8.1.1 Ensure that the means of extinguishment
are close at hand (see 4.3).
8.1.2 Open out the test rig and thread the covering
fabric and, if any, the fabric interliner behind the hinge bar.
8.1.3 Place the filling pieces under the covering
fabric and, if any, the fabric interliner locating the filling pieces
in the frame recesses, and allowing approximately 20 mm of fabric
to wrap round the inside of the frames.
8.1.4 Lock the frames at right angles using the
bolts or pins ensuring that the filling components are not displaced.
8.1.5 Fasten the fabric over the top, bottom and
sides of the frame using clips and ensure that the fabric or fabrics
are secured and under even tension.