3M 3101220 User manual

© Copyright 2015, Capital Safety
CSA Z259.2.2, Type 1 OSHA
This manual is intended to meet the Manufacturer’s
Instructions as required by CSA Z259.2.2 and should
be used as part of an employee training program as
required by OSHA.
INSTRUCTION MANUAL
Figure 1 – Nano-Lok™ Self Retracting Lifeline Models
A - Steel Snap Hook B - Steel Rebar Hook C - Aluminum Rebar Hook G - 3100089 Cab Mount H - 3100088 Single Leg Interface I - 3100087 Twin Leg Interface K - 2000112 Steel Carabiner L - 2000025 Aluminum Carabiner M - Web Leg with Aluminum Snap Hook (F) A - Steel Snap Hook B - Steel Rebar Hook C - Aluminum Rebar Hook D - Steel Swiveling Snap Hook E - Aluminum Carabiner (captive eye) F - Aluminum Snap Hook N - Steel Rebar Lock Hook O - Aluminum Rebar Lock Hook
Swivel End Lanyard End Model Swivel End Lanyard End
K - 2000112
L - 2000025
Anchorage Connection Models
A
B
C
D
E
F
A
B
C
3101220 1 1
3101221 1 1
3101222 1 1
3101223 1 1
3101224 1 1
3101244 1 1
3101245 1 1
3101246 1 1
3101247 1 1
3101248 1 1
3101249 1 1
H - 3100088
Single SRL Harness Mount
Models
A
B
C
D
E
F
3101230 1 1
3101231 1 1
3101232 1 1
3101233 1 1
3101234 1 1
3101258 1 1
I - 3100087
NOTE: Older ExoFit
harnesses may require
different Twin SRL
models. See Appendix A.
Twin SRL Harness Mount Models A
B
C
D
E
F
3101281 1 2
3101282 1 2
3101283 1 2
3101284 1 2
3101285 1 2
3101286 1 2
G - 3100089
Cab Mount (Order Picker) Models
A
D
3101242 1 1
3101243 1 1
Hot Work SRLs: Fire resistant models for welding, foundry work, etc. where SRL may be exposed to sparks or ames.
The Ultimate in Fall Protection
FORM NO: 5903615 REV: B
SELF RETRACTING LIFELINES
Model Numbers: (See Figure 1)

Figure 1 – Nano-Lok™ Self Retracting Lifeline Models
A - Steel Snap Hook B - Steel Rebar Hook C - Aluminum Rebar Hook G - 3100089 Cab Mount H - 3100088 Single Leg Interface I - 3100087 Twin Leg Interface K - 2000112 Steel Carabiner L - 2000025 Aluminum Carabiner M - Web Leg with Aluminum Snap Hook (F) A - Steel Snap Hook B - Steel Rebar Hook C - Aluminum Rebar Hook D - Steel Swiveling Snap Hook E - Aluminum Carabiner (captive eye) F - Aluminum Snap Hook N - Steel Rebar Lock Hook O - Aluminum Rebar Lock Hook
Swivel End Lanyard End Model Swivel End Lanyard End
H - 3100088
Hot Work Single SRL
Harness Mount Models
A
B
C
D
E
N
O
K - 2000112
Hot Work Single SRL
Anchorage Connection Model
3101506 1 1
3101507 1 1
3101508 1 1
3101509 1 1
3101510 1 1
3101511 1 1
3101512 1 1
3101513 1 1
I - 3100087
Hot Work Twin SRL
Harness Mount Models
A
B
C
D
E
N
O
3101514 1 2
3101515 1 2
3101516 1 2
3101517 1 2
3101518 1 2
3101519 1 2
3101520 1 2
Hot Work SRLs: Fire resistant models for welding, foundry work, etc. where SRL may be exposed to sparks or ames.
2

3
WARNING: This product is part of a personal fall arrest, work positioning, or rescue system. The user must
follow the manufacturer’s instructions for each component of the system. These instructions must be provided
to the user of this equipment. The user must read and understand these instructions before using this
equipment. Manufacturer’s instructions must be followed for proper use and maintenance of this equipment.
Alterations or misuse of this product or failure to follow instructions may result in serious injury or death.
IMPORTANT: If you have questions on the use, care, or suitability of this equipment for your application,
contact Capital Safety.
IMPORTANT: Before using this equipment, record the product identication information from the ID label in
the inspection and maintenance log of this manual.
DESCRIPTIONS:
Figure 2 illustrates key components of the base Nano-Lok™ Self Retracting Lifeline (SRL). The Nano-Lok SRLs
are 6 ft. (1.8 m) Lanyards, equipped with an in-line Load Indicator, which retract into a Thermoplastic Housing.
They are available in multiple model congurations that allow attachment to an anchorage point, single or dual
mounting on a Full Body Harness, or cab mounting on an Order Picker or similar equipment (see Figure 1). The
Nano-Lok SRL automatically locks at the onset of a fall to arrest the fall, but pays out and retracts lifeline during
normal movement by the attached user.
Figure 2 – Nano-Lok Self Retracting Lifeline (SRL) Components
C
A
D
E
F
G
H
B
A
D
E
F
G
H
A - Swivel B -Swivel Eye C- Integral Connector D- Housing E- Web Lifeline F- Load Indicator G- iSafe™ RFID Tag
H- Snap Hook

