ASAT RD2 Self-Braking Descender with Integrated High Efficient Pulley User Manual

ASAT RD2 Self-Braking Descender with Integrated High Efficient Pulley

Product Information

The product is a rope descent device (RD2) used for controlled descent during working at heights. It is made primarily of aluminum alloy and stainless steel, ensuring durability and strength.

Product Usage Instructions:

Function Test:

To ensure proper functionality, perform a function test in a safe place. Pull the loading side of the rope to check if RD2 locks the rope in the desired direction and slides in the other direction.
Note : Higher weight, higher height, higher speed, and lower rope diameter may result in worse control performance.

Descending:

1. Hold the braking side of the rope with your right hand.
2. Control the handle with your left hand and rotate it according to the figure.
3. Gradually pull the handle to allow the rope to slide.
4. Control the descending speed by coordinating the movement of your left and right hand.

Note : Always hold the braking side of the rope during descent.

Additional Friction:

In situations where it is hard to control descent due to higher loading, lower diameter rope, or other factors, it is recommended to add additional friction to improve descent control.

Usage on an Anchor:

1. Before lowering, ensure the correct installation of the rope and perform a functional test.
2. Place a carabiner above RD2 as shown in the figure.
3. Clip the braking side of the rope into the carabiner.
4. Ensure that the rope slides on the braking groove during lowering.

Hauling:

RD2 integrates with a high-efficiency pulley. Follow the 1:1 hauling technique as shown in the figure.

Inspection:

1. Before each use, check the compatibility of RD2 with other devices in the system.
2. Check for the following:
3. Completeness of inspection record.
4. Legibility of markings.
5. Corrosion, deformation, crack, or abrasion on the device.
6. Any fastener that has fallen off or become loose.
7. Condition of the friction ridge near the bottom of the fixed friction plate.
8. The practical lifespan of the product depends on the type and intensity of usage, as well as harsh conditions or compatibility problems.

Information Related to Working at Height:

1. Working at height must comply with relevant standards and regulations of your country or region.
2. The minimum breaking strength (MBS) of the anchor should be at least 12kN or conform to EN795. The user’s position should be under the anchor point, and the link between the user and anchor should always be taut.
3. In a fall arrest system, maintain a required clearance below the user to avoid hitting the ground or any obstacles during a fall arrest procedure.
4. A harness is the only device allowable for supporting the body. Suspension in the harness unconsciously can result in serious injury or even death.
5. In a safety system, the strength of the system is based on the lowest strength part of the entire system.
6. There must be at least two persons working at height.
7. Conduct a risk assessment before work and take corresponding safety measures. Prepare a rescue plan and be able to implement it rapidly in case of danger.

Warning

• Activities involving the use of equipment are inherently dangerous and can lead to severe injury or even death. You must be responsible for your actions and decisions.
• Proper training and practice are essential before use.
• You must read and understand this instruction before use. It is impossible to describe all use methods in this instruction. Contact +86-10-59770511-1063; or info@asatsafe.com; if you have any doubts or difficulty in understanding this instruction.
• Keep this instruction well, or download the latest instruction on www.asatsafe.com.

ASAT RD2
Self-braking descender with integrated high efficient pulley.

Application field

Personal protective equipment (PPE) for fall protection.
This product meets the requirements of EU personal protective equipment Regulation 2016/425 .Complied with EN12841:2006 Personal fall protection equipment-Rope access systems-Rope adjustment devices, Type C –working line descender

Warning:
This product must not be used beyond its limits, nor be used for any purpose other than for which it is designed.

OVERVIEW

1. Cord hole,
2. Handle,
3. Moving side plate
4. Safety gate,
5. Fixed side plate
6. Primary attachment hole,
7. Pulley.
8. Side plate axle,
9. Moving braking plate,
10. Fixed braking plate and braking groove
11. Becket hole
12. Primary material: aluminum alloy, stainless steel.

