DBI-Sala 2103670 User Manual
Instructions for the following series products:
U-BOLT ROOF ANCHORS
(See back page for specic model numbers.)
UseR INsTRUcTION MANUAl
U-bOlT ROOf ANchOR
This manual is intended to be used as part of an
employee training program as required by OSHA.
WARNING: This product is part of a personal fall arrest or restraint 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 equipment, or failure to follow these 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 DBI/SALA.
IMPORTANT: Record the product identication information from the ID label in the inspection and maintenance
log in section 9.0 of this manual.
Figure 1 - U-bolt Roof Anchor Kit
© Copyright 2007, DB Industries, Inc.
DescRIPTION
2103670: Stainless steel U-bolt and anchor clamp, designed to be attached to a wood
member (truss, rafter, cord, etc.) up to 2 x 8 inches. U-bolt includes a ring for connection of
a personal fall arrest or restraint system. See Figure 1.
2103671: Same as 2103670, sized for 2 x 10 or 2 x 12-inch wood member.
1.0 APPlIcATIONs
1.1 PURPOSE: DBI/SALA’s U-bolt roof anchor is designed to be used as a permanently attached anchorage
connector on wood frame structures. This anchorage connector is to be used as part of a personal fall arrest
or restraint system. Do not attach a lifeline between two or more roof anchors. Do not hang, lift, or support
tools or equipment from the roof anchor. Do not attach guylines for antennae, phone lines, etc.
A. FALL ARREST: The roof anchor is used as part of a personal fall arrest system. Personal fall arrest
systems typically include a full body harness and a connecting subsystem (energy absorbing lanyard).
The maximum permissible free fall is six feet.
B. RESTRAINT: The roof anchor is used as part of a restraint system. Restraint systems typically include a
full body harness and a lanyard or restraint line to prevent the user from reaching a fall hazard (leading
edge roof work). No vertical free fall is permitted.
1.2 LIMITATIONS: Consider the following application limitations before using this equipment:
A. ROOF STRUCTURE: These roof anchors are intended to be installed on wood members (truss, rafter,
cord, etc.) from 2 x 4 inches to 2 x 12 inches. The roof structure must be capable of meeting the
anchorage strength requirements specified in section 2.3. Do not use these roof anchors on members or
materials (including steel) other than those specified in this manual.
B. CAPACITY: These roof anchors are designed for use by persons with a combined weight (person,
clothing, tools, etc.) of no more than 310 lbs. No more than one person may be connected to a single
roof anchor.
C. FREE FALL: Personal fall arrest systems used with these roof anchors must be rigged to limit the
free fall to six feet (according to ANSI Z359.1). See subsystem manufacturer’s instructions for more
information.
D. FALL CLEARANCE: Ensure that adequate clearance exists in your fall path to prevent striking an object.
The amount of clearance required is dependent on the type of connecting subsystem (energy absorbing
lanyard, self retracting lifeline, etc.) and the anchorage location. See subsystem manufacturer’s
instructions for more information.
E. ENVIRONMENTAL HAZARDS: Use of this equipment in areas where environmental hazards are
present 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 sharp edges.
F. TRAINING: This equipment is intended to be used by persons trained in its correct application and use.
1.3 APPLICABLE STANDARDS: Refer to national standards, including ANSI Z359.1, and local state,
and federal (OSHA) requirements for more information on personal fall arrest systems and associated
components.
2.0 sYsTeM ReQUIReMeNTs
2.1 COMPATIBILITY OF CONNECTORS: DBI/SALA equipment is designed for use with DBI/SALA approved
components and subsystems only. Substitutions or replacements made with non-approved components
or subsystems may jeopardize compatibility of equipment and may effect the safety and reliability of the
complete system.
COMPATIBILITY: 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.
2
Contact DBI/SALA if you have any questions about compatibility.
Connectors ( hooks, carabiners, and D-rings) must be capable of supporting at least 5,000 lbs. (22.2kN).
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 2. Connectors
must be compatible in size, shape, and strength. Self locking snap hooks and carabiners are required by
ANSI Z359.1 and OSHA.