4
1.0 APPLICATIONS
1.1 PURPOSE: Capital Safety Self Retracting Lifelines (SRLs) are designed to be a component in a personal
fall arrest system (PFAS). Figure 1 illustrates SRLs 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, conned space
work, etc.).
1.2 STANDARDS: Your SRL conforms to the national standard(s) identied on the front cover of these
instructions. Refer to local, state, and federal (OSHA) requirements governing occupational safety for
additional information regarding Personal Fall Arrest Systems.
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.
2.0 LIMITATIONS & REQUIREMENTS
Always consider the following limitations and requirements when installing or using this equipment:
2.1 CAPACITY: SRLs are designed for use by one person with a combined weight (person, clothing, tools, etc.)
not exceeding 420 lbs (190 kg).
At no time shall more than one person connect to a single SRL for fall arrest applications.
2.2 MAXIMUM ARREST FORCE AND MAXIMUM ARREST DISTANCE: SRLs documented in this instruction meet
the following Arrest Force and Arrest Distance maximums:
Weight of Worker Up to 310 lbs (141 kg) Greater than 310 lbs (141 kg) Up to 420 lbs (191 kg)
Average Arresting Force 900 lbs (4.0 kN) 900 lbs (4.0 kN)
Maximum Arresting Force 1,350 lbs (6.0 kN) 1,350 lbs (6.0 kN)
Maximum Arrest Distance 30 in (0.76 m) 36 in (0.9 m)
2.3 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 lbs. (22.2 kN) for non-certied anchorages, or
2. Two times the maximum arresting force for certied 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.
2.4 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.
2.5 INSPECTION FREQUENCY: The SRL shall be inspected by the user before each use and, additionally, by
a competent person
1
other than the user at intervals of no more than one year
2
. Inspection procedures are
described in the “Inspection Checklist” (Table 1). Results of the Competent Person inspection should be
recorded in the “Inspection and Maintenance Log” on the back pages of these instructions or recorded with the
i-Safe™ system (see Section 5).
2.6 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 SRL 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 SRL to lock. A clear path is required to assure positive locking of the SRL.
2.7 NORMAL OPERATIONS: Normal operation will allow the full length of the lifeline to extend and retract
with no hesitation when extending and no slack when retracting as the worker moves at normal speeds. If a
fall occurs, a speed sensing brake system will activate, stopping the fall and absorbing much of the energy
created. For falls which occur near the end of the lifeline travel, a reserve lifeline system or Load Indicator
has been incorporated to assure a reduced impact fall arrest. If the SRL has been subjected to fall forces, it
must be taken out of service and inspected (see Section 5). Sudden or quick movements should be avoided
during normal work operation, as this may cause the SRL to lock up.
2.8 FREE FALL: When anchored overhead, SRLs will limit the free fall distance to 2 ft. (61 cm) or less. To avoid
increased fall distances, anchor the SRL directly above the work level. 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
1 Competent Person: One who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary,
hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.
2 Inspection Frequency: Extreme working conditions (harsh environments, prolonged use, etc.)may require increasing the frequency of competent person
inspections.

5
legs. Never clamp, knot, or prevent the lifeline from retracting or being taut. Avoid slack line. Do not
lengthen SRL by connecting a lanyard or similar component without consulting Capital Safety.
2.9 FALL CLEARANCE: Figure 3A illustrates Fall Clearance requirements. Ensure adequate clearance exists in the fall
path to prevent striking an object during a fall. If the worker will be working at a position that is not directly below
the SRL anchorage point, the clearance required and vertical fall distance will be greater.
2.10 SWING FALLS: Swing falls occur when the anchorage point is not directly above the point where a fall
occurs (see Figure 3B). The force of striking an object in a swing fall may cause serious injury. In a swing
fall, the total vertical fall distance will be greater than if the user had fallen directly below the anchorage
point, thus increasing fall clearance required to safely arrest the user. Use Figure 3A to determine the fall
clearance for your application. Minimize swing falls by working as directly below the anchorage point as
possible. Never permit a swing fall if injury could occur.
2.11 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, sharp edges, or overhead materials that may fall and contact the user or fall arrest system.
2.12 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.
2.13 BODY SUPPORT: A Full Body Harness must be used with the Self Retracting Lifeline. The harness
connection point must be above the user’s center of gravity. A body belt is not authorized for use with the
Self Retracting Lifeline. If a fall occurs when using a body belt it may cause unintentional release and possible
suffocation because of improper body support.
2.14 COMPATIBILITY OF COMPONENTS: Unless otherwise noted, Capital Safety equipment is designed for use
with Capital Safety approved components and subsystems only. Substitutions or replacements made with non
approved components or subsystems may jeopardize compatibility of equipment and may affect safety and
reliability of the complete system.
IMPORTANT: Read and follow manufacturer’s instructions for associated components and subsystems in your
personal fall arrest system.
2.15 COMPATIBILITY OF CONNECTORS: Connectors are considered to be compatible with connecting
elements when they have been designed to work together in such a way that their sizes and shapes do not
cause their gate mechanisms to inadvertently open regardless of how they become oriented. Contact Capital
Safety if you have any questions about compatibility.
Connectors (hooks, carabiners, and D-rings) must be capable of supporting at least 5,000 lbs. (22.2 kN).
Connectors must be compatible with the anchorage or other system components. Do not use equipment
that is not compatible. Non-compatible connectors may unintentionally disengage (see Figure 4). Connectors
must be compatible in size, shape, and strength. Self-locking snap hooks and carabiners are required by
ANSI Z359 and OSHA.
2.16 MAKING CONNECTIONS: Snap hooks and carabiners used with this equipment must be self-locking.
Ensure all connections are compatible in size, shape and strength. Do not use equipment that is not
compatible. Ensure all connectors are fully closed and locked.
Capital Safety connectors (snap hooks and carabiners) are designed to be used only as specied in each
product’s user’s instructions. See Figure 5 for examples of inappropriate connections. Do not connect snap
hooks and carabiners:
A. To a D-ring to which another connector is attached.
B. In a manner that would result in a load on the gate.
NOTE: Large throat snap hooks should not be connected to standard size D-rings or similar objects which will
result in a load on the gate if the hook or D-ring twists or rotates, unless the snap hook complies with CSA Z259.12
and is equipped with a 3,600 lb (16 kN) gate. Check the marking on your snap hook to verify that it is appropriate
for your application.
C. In a false engagement, where features that protrude from the snap hook or carabiner catch on the
anchor, and without visual conrmation seems to be fully engaged to the anchor point.
D. To each other.
E. Directly to webbing or rope lanyard or tie-back (unless the manufacturer’s instructions for both the
lanyard and connector specically allows such a connection).
F. To any object which is shaped or dimensioned such that the snap hook or carabiner will not close and
lock, or that roll-out could occur.
G. In a manner that does not allow the connector to align properly while under load.

