Direct Lift PP9 Plus - Manual (Page 10)

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2. Maintain a 6” minimum distance from any slab edge or seam. Hole to hole spacing should be a minimum
6 ½” in any direction. Hole depth should be a minimum of 4”.
3. Shim each column base as required 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 ½” when using the 5 ½” long anchors with the lift. Adjust the
column extensions plumb.
4. If anchors do not tighten to 85 ft-lbs. installation torque, replace the 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. Allow concrete to cure before installing lifts and anchors (typically 2 to 3 weeks).
ANCHORING TIP INSTRUCTIONS
CAUTION!
Anchors must be at least 6” from the edge of the slab or any seam.
1. Use a concrete hammer drill with a carbide tip, solid drill bit the same diameter as the anchor, ¾”. (.775 to
.787 inches diameter). Do not use excessively worn bits or bits which have been incorrectly sharpened.
2. Keep the drill in a perpendicular line while drilling.
3. Let the drill do the work. Do not apply excessive pressure. Lift the drill up and down occasionally to re
move residue to reduce binding.