7
5.3 IMPORTANT CONCRETE AND ANCHORING INFORMATION
1.
Concrete shall have compression strength of at least 3,000 PSI and a minimum
thickness of 6”. Measure the length of the supplied anchor bolts in order to achieve a
minimum anchor embedment of 3-1/4”.
2.
Before drilling 3/4” dia. Holes in concrete floor using holes in column base plate as
guide, make sure the hole distance from the edge is not less than 6”. Hole to hole
spacing should not be less than 6 1/2” in any direction. Concrete thickness should be a
minimum of 6”.
3.
DANGER:
DO NOT
Install on asphalt or other similar unstable surface. Columns are
supported only by anchoring in floor.
4. Shim each column base until each column is plumb. If one column has to be elevated
to match the plane of the other column, full size base shim plates should be used.
Torque anchors to 85 ft-lbs. Shim thickness MUST NOT exceed 1/2”. Adjust the column
extensions plumb.
5.
If anchors do not tighten to 85 ft-lbs. installation torque, replace concrete under each
column base with a 4’ x 4’ x 6” thick 3,000 PSI minimum concrete pad keyed under and
flush with the top of existing floor. Let concrete cure at least 30 days before installing
lifts and anchors.
5.4 ANCHORING TIP SHEET
1.
Use a concrete hammer drill with a carbide tip, solid drill bit the same diameter as the
anchor, 3/4”. (.775 to .787 inches diameter).
Do not use excessively worn bits or bits
which have been incorrectly sharpened.
2.
Keep the drill perpendicular to the concrete while drilling.
3. Let the drill do the work. Do not apply excessive pressure. Lift the drill up and down
occasionally to remove residue to reduce binding.
4.
Drill the hole for anchor bolt completely through the concrete. If an error is made during
the installation of these anchors, this will allow for the anchor bolt to be driven down
into the ground, so that a new anchor may be installed in place (fig.1).
5. Be sure to clean all dust from hole.
(fig. 2).
6. Place a flat washer and hex nut over threaded end of anchor, leaving approximately 1/4
inch of thread exposed above the nut (fig.3). Carefully tap anchor into the concrete until
nut and flat washer are against base plate. Be sure to only tap the top of the anchor and
not the nut. This could cause damage to the threads of the anchor.
7.
Tighten the nut (fig. 4) to
85 ft-lbs
of torque.
DO NOT USE AN IMPACT
WRENCH TO TIGHTEN
ANCHORS!
Summary of Contents for HD2P-12000F
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