6
Figure 3 – Fall Clearance and Swing Falls
Figure 3A:
Clearance required in feet (meters) between Working Level and
Nearest Obstruction for User with Total Weight up to 310 lbs (141 kg)
Clearance between
Working Level and
Nearest Obstruction
Figure 3B:
Swing Falls
Clearance between
Working Level and
Nearest Obstruction
To determine the clearance required: Measure the distance from the user’s harness dorsal connection to the
anchorage for the Nano-Lok SRL. Both horizontal and vertical distances are required. Use Figure 3A above to determine
the required clearance. The dotted lines in the gure represent 1 foot (0.3 m) increments from the user’s harness dorsal
connection to the anchorage. For example, 6 ft (1.8 m) of clearance is required when the Nano-Lok unit is anchored 3 1/2
ft (1 m) above and 3 1/2 ft (1 m) to the side of the user’s harness dorsal connection, 12 ft (3.7 m) of clearance is required
when the Nano-Lok is anchored 1 1/2 ft (0.5 m) below and 4 1/2 ft (1.4 m) to side of the user’s dorsal connection.
NOTE: The clearances provided above assume the fall occurs from the standing position. If the worker is kneeling or
crouching an additional 3 ft (0.9 m) of clearance is needed.
USERS BETWEEN 310 AND 420 LBS (141-191 kg): Users with a combined weight (person, clothing, tools, etc.)
between 310 and 420 lbs (141-191 kg) need 1 ft (0.3 m) more clearance than what is shown in the Figure 3A. 310 lb to
420 lb (141-191 kg)users must never anchor the Nano-Lok more than 2 ft (0.6 m) below their harness dorsal connection.
Figure 4 – Unintentional Disengagement Figure 5 – Inappropriate Connections
If the connecting element to which a snap hook (shown) or carabiner attaches
is undersized or irregular in shape, a situation could occur where the connecting
element applies a force to the gate of the snap hook or carabiner. This force may
cause the gate (of either a self-locking or a non-locking snap hook) to open,
allowing the snap hook or carabiner to disengage from the connecting point.
Small ring or other
non-compatibly
shaped element
Force is applied to the
Snap Hook.
The Gate presses against
the Connecting Ring.
The Gate opens allowing
the Snap Hook to slip off.
A. B. C. D.
E. F. G.

7
3.0 INSTALLATION
3.1 PLANNING: Plan your fall protection system before starting your work. Account for all factors that may affect
your safety before, during, and after a fall. Consider all requirements and limitations dened in Section 2.
IMPORTANT: In most applications, the Nano-Lok SRL can be connected to the anchorage or the harness
Dorsal location. Either orientation is allowed; except as noted in Section 4.7.
3.2 ANCHORAGE: Figure 6 illustrates typical SRL anchorage connections. Select an anchorage location with minimal
free fall and swing fall hazards (see Section 2). Select a rigid anchorage point capable of sustaining the static
loads dened in Section 2.2. Where anchoring overhead is not feasible, Nano-Lok SRLs may be secured to an
anchorage point below the level of the user’s Dorsal D-Ring. For users up to 310 lbs, (141 kg) the anchorage point
must not be more than 3 ft (1 m) below the Dorsal D-Ring. For users exceeding 310 lbs. (141 kg), up to 420 lbs
(191 kg), the anchorage point must not be more than 2 ft. (0.6 m) below the Dorsal D-Ring.
3.3 CAB MOUNTING: Cab Mount Nano-Lok SRL models are designed to be mounted overhead in the cab of an
Order Picker or similar equipment (see Figure 1). They must be used with a Full Body Harness as part of a
complete fall arrest system. Figure 7 illustrates installation of the Cab Mount SRL. Select anchorage capable
of sustaining the loads dened in Section 2.2 and attach the Nano-Lok SRL as follows:
1. Detach the Attachment Handle (A) from the SRL by removing the Lock Nut (D) and Bolt (C).
2. Position the Attachment Handle (A) over the anchorage or through the anchorage point.
3. With the Spacers (B) inserted securely in each side of the SRL’s Swivel Eye, position the SRL between
the forks of the Attachment Handle (A) so the holes in the Handle Spacers (B) align with the holes in the
Attachment Handle.
4. Insert the Bolt (C) through the Attachment Handle (A), Spacers (B), and SRL Swivel Eye.
5. Thread the Lock Nut (D) onto the Bot (C) and tighten securely. Do not overtighten.
IMPORTANT: It is recommended that this equipment be installed under the supervision of a qualied
person, as dened by OSHA 1910.66, Appendix C.
Figure 6 – Anchorage Connections Figure 7 – Cab Mounting
A
B
A
B
C
A
B
A
D
B
C
A - Anchorage B - Connector C - Tie-Off Adapter D - Anchorage Point A - Attachment Handle B - Spacers C - Bolt D - Lock Nut