Marking

Product Information

1. The name of product.
2. The direction of anchor or loading side.
3. Compatible with EN1891 A 10.5-11mm rope.
4. Logo to remind the user to read the instruction.
5. The braking side of rope.
6. The brand.
7. The loading side of rope.
8. Manufacture year.
9. Handle open degree.
10. CE marking, Notified body that carried out the EU type examination. （The EU Declaration of Conformity is available at www.asatsafe.com.
11. Complied with EN 12841:2006 Type C , WLL（working load limits）:150kg. WLL:200kg, descent speed ≤0.5m/s.
12. The name of the manufacturer.
13. Product individual number.

Wear indicator

1. There’s a wear indicator on fixed braking plate of RD2. When the first groove on braking teeth is worn apart. The descender must be retired.

Specifications on EN 12841-C

1. Complied with EN 12841:2006 type C ，Minimum rated load:30kg,WLL（working load limits）:150kg; WLL:200kg,descent speed ≤0.5m/s,
2. Descending speed: 2m/s max
3. Temperature range: -40℃ to 60℃
4. Rope: EN1891 Type A(ASAT Static rope AR-TS05)
5. Rope diameter:10.5-11mm
6. Descending height: 100m max
7. Weight: 790g

Usage

Install a locking carabiner on the primary attachment hole to connect to the harness or anchor.

Install the rope:

Fully open the moving side plate and handle, put the rope into the rope groove according to the mark, and close the plate. Make sure the safety gate is properly closed.

Function test:

In a safe place, pull the loading side of the rope to check RD2 locks the rope in the desired direction and slides in the other direction.

• rope locks in the loading side of the rope
• can be pulled out on the braking side of rope

Usage on a rope access system

• Type C rope adjustment devices are intended always to be used in conjunction with a Type A rope adjustment device connected to a safety line. Take slack between RD2 and anchor.
• Standard test on one person use:150kg max, 2m/s max, 100m max.
• In rescue situations, the maximum working load up to 200kg， descending speed ＜0.5m/s.
• Compatible rope : EN1891A 10.5-11mm on the test.(ASAT Static rope AR-TS05) RD2 is compatible with kern mantle rope(core+sheath) , rope diameter of 10.5-11mm （±0.3mm）. The compatibility depends on type, diameter, softness, and other conditions of the rope. Performing a test on compatibility of rope, if you’re not using rated diameter(10.5-11mm) rope.
• Cautions: Higher weight+ higher height+ higher speed+ lower rope diameter = worse control performance.
• Descending: hold the braking side of the rope with the right hand, control the handle with left hand, rotate the handle according to the figure, gradually pull the handle to allow the rope to slide, and control the descending speed by the cooperation of left and right hand.
• Cautions : Always hold the braking side of the rope during descent.
• With higher loading , lower diameter rope or other situations when it’s hard to control descent, adding additional friction to improve descent control.

Warning:

• Heavy weight with high speed in a long distance descent= quick release of gravitational potential energy, the high temperature generated on descender could damage the rope or lower control performance.
• Abnormal conditions on rope ,such as diameter, wet, icy… could influence control performance
• There is no anti-panic function on RD2，over pulling on handle could lead to lose control.
• Locking: rotate the handle clockwise to locking position before work.
  Cautions: Any object that prevents the handle from rotating to braking position will lead to fail to brake.

Usage on an anchor

Lowering

Before lowering, make sure that the installation of the rope is correct, and perform a functional test. Put a carabiner above RD2 according to the figure, clip the braking side of rope in it, and make sure the rope slide on the braking groove during lowering.

Hauling:
RD2 integrates with a high-efficiency pulley. 1:1 hauling according to figure .

Inspection

Before each use:

Check the compatibility of RD2 with other devices in the system. Check whether there’re any corrosion, deformation, crack or abrasion on device; whether any fastener fall off or become loose; whether the friction ridge near the bottom of the fixed friction plate has been worn to the level of the grooves; Check the handle returns automatically to its original position when released. Check if the markings are illegible.

During each use
Check the conditions of RD2 and its connections to the other equipment in the system. Check the braking and control performance of RD2.

Periodic inspection
Perform a comprehensive inspection of RD2 at least once every 12 months. The frequency of inspection depends on the frequency of use of the device. Inspections are carried out by qualified person, and the results must be recorded .

