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Temporary Horizontal Lifeline Application
End
Fitting
CORRECT
When using the Miller Grip Friction Bolt Anchor within a Miller approved Temporary Horizontal Lifeline System, the maximum
number of users is two (2) simultaneously. System capacities are based on the maximum user's weight (including tools, clothing,
etc.) of 400 lbs. (181.4 kg). Miller Fall Protection requires the use of a Miller full-body harness and shock-absorbing lanyard or
self-retracting lifeline/fall limiter that limits fall arrest forces with the horizontal lifeline system. All instructions and warnings pro-
vided with the body wear, connecting device and horizontal lifeline system, must be read and understood before using the equip-
ment.
To meet the requirements set forth in OSHA 1926.502, the Temporary Horizontal Lifeline must be "installed and used as follows:
(i) as part of a complete personal fall arrest system which maintains a minimum safety factor of two; and (ii) under the supervision
of a qualified person." The horizontal lifeline system must include an inline energy absorber that is designed to keep the forces
on each anchorage connector to a maximum of 3,789.5 lbf. (16.9kN). This force requires that the anchorage connectors and the
substrate to which they are attached must be capable of supporting 7,579 lbf. (33.7kN) in the direction of pull. The Miller Grip Fric-
tion Bolt Anchor has been tested and rated for 10,000 lbs. (44kN) to meet OSHA's requirement for the system.
Removal:
I307 Rev A—Page 3 of 4
Friction
Bolt
Spoon Wedges
INCORRECT
4" (101.6mm) to 8" (203.2mm)
(Dimension from end of spoon
to outside end of friction bolt)
This illustration demonstrates a temporary
Horizontal Lifeline Kit being used with two
Miller Grip Friction Bolt Anchorage Connectors
properly installed at each end.
If a Miller Grip anchor becomes stuck, insert a
punch, screwdriver or pointed object into the fric-
tion rock bolt until the tip rests on the striker
plate. (The striker plate is the flat end of the
bushing that is exposed when the unit is placed
in the friction bolt and will be easily visible.) Give
a LIGHT, blunt tap with a hammer or heavy object.
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