8
3.4 HARNESS MOUNTING: Some Nano-Lok SRL models include a Single Leg or Twin SRL Harness Interface for
mounting the SRL(s) on a Full Body Harness just below the Dorsal D-Ring (see Figure 8 and Figure 9):
• Single SRL Harness Interface: Where worker mobility is critical, a Single SRL Harness Interface can be
used to mount the Nano-Lok SRL on the back of a Full Body Harness just below the Dorsal D-Ring (see Figure
8). The worker can then connect to varied anchorage points located throughout the site with the Lanyard End
of the SRL without repeatedly re-installing the SRL. To mount the Nano-Lok SRL on a Full Body Harness with
the Single SRL Harness Interface:
1. Loosen the Harness Webbing: Pull out on the Web Straps (A) where they pass through the
bottom of the Dorsal D-Ring (B) until there is sufcient space to slide the Single Leg Interface
between the Web Straps and Back Pad.
2. Open the Harness Interface: Push down on the Locking Buttons (C) simultaneously and slide the
Locking Pin (D) out.
3. Position the Harness Interface around the Web Straps: With the Locking Buttons (C) facing
out and Gate facing up, insert the Nose End of the Harness Interface (E) behind the Web Straps
(A). Rotate the Harness Interface behind the Web Straps until the Harness Interface surrounds the
the Web Straps. Pull the Web Straps back through the Dorsal D-Ring and Back Pad to secure the
Harness Interface.
4. Attach the Nano-Lok SRL to the Harness Interface: Slide the Swivel Eye on the SRL (F) over
the Harness Interface’s Locking Pin (D) and then push in the Locking Pin until it locks into place in
the opposite end of the Harness Interface.
WARNING: The Red Band on the knob end of the Harness Interface Locking Pin will be exposed
if the Harness Interface is unlocked. To avoid accidental release of the connection, always make
sure the Harness Interface is locked before using the Harness and attached Nano-Lok SRL. Failure
to do so could result in injury or death.
NOTE: It is also acceptable to connect the Nano-Lok SRL to the Harness Dorsal D-Ring with a
Carabiner or Snaphook.
Figure 8 – Single SRL Harness Interface
Step 1
B
A
B
A
Delta III
ExoFit
NEX
Step 2
C
C
D
Step 3
EA
C
Step 4
F
D D
A - Web Straps B - Dorsal D-Ring C - Locking Buttons D - Locking Pin E - Harness Interface F - SRL Swivel Eye

