Figure 43: Masking Tape On ¼" Concrete Drill Bits For Holes C1, C2 & C3 For ¼" X 2-¼" Long - RST Instruments RSTAR Affinity Installation And User Manual

3. If the ¼" x 2-¼" long wedge anchors are provided, wrap masking tape or
equivalent tape around 2x ¼" carbide-tipped steel concrete drill bits to set
the required drill depths for holes C1, C2 & C3. The distance should be set
as from the start of the drill shank (not the tip) to the start of the masking
tape as shown below.
Figure 43: Masking Tape on ¼" Concrete Drill Bits for Holes C1, C2 & C3 for ¼" x 2-¼"
NOTE: The drill depth will depend on the length of the concrete wedge anchor to
be used. If the ¼" x 2-¼" long wedge anchors are provided, the drill depth should
be 1-1/8" deep.
4. Estimate the desired location of the first hole to drill. The first hole
corresponds to mounting hole C1 for both the Drilling Template and Affinity
Tilt Logger.
5. Use the first prepared drill bit for hole C1 to drill the first hole for the wedge
anchor. Drill until the masking tape touches the concrete surface. Ensure
that the hole axis is perpendicular to the concrete surface and is 1-1/8"
deep.
WARNING: Do not use the Drilling Template as a guide to drill the first hole.
The Drilling Template may spin uncontrollably about the drill bit.
6. Install the first wedge anchor by gently hammering it into the drilled hole.
When hammering, avoid damaging the concrete wedge anchor thread tip as
this may prevent the nut from engaging the threads.
7. The wedge anchor should be perpendicular and protrude out about 1-1/8"
above the concrete surface. There should be near complete threads on the
wedge anchor protruding out of the concrete.
PSM0005A
Released: 23 Jan 2025
long Wedge Anchor
RST Instruments Ltd.
RSTAR Affinity Tilt Logger
Installation and User Manual
Page 42