Product Manual

Guardian Fall Protection 6305 S. 231st St., Kent, WA 98032 phone: [phone] fax: [phone] www.guardianfall.com
5
Installation and Use
Maximum compatible trench box thickness: 10”.
Prior to use, for Trench Box Guardrail Receiver, plan entire Fall Prevention system:
All leading edges of fall hazards must be blocked, or a supplemental Fall Protection system MUST be used in
combination with, but never connected to, the applicable Fall Prevention system.
1. Selected work area must be free of all hazards, including, but not limited to, debris, rot, decay, cracking,
and hazardous materials. NEVER install Trench Box Guardrail Receiver on top of gravel or other loose or slippery
surfaces. Guardrail systems must be installed a MINIMUM 10’ from power lines and all other electrical hazards.
2. All guardrail posts, guardrails, and any other equipment must be selected and deemed compatible by a
Competent Person. All guardrails MUST be compatible 2” x 4“ or 2” x 6“ construction grade lumber, or snap-on
metal rails. All lumber guardrails must overlap by a minimum 12” at each end.
3. Top-rails must be 42” (+/- 3”) above the work surface.
4. Mid-rails must be halfway between the top edge of the guardrail system and the working level (not the
toeboard).
5. All intermediary rails (not the top-rail or the mid-rail) must not allow for gaps greater than 19”.
6. Toeboards are REQUIRED on surfaces with slopes more than
4/12 (vertical/horizontal), or if a risk exists for tools, equipment,
materials, or other substances to fall down to a lower level.
7. Toeboards must be a minimum 3½” from their top edge to
the work surface, and must not have greater than ¼” clearance
between their bottom edge and the work surface. A trench wall
may function as a toeboard if deemed permissible by
Competent Person.
8. Maximum permitted spacing between Trench Box Guardrail
Receivers is 10’
9. Lay out the job by measuring and spacing the location of
Trench Box Guardrail Systems on the work surface.
Prior to use, for Trench Box Anchor, plan entire PFAS:
1. Ensure all PFAS equipment is selected and deemed compatible with Trench Box Anchor by Competent
Person.
2. Eliminate or minimize all risk of swing fall.
3. Ensure structure to which Trench Box Anchor is to be installed, 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.
4. A Qualified Person must determine that structure to which Trench Box Anchor is to be installed is rated to
withstand minimum required loads. There are no minimum or maximum spacing requirements for Trench Box
Anchors, however 10’ Trench Box Guardrail Receiver spacing applies if guardrails are in place.
5. Trench Box Anchor is rated for loading in any direction provided it is installed as prescribed. Do not use in
combination with horizontal lifeline (HLL) systems.