letting out of the rope The design of the Parking Brake allows for rope to be taken in if required without having to unlock it although increased rope friction will be encountered Lock the Parking B...

Page 7: ...Parking Brake must be unlocked to load Running End Load End REVIEW DIAGRAM FOR PROPER LOADING 1 ROTATE BACK PLATE FULLY OPEN 2 INSERT ROPE 3 Running End Load End CLOSE AND SECURE BACK PLATE 4 Anchor 5 ...

Page 8: ...RAKE AND GIVING A QUICK TUG ON THE LOAD END OF THE ROPE TO ENSURE PROPER RIGGING PRIOR TO COMMITTING A LIVE LOAD OVER AN EDGE WHEN RIGGED PROPERLY THE MPD WILL LOCK UP THE MPD MUST BE PROPERLY RIGGED PRIOR TO USE Running End Tug on Load End RIGGING THE MPD 6 ...

Page 9: ... their grip on the running end of the rope If the MPD is to be left unattended or if you need to release your grip on the running end of the rope for more than a short time lock the Parking Brake first and then secure the MPD by tying off the running end of the rope around the load end with an appropriate tie off method 7 ...

Page 10: ...llenging part of an operation Using the MPD as a descent control device allows for a high degree of responsiveness and control As the rescuer or rescuer and patient approach the edge it is very easy to take in rope through the MPD to prepare for the edge transition Pretensioning of the Main Line is also simplified because of this TO LOWER To lower firmly grip the running end of the rope and tightl...

Page 11: ... the handle slowly counterclockwise all the way to completely unseat the Moving Brake from the rope controlling the rate primarily with friction on the Fixed Brake V Groove Maintaining the S shaped bend in the rope will improve the function of the braking mechanism in the event it is needed and will increase the service life of the Moving Brake reducing the potential for rope creep through the dev...

Page 12: ...ope TO LOWER Unlock the Parking Brake Grasp the Release Handle and pull up to engage the release mechanism 1 and then rotate counterclockwise to lower 2 Rotating the Moving Brake off the rope may significantly increase the service life of the MPD 1 USING THE MPD AS A DESCENT CONTROL DEVICE ALWAYS MAINTAIN AN S SHAPED BEND IN ROPE 2 Pull up to engage the release mechanism Rotate counterclockwise to...

Page 13: ... 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 ALWAYS MAINTAIN A FIRM GRIP ON THE RUNNING END OF THE ROPE WHEN THE PARKING BRAKE IS NOT LOCKED 11 Load ...

Page 14: ...suspended above the terrain as when using a high directional then a dynamic fall onto the Belay Line is likely Among rescuers this is widely recognized as potentially the worst case dynamic event in rescue work While every effort should be made to rig and operate systems to minimize the potential for such dynamic events the MPD is designed and has been tested using 11 mm and 13 mm KMIII Rope UL Ce...

Page 15: ...ld fail the increased load on the other descent control device will cause an increase in rate of descent While the MPD is an effective belay device capable of safely arresting a falling load when used as a descent control device you are manually overriding the belay function This could result in increased stopping distances if not using proper technique Therefore in a Shared Tension lower it is im...

Page 16: ...he load and your hand The other hand feeds the running end into the MPD so that the rope is unseated from the sheave tread This will reduce rope drag on the sheave and keep the MPD from inadvertently locking up This technique allows the operator to match the speed of the Main Line In contrast the technique of trying to simultaneously shuffle rope into and out of the MPD will result in a repetitiou...

Page 17: ... Line by pulling it hand over hand through the MPD MIRRORED SYSTEMS Rope rescue systems where both rope systems are capable of simultaneously performing as a Main Line and a Belay Line are referred to as Mirrored Systems Unlike the MPD most descent control devices are incapable of performing both functions concurrently Ideally a true independent Mirrored System is achieved with maximum flexibility...

Page 18: ...ctively locks the rope during pulley system resets with minimal settling in distance To convert to an M A system simply attach a rope grab and traveling pulley to the Main Line and a simple 3 1 mechanical advantage is created The MPD has a built in Becket that can be used to attach a change of direction pulley to allow higher mechanical advantage systems to be built e g simple 5 1 or compound 9 1 ...

Page 19: ...or email support cmcrescue com CARE AND MAINTENANCE Clean and dry the MPD after each use to remove any dust debris or moisture Do not store the MPD with equipment where it may be exposed to moist air particularly where dissimilar metals are stored together User Information shall be provided to the user of the product NFPA Standard 1983 recommends separating the User Information from the equipment ...

Page 20: ...xcessive wear or any other factor that may prevent proper function If any significant 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 ret...

Page 21: ...or certification 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 Classified to NFPA 1983 2012 Edition Pulley General Use Descent Control Technical Use Belay Device Technical Use Rope Diameter 11 mm 7 16 in Weight 1 1 kg 2 lb 8 oz Rated Strength Pulley 44 kN 9 891 lbf Descent Control 20 kN 4 496 lbf Becket 33 kN 7 418 lbf Photos used...

Page 22: ...ixed Brake V Groove Belay Edge Transition 1 Hold load end of rope hand tight 2 Unlock Parking Brake 3 Feed running end of rope into MPD 4 Maintain firm grip on running end to activate belay Belay Shared Tension Systems 1 Hold rope firmly back against Fixed Brake V Groove maintaining S shaped bend in rope 2 Unlock Parking Brake 3 Pull and turn Release Handle full open 4 Control tension with frictio...

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