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Tape measure ----� IMPORTANT: Remove all chips and shavings gener- <br /> +;' ;� IAP aced In steps 3 thru 5 out of the Cut end of the tube. DO <br /> NOT remove chips and shavings by dumping thru valve <br /> body. <br /> Mark Upper Tube <br /> STEP 4: FILE THE SIPPER DROP TUBE <br /> r.- (Cut Line) <br /> File the upper tube square, and remove any burrs or <br /> Seam <br /> Figure 2 rough edges. Make sure the cut is flat and square. <br /> IMPORTANT: Carefully filea good chamfer on the <br /> STEP 3: CUT THE UPPER DROP TUBE inside edge of the drop tube to provide a lead-in for the <br /> polypak seal and inlet tube installed in Step 8. <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 /> CAUTIO _ DO NOT use a pipe or tubing cutter to cut Fine half round file <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 4 <br /> STEP s: 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 /> j � <br /> CaH <br /> tion: Failure to properly chamfer, sand, and <br /> clean the drop tube may cut the seat and result in a <br /> failure of a pressure decay leak test. <br /> Figure 3A <br /> Band Clamp — <br /> Fine Arlt sandpaper <br /> �✓ f Cut line Figure 5 <br /> Figure 30 6 <br />