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4.
Set the spool aside and drill three holes, 7/8 inch (22 mm) in
diameter by 3.5 inches (90 mm) deep, in the floor at the locations
identified in step 3.
5.
Using a vacuum cleaner, remove all chips and debris from the holes
(and surrounding area) drilled in step 4.
6.
Insert an expansion bolt anchor into each of the three holes in the
floor. Ensure that the threaded end of each bolt anchor is toward the
bottom of each hole, as shown in Figure 3-6.
7.
Reposition the spool over the anchor holes in the floor taking care to
align the three spool-to-floor holes with the anchor holes. Also,
ensure that the spool is positioned such that the "footprint" for the
robot is properly oriented relative to the workcell.
8.
Using a spirit level, verify that the top (mounting) surface of the
spool is level. The surface must be horizontal within ±3 degrees. If
the spool is not level, insert shims between the spool and the floor to
bring the spool within specifications. The shims should be at least
three inches (75 mm) in diameter and have cutouts provided to fit
around the anchor bolts.
9.
Insert a 1/2-13 x 4 inch bolt, fitted with a lock washer and a flat
washer, through the holes in the spool into each of the three spool-
to-floor anchor holes. Tighten the bolts to a recommended torque of
40 foot-pounds.
10. Re-check the robot-mounting surface of the spool using the spirit
level and re-shim as required to bring the mounting surface
horizontal within ±3 degrees.
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