9
• Twin SRL Harness Interface: In climbing applications where 100% tie-off is required, the Twin SRL
Harness Interface can be used to mount two Nano-Lok SRLs side-by-side on the back of a Full Body
Harness just below the Dorsal D-Ring (see Figure 9). To mount two Nano-Lok SRLs on a Full Body
Harness with the Twin SRL Harness Interface:
1. Loosen the Harness Webbing: Pull out on the Web Straps (A) where they pass through the
bottom of the Dorsal D-Ring (B) until there is sufcient space to slide the Twin Leg Interface
between the Web Straps and D-Ring Pad.
2. Open the Harness Interface: Push up on the Connector Insert (C) to unsnap the Clamps (D) from
the Connector and then swing the Connector Insert up to unlock the Gate. Push the Gate (E) inward
to open the Connector.
3. Thread the rst Nano-Lok SRL onto the Harness Interface: Insert the Nose of the Connector
(F) through the Swivel Eye (G) on the SRL and then rotate the SRL around to the Gate End of the
Connector (H). The Gate can be rotated toward the Nose to allow clearance for the Swivel Eye
between the Gate and Spine of the Connector.
4. Position the Harness Interface around the Web Straps: With the Gate facing up, insert the
Nose of the Connector (F) behind the Web Straps (A). Rotate the Connector behind the Web Straps
until the Connector surrounds the the Web Straps.
5. Add the second Nano-Lok SRL on the Harness Interface: Slide the SRL’s Swivel Eye (G) over
the Nose of the Connector (F) and position the SRL Swivel Eye in the Nose End of the Connector (I).
Swing the Gate (E) closed.
6. Close the Harness Interface: Rotate the Connector Insert (C) forward so the Clamps (D) secure
on the Connector. When properly closed, the Web Straps should pass through the Webbing Slot (J)
at the top of the Connector Insert and the SRL Swivel Eyes should be secured in the Recesses (K)
on either side of the Connector Insert. Once the Harness Interface is closed, pull the Web Straps (A)
back through the Dorsal D-Ring and D-Ring Pad to eliminate slack in the webbing and secure the
Connector between the Web Straps and D-Ring Pad.
NOTE: Older ExoFit harnesses may require a different Twin SRL Harness Interface. See Appendix A.
4.0 USE
WARNING: Do not alter or intentionally misuse this equipment. Consult Capital Safety when using this
equipment in combination with components or subsystems other than those described in this manual. Some
subsystem and component combinations may interfere with the operation of this equipment. Use caution when
using this equipment around moving machinery, electrical hazards, chemical hazards, sharp edges, or overhead
materials that may fall onto the lifeline. Do not loop the lifeline around small structural members . Failure to heed
this warning may result in equipment malfunction, serious injury, or death.
WARNING: Consult your doctor if there is reason to doubt your tness to safely absorb the shock from a fall
arrest. Age and tness seriously affect a worker’s ability to withstand falls. Pregnant women or minors must not
use DBI-SALA self retracting lifelines.
4.1 BEFORE EACH USE: Before each use of this fall protection equipment carefully inspect it to assure it is in
good working condition. Check for worn or damaged parts. Ensure all bolts are present and secure. Check
that the lifeline is retracting properly by pulling out the line and allowing it to slowly retract. If there is any
hesitation in retraction the unit should be removed from service and destroyed. Inspect the lifeline for cuts,
frays, burns, crushing and corrosion. Check locking action by pulling sharply on the line. See Section 5 for
inspection details. Do not use if inspection reveals an unsafe condition.
4.2 AFTER A FALL: Any equipment which has been subjected to the forces of arresting a fall or exhibits
damage consistent with the effect of fall arrest forces as described in Section 5, must be removed from
service immediately and destroyed.
4.3 BODY SUPPORT: A full body harness must be worn when using Nano-Lok SRLs. For general fall protection
use, connect to the back (dorsal) D-ring. For situations such as ladder climbing, it may be useful to connect
to the front of the harness above the worker’s center of gravity. This is acceptable provided potential free fall
is less than 2 ft. (61 cm) and footing can be easily regained.
IMPORTANT: Do not use a body belt for free fall applications. See OSHA 1926.502 for guidelines.
4.4 MAKING CONNECTIONS: Figure 10 illustrates harness and anchorage connections for Nano-Lok SRL Fall
Arrest Systems. When using a hook to make a connection, ensure roll-out cannot occur (see Figure 4). Do
not use hooks or connectors that will not completely close over the attachment object. Do not use non-
locking snap hooks. The anchorage must meet the anchorage strength requirements stated in section 2.2.
Follow the manufacturer’s instructions supplied with each system component.

10
Figure 9 – Twin SRL Harness Interface
Step 1
A
B
B
A
Delta III
ExoFit
NEX
Step 2
D
D
C
E
Step 3
G
HF
Step 4
F
A
Step 5
F
E
I
G
E
Step 6
D
D
C
A
D
D
K
K
C
J
A - Web Straps B - Dorsal D-Ring C - Connector Insert D - Clamps, Connector Insert E - Gate, Connector F - Nose, Connector
G - Swivel Eye, SRL H - Gate End, Connector I - Nose End, Connector J - Webbing Slot, Connector Insert
K - Swivel Eye Recesses, Connector Insert

11
Figure 10 – Nano-Lok SRL System Connections
E
D
A
D
G
B
F
C
F
A - Dorsal D-Ring B - Single SRL Harness Interface C - Twin SRL Harness Interface D - Snap Hook E - Carabiner
F - Rebar Hook G - Anchorage Point
4.5 OPERATION: Prior to use, inspect the SRL as described in section 5.0. Figure 10 shows system connections
for typical Nano-Lok SRL applications. Connect the Nano-Lok SRL to a suitable anchorage or mount the SRL
on the back of a Full Body Harness per the instruction in Section 3. On anchorage connected SRLs, connect
the Hook (D) or Carabiner on the Load Indicator to the Dorsal D-Ring (A) on the Full Body Harness. On
harness mounted SRLs, connect the Hook (D) or Carabiner to a suitable anchorage. Ensure connections
are compatible in size, shape, and strength. Ensure hooks are fully closed and locked. Once attached, the
worker is free to move about within the recommended working area at normal speeds. If a fall occurs the
SRL will lock and arrest the fall. Upon rescue, remove the SRL from use. When working with an SRL, always
allow the lifeline to recoil back into the device under control.
WARNING: Do not tie or knot the lifeline. Avoid lifeline contact with sharp or abrasive surfaces. Inspect
the lifeline frequently for cuts, fraying, burns, or signs of chemical damage. Dirt, contaminants, and water
can lower dielectric properties of the lifeline. Use caution near power lines.
4.6 TWIN LEG INTERFACE 100% TIE-OFF: When two Nano-Lok SRLs are mounted side-by-side on the back
of a Full Body Harness, the SRL Fall Arrest System can be used for continuous fall protection (100 % tie-off)
while ascending, descending, or moving laterally (see Figure 11). With the Lanyard Leg of one SRL attached
to an anchorage point, the worker can move to a new location, attach the unused Lanyard Leg of the other
SRL to another anchorage point, and then disconnect from the original anchorage point. The sequence is
repeated until the worker reaches the desired location. Considerations for twin leg 100% tie-off applications
include the following:
• Connection of each Lanyard Leg to a separate anchorage point is acceptable (Figure 11).
• Never connect more than one person at a time to the Twin-Leg system (Figure 12).
• Do not allow the Lanyards to become tangled or twisted together as this may prevent them from
retracting.
• Do not allow any lanyard to pass under arms or between legs during use.

