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Tape measure IMPORTANT: Remove all chipA.4 sb" AWPAenerated <br />in steps 3 thru 5 out of the cut end of the tube. DO NOT <br />remove chips and sh"fftor 0ArP*' tTH <br />body. DEPARTMENT <br />Mark Upper Tube <br />(Cut Line) <br />Seam <br />Figure 2 <br />STEP 3: CUT THE UPPER DROP TUBE <br />Attach the supplied band clamp to the upper tube just <br />below the mark and ensure that it is assembled square <br />to the tube. The clamp can be used as a guide for mak- <br />ing a square cut. If a vise is used, clamp on the valve <br />body casting only to avoid damage to the float and <br />tubes (See Figure 3A). Carefully saw through the tube <br />squarely, at the mark made in Step 2. Use a hacksaw <br />with a new fine-tooth blade. Rotating the upper tube <br />as the sawing progresses will minimize run out and en- <br />sure a square 90 -degree cut. Remove the band clamp <br />after tube is cut. <br />CAUTION - DO NOT use a pipe or tubing cutter to cut <br />the upper drop tube, this may damage the tube, <br />causing it to be out of round thereby prohibiting <br />assembly of the unit. <br />Figure am <br />Figure 3B <br />STEP 4: FILE THE UPPER DROP TUBE <br />File the upper tube square, and remove any burrs or <br />rough edges. Make sure the cut is flat and square. <br />IMPORTANT: Carefully file a good chamfer on the in- <br />side edge of the drop tube to provide a lead-in for the <br />polypak seal and inlet tube installed in Step 8. <br />Figure 4 <br />STEP 5: SAND THE UPPER DROP TUBE <br />Sand the inside of the drop tube with sandpaper and/or <br />steel wool to remove all burrs and sharp edges. After <br />sanding wipe down the inside of the tube with a clean <br />rag from the top to approximately 4 inches down to <br />remove any debris. <br />Caution: Failure to properly chamfer, sand, and <br />clean the drop tube may cut the seal and result in a <br />failure of a pressure decay leak test. <br />Figure 5 <br />