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SRL CLEARANCE CHA RT
(Required minimum clearance to obstruction below worker)
2.7 m
2.4 m
2.1 m
1.8 m
1.5 m
9
8
7
6
9
(2.7 m)
8
(2.4 m)
7
(2.1 m)
6
Minimum Required
fall Clearance from
(1.8 m)
working sur face(Z)
5
(1.5 m)
4
(1.2 m)
3
(0.9 m)
2
(0.6 m)
1
(0.3 m)
0
1
(0.3 m)
2
(0.6 m)
3
(0.9 m)
4
(1.2 m)
5
(1.5 m)
Example 1: Worker is anchored 9 ft (2.7 m) overhead with a 2 ft (0.6 m)
offset from center = 8' Required minimum fall clearance.
Example 2: Worker is anchored at foot level with a 2 ft (0.6 m)
offset from center = 20 ft (6.1 m) required minimum fall clearance.
© 2023 DEWALT Industrial Tool Co.DEWALT® is a registered trademark of the DEWALT Industrial Tool Co., used under license.
WARNING: Considerations for Twin SRL 100% tie-off applications include the following:
• Never connect both SRL Lanyards to the same anchorage point
• Connecting more than one connector into a single anchorage (ring or eye) can jeopardize compatibility of
the connection due to interaction between connectors and is not recommended.
• Connection of each SRL lifeline to a separate anchorage point is acceptable while in transition.
• Never connect more than one person at a time to the Twin SRL system
• Do not allow the lifelines to become tangled or twisted together as this may prevent them from retracting.
• Do not allow any lifeline to pass under arms or between legs during use.
Refer to the user manual for more information.
15) PURPOSE AND APPLICATION
DEWALT SRL's are used to safely expand the working
area, where a harness with a 6 foot (1.8 M) lanyard
is inadequate. Hence the lifeline extends to the
required length, as per use. When the length is
shortened, the line retracts into its casing, ensuring
that there is no slack in the line. More importantly,
the SRL is designed to immediately arrest the fall of
the user, and also to limit the shock loading on to
the body of the user. The SRL is a part of the personal
fall arrest system, along with other components like
full body harness and anchorage connector.
8
(OFFSET FROM CENTER OF WORKER)
1.2 m
0.9 m
0.6 m
0.3 m
0.3 m 0.6 m 0.9 m 1.2 m 1.5 m 1.8 m 2.1 m 2.4 m 2.7 m
5
2
1
2
4
6
8
4
3
0
1
3
5
7
9
9
(2.7 m)
8
EX.1
6 ft
(2.4 m)
7
1.8 m
(2.1 m)
8 ft
6
2.4 m
(1.8 m)
5
(1.5 m)
4
(1.2 m)
CLASS 1
10 ft
12 ft
3
(0.9 m)
3.0 m
3.6 m
2
(0.6 m)
1
(0.3 m)
0
1
14 ft
4.2 m
CLASS 2
(0.3 m)
2
(0.6 m)
16 ft
4.8 m
3
(0.9 m)
4
6.1 m
20 ft
(1.2 m)
EX.2
5
23 ft
7.0 m
(1.5 m)
FOOT LEVEL
REQUIRED MINIMUM
FALL CLEARANCE AS
PER ABOVE DATA
OBSTRUCTION
16) LIMITATION OF USE OF DEWALT
SRL's
DEWALT SRL's are to be used as part of personal fall
arrest, restraint, rescue or work positioning systems.
Full Body harnesses, connectors, hooks, lanyards,
etc. are designed in such a way that they work in
sync with other elements of a personal fall arrest
system. While the SRL's are designed to arrest a fall
from height they also minimize the impact load on
the wearer. DEWALT recommends that only those
components or sub systems of the personal fall
arrest system which are manufactured by DEWALT
be used in combination. If other manufacturer's
equipment are used, then they should be ensured
for compatibility by a qualifi ed person only. If
substitutions or replacements are made with non-
approved components of sub systems then this may
severely aff ect the compatibility of the equipment,
making the complete system unsafe for use.
