26 | Assembly and Installation
Installing the ground ring assembly requires these tools:
1/4-in spacers (3) 5/32-in drill bit
Hand drill #3 Phillips drive bit
#14 x 1 wood/metal screws Small square
The turntables have two floor flange pieces. All flanges are pre-cut at the factory
for a drop-in fit.
1. Lay the floor flange into the opening of the raised floor and push outward
to the diameter of the opening.
2. Attach the turntable top to the brass spacers with the hardware provided.
3. Using a pipe clamp and 1/4-in Allen wrenches or 1/4-in pin, place a
spacer between the turntable and floor flange starting in three places in
the center or on the flange.
4. Once tension is placed on all three wrenches, drill a 5/32-in hole through
the counter-sunk holes in the floor flange. Drill completely through the
panel and place screws into the holes.
5. Continue working around the floor flange, completing two or three holes
at a time.
Make sure that a 1/4-in gap between the turntable top and the mounted brush
ring be held as close as possible so that the grounding brushes seat properly.
Also, make sure the flange ends are flush with each other.
6. Continue mounting until all screws are installed. Some screws may fall
between the floor panel joints. Try to position the flanges, making sure as
few screws hit these points as possible, and making sure that the first or
last hole in the flange is not too close to one of these joints. Trim the top
floor joint strips to fit up against the flange.
FLOOR FLANGE INSTALLATION IN A CONCRETE PIT
Installing in a concrete pit is the same as a paneled floor, with the exception of
the mounting hardware. Instead of the #14 x 1-in square socket flat head screws,
use 1/4 x 1-3/4-in Phillips flat head concrete anchors.
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