Guardian Fall Protection 11002 User manual

Product Name: Double Blow Blocker
Instruction Manual
Part #: 11002; 11003; 11004; 11012
Do not throw away these instructions!
Read and understand these instructions before using equipment!

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
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Table of Contents
Introduction 1
Applicable Safety Standards 2
Worker Classifications 2
Safety Information 2-4
Specific Product Applications 5
Limitations 6-7
Components and Specifications 7
Maintenance, Cleaning, and Storage 4
Inspection 5
Installation and Use 8
Inspection Log 9
Notes 9
Introduction
Thank you for purchasing a Guardian Fall Protection Double Blow Blocker Self-Retracting Lifeline (SRL).
This manual must be read and understood in its entirety, and used as part of an employee training
program as required by OSHA or any applicable state agency.
This and any other included instructions must be made available to the user of the equipment. The
user must understand how to safely and effectively use the SRL, and all fall safety equipment used in
combination with the SRL.
User Information
Date of first use:
Serial #:
Trainer:
User:
Labels 8

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
2
Applicable Safety Standards
When used according to instruction specifications, this product meets or exceeds all applicable
OSHA 1926 Subpart M, OSHA 1910, ANSI Z359.14-2012, and ANSI A10.32-2012 standards for fall
protection. Applicable standards and regulations depend on the type of work being done, and
also might include state regulations if applicable. Consult regulatory agencies for more information
on personal fall arrest systems and associated components.
Worker Classifications
!
CAUTION
Understand the following definitions of those who
work near or who may be exposed to fall hazards.
Qualified Person: A person with an accredited degree or certification, and with extensive experience
or sufficient professional standing, who is considered proficient in planning and reviewing the
conformity of fall protection and rescue systems.
Competent Person: A highly trained and experienced person who is ASSIGNED BY THE EMPLOYER to
be responsible for all elements of a fall safety program, including, but not limited to, its regulation,
management, and application. A person who is proficient in identifying existing and predictable
fall hazards, and who has the authority to stop work in order to eliminate hazards.
Authorized Person: A person who is assigned by their employer to work around or be subject to
potential or existing fall hazards.
It is the responsibility of a Qualified or Competent person to supervise the job site and ensure
all applicable safety regulations are complied with.
Safety Information
Do not alter equipment.
Do not misuse equipment.
Workplace conditions, including, but not limited to, flame, corrosive chemicals, electrical shock,
sharp objects, machinery, abrasive substances, weather conditions, and uneven surfaces, must be
assessed by a Competent Person before fall protection equipment is selected.
The failure to understand and comply with safety regulations may result in
serious injury or death. The regulations included herein are not all-inclusive,
are for reference only, and are not intended to replace a Competent
Person’s judgement or knowledge of federal or state standards.
!
WARNING

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
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The analysis of the workplace must anticipate where workers will be performing their duties, the
routes they will take to reach their work, and the potential and existing fall hazards they may be
exposed to.
Fall protection equipment must be chosen by a Competent Person. Selections must account for all
potential hazardous workplace conditions.
All fall protection equipment should be purchased new and in an unused condition.
Fall protection systems must be selected and installed under the supervision of a Competent
Person, and used in a compliant manner.
Fall protection systems must be designed in a manner compliant with all federal, state, and safety
regulations.
Unless explicitly stated otherwise, the maximum allowable free fall distance for lanyards must not
exceed 6’. No free fall allowed for non-LE SRLs. SRLs must arrest falls within 54”.
Forces applied to anchors must be calculated by a Competent Person.
Harnesses and connectors selected must be compliant with manufacturer’s instructions, and must
be of compatible size and configuration.
A pre-planned rescue procedure in the case of a fall is required. The rescue plan must be project-
specific. The rescue plan must allow for employees to rescue themselves, or provide an alternative
means for their prompt rescue.
Store rescue equipment in an easily accessible and clearly marked area.
Training of Authorized Persons to correctly erect, disassemble, inspect, maintain, store, and use
equipment must be provided by a Competent Person.
Training must include the ability to recognize fall hazards, minimize the likelihood of fall hazards,
and the correct use of personal fall arrest systems.
Maintenance of equipment must be done according to manufacturer’s instructions. Equipment
instructions must be retained for reference.
Prior to EACH use, all equipment in a fall protection system must be inspected for any potential or
existing deficiencies that may result in its failure or reduced functionality. IMMEDIATELY remove
equipment from service if any deficiencies are found.

