INSPECTION AND MAINTENANCE SCHEDULE (CONT.)
GORBEL® TETHER TRACK® SWING ARM ANCHOR SYSTEMS: INSPECTION AFTER A
FALL ARREST EVENT
Tether Track®
• Loosen clamping bolts at track supports. This will relieve any stress and misalignment in the track that may
be retained by the hardware. Re-tighten clamping bolts per instructions in Step 5 of this manual.
• At the location in the track where the fall arrest incident took place, measure the track opening and compare
to the dimension and tolerance shown in
diagram A
. Replace track if measurement is not within the
tolerance.
• Verify the Tether Track® has not undergone any other permanent deformation. This can be achieved by
measuring the camber and bow (
diagram B
) of the track.
• Using a string (kite), two clamps, and a measuring device (ruler, tape measure, etc.), measure from
support to support (covering track area where arrest took place).
• Clamp one end of string to the concave face of track, at the support. Travel to the other support
pulling the string taut, not allowing it to sag, and clamp it in same location on track at the support.
• Measure the distance from the string to the track face where the distance is greatest (usually at
mid-span).
• If this measurement is greater than .125” x length of track in feet between supports / 10’ then
replacement of track section is required.
• Repeat this for both bow and camber.
• If arrest took place on cantilevered portion of track, measurement will be from end of track to first
support.
• Visually inspect endstops for fractures or deformation, replace if any are found.
WARNING
All other components are to be inspected per their manufacturer’s instructions.
Diagram A.
Track Opening Specification.
Diagram B.
Camber and Bow.
25
10/12 Rev. E