Figure 2 - Unintentional Disengagement (Rollout)
If the connecting element that a snaphook (shown) or carabiner attaches to is undersized or irregular in shape, a
situation could occur where the connecting element applies a force to the gate of the snaphook or carabiner. This
force may cause the gate (of either a self-locking or a non-locking snaphook) to open, allowing the snaphook or
carabiner to disengage from the connecting point.
Small ring or other
noncompatibly
shaped element
1. fORce Is APPlIeD TO
The sNAPhOOk.
2. The GATe PResses
AGAINsT The
cONNecTING RING.
3. The GATe OPeNs AllOWING
The sNAPhOOk TO slIP Off.
2.2 MAKING CONNECTIONS: Only use self-locking snap hooks and carabiners with this equipment. Only use
connectors that are suitable to each application. 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.
DBI/SALA connectors (snap hooks and carabiners) are designed to be used only as specied in each
product’s user’s instructions. See Figure 3 for inappropriate connections. DBI/SALA snap hooks and
carabiners should not be connected:
A. To a D-ring to which
Figure 3 - Inappropriate Connections
another connector is
attached.
B. In a manner that would
result in a load on the
gate.
C. In a false engagement,
where features that
protrude from the
snap hook or carabiner
catch on the anchor
and without visual
confirmation 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 specifically allows such a connection).
3
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.
2.3 ANCHORAGE STRENGTH: The anchorage strength required is dependent upon the application:
A. FALL ARREST: The roof anchor must be attached to a roof member capable of sustaining static loads
in the directions permitted by the personal fall arrest system of at least: 3,600 lbs. with certification of
a qualified person, or 5,000 lbs. without certification. See ANSI Z359.1 for certification definition. When
more than one roof anchor is attached to a roof member, the strengths stated above must be met at
each roof anchor location independently.
FROM OSHA 1910.500 AND 1910.66: 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 PFAS which maintains a safety factor of at least two, and is under the supervision of a qualified
person.
B. RESTRAINT: The roof anchor must be attached to a roof member capable of sustaining static loads in
the directions permitted by the restraint system of at least 3,000 lbs. When more than one roof anchor
is attached to a roof member, the strengths stated above must be met at each roof anchor location
independently.
3.0 OPeRATION AND Use
WARNING: Do not alter or intentionally misuse this equipment. Consult with DBI/SALA if using this equipment
with components or subsystems other than those described in this manual. Some subsystems and component
combinations may interfere with the operation of this equipment.
WARNING: Do not use this system if you are unable to tolerate the impact from a fall arrest. Age and tness
can seriously affect your ability to withstand a fall. Pregnant women and minors must not use this equipment.
3.1 BEFORE EACH USE of this equipment, carefully inspect it according to steps listed in section 5.0 of this
manual.
3.2 PLAN your fall arrest or restraint system before using this equipment. Consider all factors that will affect
your safety during use of this equipment. Consider the following points when planning your system:
A. ANCHORAGE: Select a rigid anchorage point that is capable of sustaining the loads specified in section
2.3. Locate the roof anchor according to section 3.3. For fall arrest applications, select anchorage
locations that will minimize free fall and swing fall hazards. For restraint applications, locate the
anchorages such that no vertical free fall is possible.
B. FREE FALL: To avoid increased free fall distance, do not work above the anchorage level. Rig personal
fall arrest systems so that the free fall is limited to six feet (ANSI Z359.1). Rig restraint systems such
that no vertical free fall is possible.
C. FALL ARREST FORCES: The personal fall
arrest system must limit fall arrest forces
to 1,800 lbs. when used with a full body
harness. Do not use a body belt for fall
arrest applications.
D. SWING FALLS: See Figure 4. 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. Minimize
swing falls by working as directly below the
anchorage point as possible. Do not permit a
swing fall if injury could occur.
Figure 4 - Swing Fall
E. WORK ZONE: See Figure 5. Do not extend
your work zone more than 30 degrees from
4
Loading...