17) INSPECTION OF COMPONENTS OF
PERSONAL FALL ARREST SYSTEM
It is mandatory to have a detailed visual inspection
of all the harnesses, lanyards, connectors etc. prior
to each use. This ensures that the equipment is in
good condition and is operating correctly. If there
are any doubts regarding the safe state of product
or if the product has been used to arrest a fall, then
immediately withdraw the equipment and send
it back to the manufacturer or to the qualifi ed
authorized repair center. Never attempt to repair
or modify any Personal Protective Equipment (PPE).
18) FORMAL INSPECTION
It is mandatory that a competent person other
than the user must perform a formal inspection
of Personal Fall Arrest Systems (PFAS) and its
components at least once annually. This frequency
should be altered on the basis of conditions for
use or exposure. The inspection results should be
recorded in the inspection and maintenance log at
the end of this manual.
19) PRE-USE INSPECTION CHECK OF
THE SRL's
Impact Indicator: Look for the Impact Indicator on
the swivel hook of the Class 1 SRL's, at the attachment
end of the line. If the band shows green color, then
proceed with further steps for inspection. If however
the indicator shows a red color, then this means that
the device has arrested a fall. Remove the SRL from
any further use immediately, and return the device
to DEWALT, or to a DEWALT authorized repair center
only. External Energy absorber: If the SRL has an
external webbing energy absorber, then inspect the
energy absorber. it should not be opened, torn or
deployed. If inspection reveals an unsafe condition,
then the SRL should be immediately removed
from service and destroyed, or sent to DEWALT
authorized service center for repair. Follow below
steps for inspecting the SRL:
Step 1: Check the housing of the SRL for the
presence of distortion, cracks or any
damage.
Step 2: Inspect the swivel eye for any distortion. It
should turn freely.
Step 3: Check the screws on the housing; they
should not be loose or bent or damaged.
Step 4: The labels on the SRL should be intact,
legible.
Step 5: Check the functionality of the SRL. The
lifeline should fully extend and retract
smoothly, and should not cause any slack
in the line. The device should also lock up
properly when the lifeline is jerked sharply.
English
Step 6: Look for signs of corrosion on the entire
unit.
Step 7: Cable lifelines: Extend the full length of
the wire rope from the casing. Hold small
lengths of the wire rope between both
hands, and bend the rope in an inverted
U shape. Look out for the presence of
kinks, broken wires, bird caging, corrosion,
welding splatter, chemical damage, or
excessively abraded areas. Check the
thimble and the swaging on the end of
the line; it should not be torn or broken.
Crushed or bent cable, or kinks on the
cable may cause the SRL to malfunction,
and make it potentially unsafe for use.
Welding damage could result in fused
wires, and may alter the strength of the
wire.
Step 8: Web lifelines: Extend the entire length of
the lifeline from the casing of the SRL, and
inspect the full length of the webbing for
the presence of any cuts, broken webbing,
burns, cuts, abrasions, chemical or heat
damage, excessive soiling, etc.
Step 9: Inspect the connecting hooks and
carabiners for signs of damage, corrosion,
or excessive wear. Also check that they are
functioning properly
Record the results of the inspection in the Inspection
and Maintenance Log found in this manual. Also
tick off clearly on the Label sticker where specifi ed.
If the equipment is found to be unsuitable for use,
it should be immediately removed from service
and destroyed, or sent to DEWALT or to a DEWALT
authorized service center for repair. Do not attempt
to repair the equipment on your own.
20) CHOOSE THE RIGHT ANCHORAGE
POINT FOR THE SRL
Select the anchorage which should be strong
enough to take the load of application. The
anchorage should be able to sustain a static load of
a minimum 5000 lbs.(23kN) in the direction applied
by the personal fall arrest system. The anchor point
should ideally lie directly above the user. The anchor
point should also be located in such a place that the
swing fall is minimized.
Also, while using the SRL, make sure that there is
constant tension in the lifeline, and that there is
no slack. If the lifeline is not taught, then this could
increase the fall distance. Also, move normally
because sudden jerky movements may cause the
locking mechanism of the SRL to activate.
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