Concrete D-Bolt Anchor (417C) - Honeywell Miller D-Ring Manual De Instrucciones Para El Usuario

3.3 Concrete D-Bolt Anchor (417C)

Warnings and Limitations
• For use by ONE person only. Maximum capacity is 310 lbs. (140.6kg), including tools. —
DO NOT EXCEED THIS WEIGHT.
• Use only Miller approved bolts and fasteners with these anchors.
• The Miller 417C Concrete D-Bolt Anchor must only be installed to normal weight, com-
pletely cured concrete with a compressive strength of at least 2000 psi (13.8 MPa).
• The 417C Concrete D-Bolt Anchor may be installed on overhead horizontal or vertical
surfaces. Other installation applications must be approved by Miller Fall Protection.
• Always contact Miller Fall Protection for approval before using the 417C Concrete D-Bolt
Anchor in any horizontal lifeline application.
Model No.
D-bolt anchor with concrete expansion bolt (5/8" x 6"
417C
anchor bolt with 5/8" lockwasher)
Installation
When considering location, ensure there is a minimum of at least 9 in. (228mm) from all edges
and control joints (see Fig. 3a).
WARNING: Do not install the Concrete D-Bolt Anchor any closer than 9 in.
(228mm) from any edge or install into concrete that is cracked, damaged,
broken or deteriorated.
1. Hammer drill a 5/8" (15.9mm) hole to a minimum of 4-5/8" (117.5mm) embedment depth (see
Fig. 3b).
2. Clean all debris from hole with a blow out bulb (see Fig. 3c).
3. To protect the threads during installation, place the nut onto the expansion bolt. Then drive
the bolt into the hole until 1-7/16" (36.5mm) to 1-3/4" (44.45mm) of the stud remains above
the surface (see Fig. 3d).
4. Remove the nut and install the D-anchor to the bolt. Then install the flatwasher, followed by
the lockwasher and nut. NOTE: A minimum of 2 threads should protrude past the nut after
assembly. Torque to between 80-85 ft. lbs. (see Fig. 3e).
WARNING: Do not overtighten. Excessive tension can cause damage to the anchorage
system.
Removal: If installed in a bottomless hole, D-anchor can be removed and bolt can be driven
flush with the surface after use.
Us er I ns t r u ct ion s - En gli sh
Description
12
Material
Drop Forge Alloy
Steel
Weight
1 lb. 4 oz.
(0.6kg)