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
4
Equipment must be inspected by a Competent Person at least every six months. SRLs must be
inspected by a Competent Person at least monthly. These inspections must be documented in
equipment instruction manual and on equipment inspection grid label.
Equipment must be inspected for defects, including, but not limited to, the absence of required labels
or markings, improper form/fit/function, evidence of cracks, sharp edges, deformation, corrosion,
excessive heating, alteration, excessive wear, fraying, knotting, abrasion, and absence of parts.
Equipment that fails inspection in any way must immediately be removed from use, or repaired by
an entity approved by the manufacturer.
No on-site repair of equipment unless explicitly permitted by Guardian Fall Protection.
Equipment subjected to forces of fall arrest must immediately be removed from use.
Snap hooks, carabiners, and other connectors must be selected and applied in a compatible fashion.
All risk of disengagement must be eliminated. All snap hooks and carabiners must be self-locking
and self-closing, and must never be connected to each other.
Age, fitness, and health conditions can seriously affect the worker should a fall occur. Consult a
doctor if there is any reason to doubt a user’s ability to withstand and safely absorb fall arrest forces
or perform set-up of equipment. Pregnant women and minors must not use this equipment.
Physical harm may still occur even if fall safety equipment functions correctly. Sustained post-fall
suspension may result in serious injury or death. Use trauma relief straps to reduce the effects of
suspension trauma.
Allowable individual worker weight limit (including all equipment), unless explicitly stated
otherwise, is 130-310 lbs.
Maintenance, Cleaning, and Storage
Repairs to SRLs can only be made by a Guardian Fall Protection representative or an entity authorized
by Guardian. Contact Guardian for all maintenance and repair needs at: 1-800-466-6385. If a SRL fails
inspection in any way, immediately remove it from service, and contact Guardian to inquire about its
return or repair.
Cleaning after use is important for maintaining the safety and longevity of SRLs. Remove all dirt,
corrosives, and contaminants from SRLs before and after each use. If a SRL cannot be cleaned with
plain water, use mild soap and water, then rinse and wipe dry. NEVER clean SRLs with corrosive
substances.
When not in use, store equipment where it will not be affected by heat, light, excessive moisture,
chemicals, or other degrading elements.

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
5
Product Specific Applications
Personal Fall Arrest: Double Blow Blockers may be used in Personal Fall Arrest applications to
support a MAXIMUM 1 Personal Fall Arrest System. Structure must withstand loads applied in
the directions permitted by the system of at least 5,000 pounds. No vertical free fall is allowed.
SRL must always be positioned at or below anchorage connection point. Applicable D-ring:
Dorsal.
Restraint: Double Blow Blockers may be used in Restraint applications. Restraint systems
prevent workers from reaching the leading edge of a fall hazard. Always account for fully
deployed length of SRL. Structure must withstand loads applied in the directions permitted by
the system of at least 1,000 pounds. No vertical free fall is permitted. Restraint systems may
only be used on surfaces with slopes up to 4/12 (vertical/horizontal). Applicable D-rings:
Dorsal, Chest, Side, Shoulder.
Inspection
!
WARNING
Use of equipment in unintended applications may result in serious
injury or death. Maximum 1 attachment per connection point.
For all applications: worker weight capacity range (including all clothing,
tools, and equipment) is 130-310 pounds, or up to 420 pounds if used
in combination with equipment explicitly certified for such use.
KEEP INSTRUCTIONS AVAILABLE FOR REFERENCE. Record date of first use.
Prior to EACH use, inspect SRLs for deficiencies, including, but not limited to, corrosion, deformation,
pits, burrs, rough surfaces, sharp edges, cracking, rust, paint buildup, excessive heating, alteration,
broken stitching, fraying, bird-caging, and missing or illegible labels. IMMEDIATELY remove SRL from
service if defects or damage are found.
Prior to EACH use, check retraction of each lifeline by pulling out a minimum 4’ and allowing them to
retract under light tension; lifelines must retract completely. Pull each lifeline sharply to test braking
function; brakes must engage. Check impact indicator for signs of deployment. Impact indicator is a
Guardian Logo tag sewn to lifeline webbing. If tag is fully visible, or if any tag stitching is broken,
DO NOT USE. IMMEDIATELY remove from service if SRL does not function properly, of if exposed to
forces of fall arrest.
Ensure that applicable work area is free of all damage, including, but not limited to, debris, rot, rust,
decay, cracking, and hazardous materials. Ensure that selected work area will support the application-
specific minimum loads set forth in this instruction manual. Work area MUST be stable.
EVERY month, a Competent Person other than the user must inspect SRLs. Competent Person
inspections MUST be recorded in inspection log in instruction manual and on equipment
inspection grid label. The Competent Person must sign their initials in the box corresponding
to the month and year the inspection took place.
During inspection, consider all applications and hazards SRLs have been subjected to.