1. Whether the inspection record is complete.
2. Whether the markings are illegible.
3. Any corrosion, deformation, crack or abrasion on the device.
4. Whether any fastener fall off or become loose.
5. Whether the friction ridge near the bottom of the fixed friction plate has been worn to the level of the grooves;
6. The flexibility of the opening mechanism.
7. Whether RD2 can brake quickly on the rope and the handle function is normal.

When to retire the device

1. It has been subjected to a massive load, fall or accident.
2. It fails to pass PPE inspection.
3. Do you have any doubts about the reliability of the equipment?
4. You don’t know its full usage history.
5. The marking on the equipment is not legible.
6. Changes in regulations or standards.3

Destroy the products to prevent further use.

Note:

1. All personal protective equipment (PPE) are consumables.
2. There is no storage limit for the metal device in the proper environment.
3. The equipment may need to be retired only after one use because of misuse, accidents or compatibility problems.
4. The practical lifespan depends on the type and intensity of usage, and harsh environment(marine environment, extreme temperatures, sand and mud etc). The lifespan depends on PPE inspection.

Responsibility

1. You are responsible for your actions and decisions. If you can’t, don’t use it.
2. Your physical and mental conditions must meet the requirements of activities at height. Any physical or mental illnesses will lead to dangers.(Hypertension, heart disease, dizziness, fear of heights, etc. or other temporary physical or mental states, such as alcoholism, drug reactions, or abnormal mental states.)
3. Only qualified person can use this product or one under the supervision of a competent and experienced person can use this product.
4. Before using this product, you must undergo training which includes theory and practical operation.
5. When it is resold to other countries or regions, the instruction must be translated to local languages.。

Information related to working at a height

1. Working at height must comply with the relevant standards and regulations of your country or region.
2. The MBS of anchor is at least 12kN or conforms to EN795. User’s position should under the anchor point, the link between user and anchor should always be taut.
3. In a fall arrest system, it is essential to maintain a required clearance blow the user in order to avoid hitting the ground or any obstacle in a fall arrest procedure.
4. A harness is the only device allowable for supporting the body.
5. Suspension in the harness unconsciously can result in serious injury or even death.
6. In a safety system, the strength of the system is based on the lowest strength part of the entire system.
7. There must be at least two persons who’re working at height.
8. Risk assessment is necessary before work, and take corresponding safety measures. You must make a rescue plan and be able to implement it rapidly in case of danger.

Storage and transport

1. Proper maintenance and storage can extend the lifespan of the device.1) After the device is used, the liquid and other dirt remaining on the device must be cleaned and dried, and stored in a dry environment at 10 ° C to 30 ° C.
2. The storage environment of the equipment should be far away from the factors that may cause potential damage to the product, such as wear, UV, huge pressure, chemicals, sharp objects and heat sources.
3. The equipment should be stored in special bags or containers during transportation, and according to the requirements in the storage environment.
4. Cleaning: Use clean water(＜30℃) and soft brush to rinse the external and internal of the product. Do not use high-pressure water, industrial cleaning agent. Rinse afterwards and dry it naturally. Do not use heat source to dry the

Limited warranty

ASAT provides a 1-year warranty against any material or manufacturing defects.

Exclusions : normal wear and tear, deformation, oxidation, modifications or alterations, miscues, incorrect storage, poor maintenance , uses for which this product is not designed. ASAT is not responsible for any direct or indirect non-quality induced consequences.

RD2 inspection record sheet

Customer:

Description：
Serial number|

Inspection site

| date
 |  |
No.| Inspection item| result

1

| Pull the handle,then release, it can return to the original position automatically|

2

| Check the resilience of the movable baffle|

3

| Corrosion, deformation, cracks or abrasion on the body|
4| Sliding smoothness on the rope|
5| Engaging sensitivity|

6

| Whether the friction ridge near the bottom of the fixed frictionblock has been worn to the level of the grooves|

7

|

Falling off or looseness of the fasteners

|

8

|

Flexibility of the opening mechanism

|

9

|

Whether the signs on the body are recognizable and complete

|

Inspection conclusion

|

Inspected by（sign）

|

www.asatsafe.com

References

• 塞卡尔

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