12
Figure 11 – 100% Tie-Off Figure 12 – Incorrect Attachment
4.7 AERIAL WORK PLATFORMS: Use of the Nano-Lok SRL on aerial work platforms is permissible, provided
the following criteria are met:
1. Nano-Lok SRLs generally will not restrain workers from falling out of aerial work platforms or elevated
working surfaces. To restrain users from falling out of aerial work platforms, Positioning Lanyards of
sufciently short lengths should be used.
2. Aerial work platforms must have guardrails or gates at all accessible edges along their perimeter unless
anchorages for the Nano-Lok SRLs are located overhead. The edges on the top rails of all guardrails and
gates over which the user might fall must have a minimum radius of 1/8 in. (0.3 cm).
3. Anchorages of appropriate strength and compatibility must always be used for securing Nano-Lok SRLs
(see Section 2).
4. Swing fall hazards may exist, especially when working near corners or out away from anchorage points.
Added fall clearance is needed where the potential for swing fall exists (see Figure 3).
5. All sharp edges which the Nano-Lok SRL’s lifeline may contact during a fall must be eliminated or
covered over. All edges the SRL lifeline may contact in a fall must be smooth with an edge radius of 1/8
in. (0.3 cm) or greater. Potential pinch points between adjacent surfaces where the lifeline may catch
during a fall must be eliminated.
4.8 HORIZONTAL SYSTEMS: In applications where the Nano-Lok SRL is used in conjunction with a horizontal
system (i.e. Horizontal Lifeline, Horizontal I-Beams Trolley), the SRL and horizontal system components
must be compatible. Horizontal systems must be designed and installed under the supervision of a qualied
engineer. Consult the horizontal system equipment manufacturer’s instructions for details.
5.0 INSPECTION
5.1 i-Safe™ RFID TAG: The Nano-Lok SRL includes an i-Safe™
Radio Frequency Identication (RFID) tag. The RFID tag can be
used in conjunction with the i-Safe handheld reading device to
simplify inspection and inventory control and provide records
for your fall protection equipment. If you are a rst-time user,
contact a Capital Safety Customer Service representative (see
back cover); or if you have already registered, go to isafe.
capitalsafety.com. Follow the instructions provided with your
i-Safe handheld reader or software to transfer your data to your
database.
Figure 13 – i-Safe RFID Tag
5.2 INSPECTION FREQUENCY: The Nano-Lok SRL must be inspected at the intervals dened in “Section 2.5 -
Inspection Frequency”. Inspection procedures are described in the “Inspection Checklist” (Table 1).
5.3 UNSAFE OR DEFECTIVE CONDITIONS: If inspection reveals an unsafe or defective condition, remove the
Nano-Lok SRL from service immediately and discard (see “Section 5.5 - Disposal”).

13
5.4 PRODUCT LIFE: The functional life of Nano-Lok SRLs is determined by work conditions and maintenance.
As long as the SRL passes inspection criteria, it may remain in service.
5.5 DISPOSAL: Dispose of the Nano-Lok SRL if it has been subjected to fall force, or an inspection reveals an
unsafe or defective condition. Before disposing of the SRL, cut the Load Indicator off of the Web Lanyard or
otherwise disable the SRL to eliminate the possibility of inadvertent reuse.
6.0 MAINTENANCE, SERVICING, AND STORAGE
6.1 CLEANING: Cleaning procedures for the Nano-Lok SRL are as follows:
• Periodically clean the exterior of the SRL using water and a mild soap solution. Position the SRL so
excess water can drain out. Clean labels as required.
• Clean the Web Lifeline with water and mild soap solution. Rinse and thoroughly air dry. Do not force dry
with heat. The lifeline should be dry before allowing it to retract into the housing. An excessive buildup
of dirt, paint, etc. may prevent the lifeline from fully retracting back into the housing causing a potential
free fall hazard.
IMPORTANT: If the lifeline contacts acids or other caustic chemicals, remove the SRL from service
and wash with water and a mild soap solution. Inspect the SRL per Table 1 before returning to
service.
6.2 SERVICE: Nano-Lok SRLs are not repairable. If the SRL has been subjected to fall force or inspection
reveals an unsafe or defective condition, remove the SRL from service and discard (see “Section 5.5 -
Disposal”).
6.3 STORAGE: Store Nano-Lok SRLs in a cool, dry, clean environment out of direct sunlight. Avoid areas where
chemical vapors may exist. Thoroughly inspect the SRL after any period of extended storage.
7.0 SPECIFICATIONS
7.1 PERFORMANCE: Your Nano-Lok SRL has been tested and certied to the performance requirements
of the standard(s) identied on the cover of this instruction manual. See “Section 2.0 - Limitations &
Requirements” for performance specications.
7.2 MATERIALS: Material specications for the Nano-Lok SRL are as follows:
Housing: Nylon, UV Resistant Motor Spring: Stainless Steel
Drum: Nylon, Type 6/6 Swivel: Zinc Plated Steel
Fasteners: Zinc Plated Steel Screws; Stainless
Steel Rivets
Lifeline: Dynema Polyester Web,
Hot Work Kevlar Nomex Web
Locking Pawls: Stainless Steel Load Indicator Cover: Denier Textured Nylon
Stitching: Polyester or Nylon Thread
Web: Polyester
Main Shaft: Stainless Steel Hot Work Cover: Kevlar Nomex
Stitching: Nomex
Web: Kevlar Nomex
End
Connectors:
See Figure 18 for End Connector options and their respective material specications.
7.3 DIMENSIONS: Figure 18 lists Nano-Lok SRL dimensions. Average working range for the Nano-Lok SRL is
6 ft. (1.8 m), but will vary slightly with length differences in the various End Connector options. Retracted
and Extended length values in Figure 18 are approximations based on the total length of the fully retracted/
extended SRL and the applicable End Connectors.
7.4 LABELING: Figure 19 illustrates Nano-Lok SRL labeling. All labels on the SRL must be present and fully
legible.