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
6
FALL CLEARANCE CALCULATION
Lanyard length
(6’ total)
Safety factor
(3’ total)
Deceleration
distance (4’ total)
Height of harness
dorsal D-ring from
worker’s feet
(6’ total)
Required
distance
from
anchorage
(19’ total)
Limitations
Compatibility: When making connections with Double Blow Blockers, eliminate all possibility of
roll-out. Roll-out occurs when interference between a hook and the attachment point causes the hook
gate to unintentionally open and release. All connections must be selected and deemed compatible
with Double Blow Blocker by a Competent Person. All connector gates must be self-closing and
self-locking, and withstand minimum loads of 3,600 lbs. See the following for examples of
compatible/incompatible connections:
Swing Falls: Prior to installation or use, make
considerations for eliminating or minimizing all
swing fall hazards. Swing falls occur when the anchor
is not directly above the location where a fall occurs.
Always work as close to in line with the anchor point as
possible. Swing falls significantly increase the likelihood
of serious injury or death in the event of a fall.
Fall Clearance: There must be sufficient clearance
below the anchorage connector to arrest a fall before
the user strikes the ground or an obstruction. When
calculating fall clearance, account for a MINIMUM
3’ safety factor, deceleration distance, user height,
length of lanyard/SRL, and all other applicable
factors. Diagram shown is an example fall
clearance calculation ONLY.
Connector
closed and
locked to
D-ring. OK.
Two or more
snap hooks or
carabiners
connected to
each other. NO.
Two connectors
to same
D-ring. NO.
Connector
directly to
horizontal
lifeline. NO.
Connector
to integral
lanyard. NO.
Connector directly
to webbing. NO.
Application that
places load
on gate. NO.
Incompatible
or irregular
application,
which may
increase risk
of roll-out. NO.

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
7
Components and Specifications
Made from galvanized steel, polyester, and stainless steel OR aluminum components.
Part # Length Description
11002
11003
11004
11012
6’
6’
6’
6’
Double Blow Blocker Web SRL w/High Strength Aluminum Snap Hooks
Double Blow Blocker Web SRL w/High Strength Aluminum Rebar Hooks
Double Blow Blocker Web SRL w/High Strength Steel Snap Hooks
Double Blow Blocker Web SRL w/High Strength Steel Rebar Hooks
Correct Anchorage Positioning:
This chart details allowable working zones required
to reduce risk of swing falls and improper side loading.
ALWAYS adhere to information specified by chart.
Anchor Distance
From
Leading Edge (Y)
Working Distance
Along Roof Edge
(Either Direction) (X)
Working Angle
From
Perpendicular (Ø)
6’
10’
15’
20’
25’
30’
35’
40’
45’
50’
55’
60’
8’
9’ - 9”
11’ - 7”
13’ - 3”
14’ - 6”
16’
17’ - 2”
18’ - 3”
19’ - 4”
19’ - 10”
21’ - 4”
22’ - 3”
53°
45°
38°
33°
30°
28°
26°
24°
23°
21°
21°
21°
For example, if the anchorage connector is 6 feet from the leading
edge (Y), the working distance (X) is 8’ in each direction from
the perpendicular, which translates to a 53° working angle.
Key:
X: Working Distance
Along Roof Edge
Y: Distance From
Leading Edge
Ø: Total Working
Angle
Y
X
Ø
Carabiner Connection Point
Lifeline Housing
Lifeline
Connector
(show with Snap Hooks)
Example Impact
Indicator (undeployed)

