Installation Guide
14
STEP 6
INSTALLATION OF POWER DROP ANCHORS
D
B
A
C
E
1. Before proceeding, double check location and measurements, make
certain that the base plates of each column are aligned with the chalk/
crayon lines. The concrete must be minimum of 4" (101mm) thick with a
minimum compressive strength of 3000 psi (20 MPa). FOLLOW
PROCEEDURE EXACTLY FOR PROPER FITTING AND ALIGNMENT
OF ANCHORS. (See gure 10)
2. Use the squared-up base plate on the column as a guide. Using a
rotary hammer drill with a 7/8" concrete bit, drill out each hole in the
column to the minimum depth of 5". Do not ream the hole or allow the
drill to wobble. When removing the bit be careful not to move the
columns. Having someone secure or stand on the columns can be helpful.
Repeat for all holes on both columns and move the columns out of the way.
After drilling, thoroughly clean hole using a vacuum cleaner or compressed
air and a nylon brush. (See gure 11)
3. Set the anchor embedment depth: Fully thread the 5/8"
Setting Tool (sacricial hex bolt) with assembled nut and
washer into the anchor. Set the distance between the top of
the anchor and the bottom of the nut/washer to 5/8".
(See gure 12)
4. After setting the nut/spacer, place the anchor into the hole
and hammer downward on the setting tool until the nut and
washer makes contact with the surface of the concrete.
(See gure 13)
5. To set the anchor tighten the nut while holding the bolt
head (to assure the anchor does not spin in place) Do not
use an impact wrench for this step. Tighten 3 full turns to
reach an installation torque of 90 ft-lbs.
(See gure 14)
NOTE: Always wear safety glasses.
Follow drill manufacturer’s instructions.
Use only solid carbide-tipped drill bits
meeting ANSI B212.15 diameter
standards.
Fig. 11
Fig. 12
Fig. 13 Fig. 14
Fig. 10
Set Tool
Hex Bolt
Spacer
5/8”
(16mm)
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Drill hole
a minimum of
5" (127mm) deep.
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▶
▶
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▶
▶
Anchor
▶
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6. Once the anchor is set remove the cap screw and clear the
anchor with compressed air to remove any concrete dust from
the threads.