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OPW Installation, Operation, and Maintenance Manual, Page 15 Figure 1 Taperneasure t Riser Pipe w Face Seal ( Ta Adaptor To Tar* Top it to (B) Tank Bottom 1 4" NPT Nipple 1 •� a t I oPw spin Container i Measure to here Jack Screw or ac crew installation (Top K4 of Face Seal Adaptor) \O -Ring Seal --Face Seal Adaptor Figure 1A Tapah4easure "--�- TransferMarkFrom Stick_to_Up-_per Tube Seam Figure 2 (For "C"less than or equal to 6-1/2"only) STEP 3: CUT THE UPPER DROP TUBE Carefully saw through the tube squarely, at the mark made in Step 2. Use a hacksaw with a new fine-tooth blade. Rotating the upper tube as the sawing progress- es will minimize run out and ensure a square 90 -degree cut. A piece of paper, taped square with the tube or a hose clamp can be used as guides for making a square cut. Executive Order VR -10z -O CAUTION - DO NOT use a pipe or tubing cutter to cut the upper drop tube, this may damage the tube, causing it to be out of round thereby prohibiting assembly of the unit. Figure 3 STEP 4: FILE THE UPPER DROP TUBE File the upper tube square, and remove any burrs or rough edges. Make sure the cut is flat and square. IMPORTANT: Carefully file a good chamfer on the inside edge of the drop tube to provide a lead-in for the o -ring and inlet tube installed in Step 6. CAUTION: Failuretoproperly Figure apply and cure sealant may re- sult in a failure of a pressure de- cay leak test. STEP 5: APPLY SEALANT Prepare sealant by thoroughly mixing 1/30feachpackettogeth- eruntil color is uniform. Gener- ou sly apply sealanttothe inside diameter of the upper drop tube. Figure Make sure coverage is completely around the tube as shown in Fig. 5. STEP 6: INSTALL INLET TUBE Install o -ring in the o -ring groove of inlet tube (DO NOT USE GREASE), Inserttheinlettube into the upper tube until it seats against the flange on the upper inlet tube. 4 5 Figure 6 In Grcruve