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Tape measure <br />ti <br />� Mark Oppri-rube <br />;Cut Lkwl <br />Seam <br />RlgUnt2 <br />STEP 3: CU7'f'Hl; UPPER PFOP TUBE <br />Attach the supplied band clamp to theuppertube just <br />below the mark and ensure that it is assembled square <br />to the tube, The damp to n be used as a guide for rnak- <br />ing a snuare cut. If a vise is used, clamp on the valve <br />body casting onlyto avoid damage to the float and <br />tubes tSee qgura W. CarefuOy saw Inmmg4 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 square4Pdegree cut, tiemove the band clamp <br />after tube is cut <br />CAtIQQ1j- 00 NW ua a pipe or tubktg cutter to cut <br />the upper drop tube, this may da mage the tube, <br />causing It to be out of Kxind thereby prohibitktg <br />assan+bfy of the unit, <br />Flpun 3A <br />el <br />lctanp ,t, . <br />1' <br />fINPWANY. Remove all chips and shavings gener- <br />ated in steps 3 thru 5 out of the 433 erw of the tribe_ DO <br />NOT remove chips and shavings by dumping thru valve <br />body. <br />STil� 4 Fff E Tiff IiPPER 171tOP TU6E <br />dile the upper tube square, and remove any burrs or <br />rough edges. Make sure the cut Is flat and square. <br />PORTANT, carefully file a good chamfer on the <br />Inside edge of the drop tube to provide a lead-in forthe <br />poiypak seal and inlet tube installed in Step g, <br />ifQur+e.t <br />STEP S: SAND THE UPPER OROPTUBE <br />Sand the Inside of the drop tube with sandpaper and/or <br />steeI wool to remove all burrs and sha rp edges. After <br />sanding wipe down the inside ofthe tube w4h a dean <br />rag horst the wp to appriaAmately 4 inches down to <br />remove any debris. <br />Sayj[gp; Failure W properly cha <br />mfer, sand, and <br />clean the drop wbe may art the seal and resuk ie a <br />failure of a prim"re decay leak test. <br />