14
Table 1 – Inspection Checklist
Component: Inspection: Pass Fail
SRL
(Figure 14)
Inspect for loose fasteners and bent or damaged parts.
Inspect the Housing (A) for distortion, cracks, or other damage.
Inspect the Swivel (B) and Swivel Eye (C) or Integral Connector (D) for
distortion, cracks, or other damage. The Swivel should be attached securely to
the SRL, but should pivot freely. The Swivel Eye or Integral Connector should
rotate freely in the Swivel.
The Web Lifeline (E) should pull out and retract fully without hesitation or
creating a slack line condition.
Ensure the SRL locks up when the Lifeline is jerked sharply. Lockup should be
positive with no slipping.
All labels must be present and fully legible (see Figure 19).
Inspect the entire SRL for signs of corrosion.
Web Lifeline
(Figure 15)
Inspect the web lifeline for concentrated wear, frayed strands, broken yarn,
burns, cuts, and abrasions. The lifeline must be free of knots throughout its
length. Inspect for excessive soiling, paint build-up, and rust staining. Inspect
for chemical or heat damage indicated by brown, discolored, or brittle areas.
Inspect for ultraviolet damage indicated by discoloration and the presence of
splinters and slivers on the lifeline surface.
Load Indicator
(Figure 16)
Inspect the Load Indicator to determine if it has been activated. There should
be no evidence of elongation and the cover should be secure and free of tears
or other damage.
End Connectors
(Figure 17)
Figure 1 identies the End Connectors that should be included on your
Nano-Lok SRL model. Inspect all Snap Hooks, Carabiners, Rebar Hooks,
Interfaces, etc. for signs of damage, corrosion, and proper working condition.
Where present: Swivels (A) should rotate freely, Gates (B) should open, close,
lock, and unlock properly, and Locking Buttons (C) and Locking Pins (D) should
function correctly.
Figure 14 – SRL Inspection
C
D
B B
A A
E E
Figure 15 – Web Lifeline
Cut
Frayed
Heavily
Soiled
Welding
Burns
Figure 16 – Load Indicator
Torn or
Broken
Cover
Deployed and
Torn/Frayed
Webbing
Figure 17 – End Connectors
B
B
BBB
A
B
CDC
B

15
Figure 18 – Dimensions & End Connector Specications
1
ABCK
2000112
L
2000025
G
3100089
H
3100088
I
3100087
J
3100107
111
22
2
34
3.05”
(77.5 mm)
3.46”
(87.8 mm)
2.03”
(51.7 mm)
12.5”
(318 mm) 5’-6”
(1.68 m)
2
ABCD E FN & O
End Connectors Length (Retracted) Length (Extended)
Model
1
Swivel
2
Lanyard
3
in.
3
mm
4
ft.
4
m
3101220 L F22.75 577.85 6.35 1.94
3101221 K D 22.02 559.31 6.29 1.92
3101222 K B 24.21 614.93 6.48 1.97
3101223 A A 22.3 566.42 6.32 1.93
3101224 AB 24.78 629.41 6.52 1.99
3101230 H E 19.84 503.89 6.11 1.86
3101231 H F20.59 522.94 6.17 1.88
3101232 H C21.84 554.69 6.28 1.91
3101233 H A18.74 475.95 6.02 1.83
3101234 H B 21.22 538.94 6.23 1.9
3101242 GD 20.94 531.88 6.2 1.89
3101243 G A 20.65 524.51 6.18 1.88
3101244 B D 21.19 538.23 6.22 1.9
3101245 K A21.73 551.94 6.27 1.91
3101246 L E 22 558.8 6.29 1.92
3101247 L C24 609.6 6.46 1.97
3101248 CE 26.5 673.1 6.67 2.03
3101249 C F 25.69 652.53 6.6 2.01
3101258 H D 19.03 483.31 6.04 1.84
3101281 IE 20.45 519.43 6.16 1.88
3101282 I F 21.2 538.48 6.23 1.9
3101283 I C 22.45 570.23 6.33 1.93
3101284 ID 19.64 498.86 6.1 1.86
3101285 I A 19.35 491.49 6.07 1.85
3101286 IB 21.83 554.48 6.28 1.91
3101289 J E 20.45 519.43 6.16 1.88
3101290 J F21.2 538.48 6.23 1.9
3101291 J C22.45 570.23 6.33 1.93
3101292 J D 19.64 498.86 6.1 1.86
3101293 J A19.35 491.49 6.07 1.85
3101294 J B 21.83 554.48 6.28 1.91
3101506 H A18.74 475.95 6.02 1.83
3101507 H D 19.03 483.31 6.04 1.84
3101508 H B 21.22 538.94 6.23 1.90
3101509 H N 22.84 580.14 6.36 1.94
3101510 H E 19.84 503.89 6.11 1.86
3101511 H C21.84 554.69 6.28 1.91
3101512 H O22.84 580.14 6.36 1.94
3101513 K A21.73 551.94 6.27 1.91
3101514 I A 19.35 491.49 6.07 1.85
3101515 ID 19.64 498.86 6.10 1.86
3101516 IB 21.83 554.48 6.28 1.91
3101517 IN 23.45 595.63 6.41 1.95
3101518 IE 20.45 519.43 6.16 1.88
3101519 I C 22.45 570.23 6.33 1.93
3101520 I O 23.45 595.63 6.41 1.95
1 2
Connector: Type: Material: Gate Opening Gate Strength
ASnap Hook Steel 3/4 in.
(19 mm)
3,600 lb
(16 kN)
B Rebar Hook Steel 2-1/2 in.
(63.5 mm)
3,600 lb
(16 kN)
CRebar Hook Aluminum 2-1/4 in.
(57 mm)
3,600 lb
(16 kN)
D Swiveling Snap Hook Steel 3/4 in.
(19 mm)
3,600 lb
(16 kN)
ECarabiner Aluminum 3/4 in.
(19 mm)
3,600 lb
(16 kN)
FSnap Hook Aluminum 3/4 in.
(19 mm)
3,600 lb
(16 kN)
G Cab Mount Stainless Steel 1.63 in.
(41.4 mm)
H Single Leg Interface Steel 11/16 in.
(17 mm)
ITwin SRL Interface Steel w/Nylon Insert 3/4 in.
(19 mm)
3,600 lb
(16 kN)
J Twin SRL Interface
(ExoFit Fixed D-Ring)
Steel 3/4 in.
(19 mm)
3,600 lb
(16 kN)
KCarabiner Steel 1-3/16 in.
(30 mm)
3,600 lb
(16 kN)
LCarabiner Aluminum 3/4 in.
(19 mm)
3,600 lb
(16 kN)
N Rebar Lock Hook Steel 2-1/2 in.
(63.5 mm)
3,600 lb
(16 kN)
ORebar Lock Hook Aluminum 2-1/2 in.
(63.5 mm)
3,600 lb
(16 kN)

