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Tape measure z IMPORTANT:Remove all chips and shavingsgener- <br /> ' _ ated 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 /> f body. <br /> rC'r <br /> Mark UpperTube <br /> '.�`' `` (Cut Line) STEP 4: FILE THE UPPER DROP TUBE <br /> '' File the upper tube square,and remove any burrs or <br /> Seam <br /> Figure Z rough edges. Make sure the cut is flat and square. <br /> IMPORTANT:Carefully 1=ilea 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 damp 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 9rie half round fife <br /> the upper d rap tube,this may damage the tube, <br /> causing it to be out of round thereby prohibiting <br /> assembly c f the unit. <br /> Figure 4 <br /> STEPS. 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 /> Is tion: 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 3A r , <br /> 51 <br /> Band Clamp ��'.-y <br /> �r..i' �. <br /> Fine pr[t sandpaper <br /> �1 <br /> r Cut Line Figure 5 <br /> Figure 36 6 <br />