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
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Installation and Use
Double Blow Blockers MUST NEVER be used in Leading Edge (LE) applications.
No free fall is allowed.
ALWAYS avoid lifeline contact with sharp or abrasive edges and surfaces.
In Fall Arrest applications, anchorage connection
point must always be at or above harness dorsal D-ring.
1. All components of the personal fall arrest system must be selected and deemed compatible with
Double Blow Blocker by a Competent Person.
2. Ensure structure to which SRL is to be attached, and on which work is to be performed, is free of all
hazards, including, but not limited to, debris, rot, rust, sharp or abrasive edges and surfaces, and
hazardous materials.
3. Double Blow Blockers are primarily intended for use in mobile applications. Use a compatible
carabiner to connect Double Blow Blocker Carabiner Connection Point to user harness dorsal D-ring.
NEVER attach Double Blow Blocker snap hooks or rebar hooks to harness when used in this manner.
4. Attach Double Blow Blocker snap hook or rebar hook to a compatible anchorage connector. NEVER
make connections to anchorages that will allow harness dorsal D-ring to be positioned above
anchor point.
*If using SRL with rebar hook configuration, rebar hooks must ONLY be connected to compatible
structural rebar.
5. Ensure 100% tie-off will be maintained at all times; ALWAYS attach disengaged snap hook or
rebar hook to a compatible anchorage connector prior to unhooking engaged snap hook or rebar hook.
* Double Blow Blockers configured with snap hooks may also be used in stationary applications, with
the Carabiner Connection Point attached with a compatible carabiner to an anchorage connector at
or above the harness dorsal D-ring. The snap hook of one lifeline leg may then be attached to a
harness D-ring compatible with the application. NEVER attach both lifeline legs to the harness. NEVER
attach rebar hooks to the harness at any time. Double Blow Blocker for MAXIMUM 1 worker ONLY.

Labels
INSPECTION: Before each use inspect device
per user manual including locking function (pull sharply to
test), retraction function, lifeline function, function and condition of
connectors, housing and fasteners, legibility of labels, and any evidence
of defects, damage, or missing parts. Inspection by a Competent Person
required monthly. Inspect impact indicator for signs of deployment. If
lifeline tag is fully exposed, or if lifeline tag stitching is broken, an impact has
occurred and the unit must be removed from service. If a fall has occurred,
remove the unit from service. DO NOT USE IF INSPECTION REVEALS AN
UNSAFE CONDITION.
Date of First Use Serial #
WARNING: Manufacturer's instructions supplied
with this product at time of shipment must be read prior to
use. Instructions must be followed for proper use, maintenance and
inspection. Alterations or misuse of this product or failure to follow
instructions may result in serious injury or death. NOT USER
REPAIRABLE. POWERFUL SPRING INSIDE, DO NOT REMOVE
COVERS. DO NOT REMOVE THIS LABEL.
USE: Anchorage strength requirement 5000 lbs. (22kN). No free fall is allowed.
SRL must always be positioned at or above harness D-ring. Avoid lifeline contact
with sharp edges. For use by trained persons only. Ensure connection to anchorage
is secured properly before use. May be used as a component of a PFAS in HLL
applications. Design, installation and utilization of HLLs must be supervised by a
Qualified Person.
www.guardianfall.com
800.466.6385
HS Alum. Snap Hooks
11002
HS Alum. Rebar Hooks
11003
HS Steel Snap Hooks
11004
HS Steel Rebar Hooks
11012
Mfg. Date (mo/yr)
_______/______________/_______
W
E
B
S
E
L
F
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R
E
T
R
A
C
T
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G
L
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F
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E
www.guardianfall.com
800.466.6385
OSHA 1926.502, 1910.66
ANSI Z359.14-2012,
A10.32-2012
Made in India
Webbing: 6’ Nylon, 7/8" width
Average locking speed: 4.5 ft./Sec.
Max. arresting distance: 54 in
Average arresting force: 900 lbs.
Max. capacity: 130 - 310 lbs.
Class B SRL
Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
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Front
Back

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
10
Inspection Log
Notes
If equipment fails inspection IMMEDIATELY REMOVE FROM SERVICE.
User must inspect prior to EACH use. Competent Person must complete formal inspection at
least EVERY month. Competent Person to inspect and initial inspection log and SRL inspection
grid label.
Date of first use: __________________. Product lifetime is 5 years from date of first use, or, if
not recorded, from date of manufacture, as long as it passes pre-use and Competent Person
inspections.
This inspection log must be specific to one SRL. Separate inspection logs must be used for each
SRL. All inspection records must be made visible and available to all users at all times.
85074 (Rev. B)