not compatible. Visually ensure all connectors are fully closed and locked. Connectors
(snap hooks and carabiners) are designed to be used only as specified in each product's
user's instructions. See Figure 2.
DO NOT:
A. attach multiple snap hooks or carabiners to an anchorage.
B. attach snap hooks or carabiners in a manner that may result in the gate being
loaded.
C. allow a false engagement, where features that protrude from the snap hook or
carabiner catch on the extender.
D. attach snap hooks or carabiners to each other.
E. attach snap hooks or carabiners to webbing or rope lanyard or tie‐back (unless the
manufacturer's instructions for both the lanyard and connector specifically allows
such a connection).
F. attach snap hooks or carabiners 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.
3.5 Personal Fall Arrest System: PFAS used with this equipment must meet ANSI Z359
requirements and applicable OSHA regulations. An FBH must be worn when this
equipment is used as a component of a PFAS. OSHA regulations require the PFAS to
arrest the user's fall with a maximum arresting force of 1,800 lbs., and limit the free fall
to 6 feet or less. If the maximum free fall distance must be exceeded, the employer
must document, based on test data, that the maximum arresting force will not be
exceeded, and the PFAS will function properly.
3.5.1 PFAS Anchorage Strength: An anchorage selected for PFAS must have a strength
able to sustain a static load applied in the direction permitted by the PFAS of at least:
two times the maximum arrest force permitted when certification exists, or
5,000 lbs. (22.2 kN) in the absence of certification.
3.6 Restraint System: Restraint systems utilizing a D‐ring extender must be designed by
a Competent Person.
3.7 Definitions: The following are definitions of terms as defined in ANSI Z359.0‐2007.
Authorized Person: A person assigned by the employer to perform duties at a location
where the person will be exposed to a fall hazard (otherwise referred to as "user" for
the purpose of these instructions).
Certified Anchorage: An anchorage for fall arrest, positioning, restraint, or rescue
systems that a qualified person certifies to be capable of supporting the potential fall
forces that could be encountered during a fall or that meet the criteria for a certified
anchorage prescribed in the standard.
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.
Qualified Person: A person with a recognized degree or professional certificate and with
extensive knowledge, training, and experience in the fall protection and rescue field
who is capable of designing, analyzing, evaluating and specifying fall protection and
rescue systems to the extent required by the standard.
Rescuer: Person or persons other than the rescue subject acting to perform an assisted
rescue by operation of a rescue system.
4. INSTALLATION AND OPERATION
Installation of D‐Ring Extenders must be under the supervision of a Competent Person
trained in their design and use.