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8. Perform the operational inspection procedure. <br /> Operational inspection <br /> Use the FFS remote test tool to inspect the OPV. <br /> WOW <br /> w <br /> 1. Assemble the remote test tool with enough extension sections to reach the OPV. <br /> 2. Insert the remote test tool into the drop tube. You should feel a "pull" when the magnets <br /> are positioned correctly and attract. <br /> 3. Slowly raise the remote test tool about 1%" (38 mm).You should see the flapper move into <br /> the flow path. If you see the flapper moving back and forth, the OPV is functioning normally. <br /> 13 <br />