16
Figure 19 – Labeling

17
Figure 19 – Labeling

18
APPENDIX A - TWIN SRL FIXED D-RING HARNESS INTERFACE
Older ExoFit Full Body Harnesses with a Fixed D-Ring require a special Twin SRL Harness Interface to mount two
Nano-Lok SRLs on the back of the harness just below the Dorsal D-Ring. Specic Twin Leg Nano-Lok SRL models
are available for installation on ExoFit Fixed D-Ring harnesses (see Figure 20).
Figure 20 – Twin Leg Harness Mount Models for ExoFit Fixed D-Ring Harnesses
J - 3100107
Twin SRL Fixed
D-Ring Harness
Interface A - Steel Snap Hook B - Steel Rebar Hook C - Aluminum Rebar Hook D - Steel Swiveling Snap Hook E - Aluminum Carabineer (captive eye) F - Aluminum Snap hook
Swivel End Lanyard End Model Swivel End Lanyard End
J - 3100107
Twin Leg Harness Mount Models A
B
C
D
E
F
3101289 1 2
3101290 1 2
3101291 1 2
3101292 1 2
3101293 1 2
3101294 1 2
1.0 HARNESS MOUNTING: To mount two Nano-Lok SRLs on an ExoFit Full Body Harness with the Twin SRL
Fixed D-Ring Harness Interface (Figure 21):
1. Loosen the Harness Webbing: Pull out on the Web Straps (A) where they pass through the bottom
of the Dorsal D-Ring (B) until there is sufcient space to insert the Twin Leg Interface between the Web
Straps and Back Pad.
2. Open the Harness Interface: With the Twin Leg Interface orientated as illustrated in Figure 2 - Step
2, push the Locking Sleeve (C) to the right and then turn clockwise to unlock the Gate (D). Swing the
Gate (D) down to open.
3. Thread the rst Nano-Lok SRL onto the Harness Interface: Insert the Nose of the Connector (E)
through the Swivel Eye (F) on the SRL and then rotate the SRL around to the Gate End of the Connector
(G). The Gate can be closed to allow clearance for the Swivel Eye between the Gate and Spine of the
Connector.
4. Position the Harness Interface around the Web Straps: Insert the Nose of the Connector (E)
behind the Web Straps (A). Rotate the Connector behind the Web Straps until the Connector surrounds
the Web Straps.
5. Add the second Nano-Lok SRL on the Harness Interface: Slide the SRL’s Swivel Eye (F) over the
Nose of the Connector (E) and position the SRL Swivel Eye in the Nose End of the Connector.
6. Close the Harness Interface: Allow the Gate (D) to swing closed and the Locking Sleeve (C) to rotate
back to locked position. Once the Harness Interface is closed, pull the Web Straps (A) back through
the Dorsal D-Ring to eliminate slack in the webbing and secure the Harness Interface between the Web
Straps and Back Pad.

19
Figure 21 – Twin Leg Exot Harness Interface
Step 1
A
B
Step 2
C
D
D
Step 3
E
G
F
Step 4
A
E
Step 5
E
F
Step 6
DC
A
A- Web Straps B- Dorsal D-Ring C- Locking Sleeve, Connector D- Gate, Connector E- Nose, Connector F- Swivel Eye, SRL

INSPECTION AND MAINTENANCE LOG
SERIAL NUMBER:
MODEL NUMBER:
DATE PURCHASED: DATE OF FIRST USE:
INSPECTION DATE INSPECTION ITEMS
NOTED
CORRECTIVE ACTION MAINTENANCE
PERFORMED
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By:
Approved By: