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1.0 APPLICATIONS

1.1 PURPOSE:

3M Self-Retracting Devices (SRDs) are designed to be a component in a personal fall arrest system (PFAS). Figure 1 illustrates

SRDs covered by this instruction manual and their typical applications. They may be used in most situations where a combination of worker

mobility and fall protection is required (i.e. inspection work, general construction, maintenance work, oil production, confined space work,

etc.).

1.2 STANDARDS:

Your SRD conforms to the national or regional standard(s) identified on the front cover of these instructions.

1.3 TRAINING:

This equipment is intended to be used by persons trained in its correct application and use. It is the responsibility of the user to assure

they are familiar with these instructions and are trained in the correct care and use of this equipment. Users must also be aware of the operating

characteristics, application limits, and the consequences of improper use.

1.4 LIMITATIONS:

Always consider the following limitations and requirements when installing or using this equipment:

•

Capacity:

This SRD has been compliance tested for use by one person with a combined weight (clothing, tools, etc.) from 130 lbs (59

kg) to 310 lbs (140 kg).

Make sure all of the components in your system are rated to a capacity appropriate for your application.

•

Anchorage:

Anchorages selected for fall arrest systems shall have a strength capable of sustaining static loads applied in the

directions permitted by the system of at least:
1.

5,000 lbf (22.2 kN) for non-certified anchorages, or

Two times the maximum arresting force for certified anchorages.

When more than one fall arrest system is attached to an anchorage, the strengths set forth in (1) and (2) above shall be multiplied by

the number of systems attached to the anchorage.

FROM OSHA 1926.502 AND 1910.140:

Anchorages used for attachment of personal fall arrest systems shall be independent of any

anchorage being used to support or suspend platforms, and capable of supporting at least 5,000 lbs. per user attached, or be designed,

installed, and used as part of a complete personal fall arrest systems which maintains a safety factor of at least two, and is under the

supervision of a qualified person. In Canada, refer to local regulations where applicable.

•

Locking Speed:

Situations which do not allow for an unobstructed fall path should be avoided. Working in confined or cramped

spaces may not allow the body to reach sufficient speed to cause the SRD to lock if a fall occurs. Working on slowly shifting material,

such as sand or grain,may not allow enough speed buildup to cause the SRD to lock. A clear path is required to assure positive locking

of the SRD.

•

Free Fall:

Properly using an SRD in overhead applications will minimize free fall distance. To prevent an increased free fall distance, follow

the instructions below:

•

Never clamp, knot, or otherwise prevent the lifeline from retracting or staying taut.

•

Avoid any slack in the lifeline of the SRD.

•

Do not work above the level of your anchorage.

•

Do not lengthen SRDs by connecting a lanyard or similar component without consulting 3M.

For product-specific information relating to free fall and fall clearance values, please refer to Table 1 of this instruction.

•

Swing Falls:

Swing Falls occur when the anchorage point is not directly above the point where a fall occurs. The force of striking an

object in a swing fall may cause serious injury (see Figure 3A). Minimize swing falls by working as directly below the anchorage point

as possible (Figure 3B). Working away from the anchorage point (Figure 3C) will increase the impact of a swing fall and increase the

required Fall Clearance (FC).

•

Fall Clearance:

Figure 3B illustrates Fall Clearance Calculation. Fall Clearance (FC) is the sum of Free Fall (FF), Deceleration Distance (DD)

and a Safety Factor (SF): FC = FF +DD + SF. D-Ring Slide and Harness Stretch are included in the Safety Factor. Fall Clearance values have

been calculated and are charted in Figure 4. A Safety Factor of .45 m (1.5 ft) was used for all values in Figure 4.
For falls from a standing position where the SRD is anchored directly overhead (Figure 3B), SRD Fall Arrest Systems should have the

minimum Fall Clearances specified in Table 1. Falls from a kneeling or crouching position will require an additional 1 m (3 ft) of Fall

Clearance. In a swing fall situation (Figure 3C), the total vertical fall distance will be greater than if the user had fallen directly below

the anchorage point and may require additional Fall Clearance. Figure 4 and the accompanying table define the Maximum Work Radius

(C) for various SRD Anchorage Heights (A) and Fall Clearances (B). The Recommended Work Zone is limited to the area located within

the Maximum Work Radius.

•

Hazards:

Use of this equipment in areas where surrounding hazards exist may require additional precautions to reduce the possibility of injury

to the user or damage to the equipment. Hazards may include, but are not limited to: high heat, caustic chemicals, corrosive environments, high

voltage power lines, explosive or toxic gases, moving machinery, or overhead materials that may fall and contact the user or fall arrest system. Avoid

working where your lifeline may cross or tangle with that of another worker. Avoid working where an object may fall and strike the lifeline; resulting

in loss of balance or damage to the lifeline. Do not allow the lifeline to pass under arms or between legs.

•

Sharp Edges:

Avoid working where the lifeline will be in contact with or abrade against unprotected sharp edges. Where contact with a

sharp edge is unavoidable, cover the edge with a protective material.

2.0 USE

2.1

RESCUE PLAN:

When using this equipment, the employer must have a rescue plan and the means at hand to implement it and

communicate that plan to users

, authorized persons

, and rescuers

2.2

INSPECTION FREQUENCY:

Per the

Inspection Schedule (Table 2)

, SRDs must be inspected by the user before each use. SRDs must

be inspected by a Competent Person

at intervals determined from the Inspection Schedule and immediately after FAST-Line Lifeline

replacement

. See the

Inspection and Maintenance Log (Table 3)

for inspections procedures.

Repairable SRDs must be submitted to a 3M Authorized Service Agent for Revalidation Inspection at intervals determined from the

Inspection Schedule (Table 2)

. The Authorized Service Agent will record their findings and label the product with the next annual service date.

Results of the Authorized Service Agent or Competent Person inspection should be recorded in the

“Inspection and Maintenance Log”

at the

back of these instructions or recorded with the Radio Frequency Identification (RFID) system.

1 Capacity:

130 lb. -310 lb. (59 kg- 140 kg) is the capacity range required by standard CSA Z259.2.2-17. Some 3M SRDs are tested to a 420 lb. (191 kg) capacity. See

Figure 1 for the SRD models covered by this instruction and their capacities.

2 User:

A person connected to the device or system by means of a Fall Protection System.

3 Authorized Person:

A person assigned by the employer to perform work at a location where the person could be exposed to a fall hazard.

4 Rescuer:

The person or persons other than the rescue subject acting to perform an assisted rescue using a rescue system.

5 Competent Person:

An individual designated by the employer to be responsible for the immediate supervision, implementation, and monitoring of the employer’s

managed fall protection program who, through training and knowledge, is capable of identifying, evaluating, and addressing existing and potential fall hazards, and

who has the employer’s authority to take prompt corrective action with regard to such hazards

6 FAST-Line:

FAST-Line Replaceable Lifelines are available only on select Sealed-Blok SRD models.