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71 SO-TOOLC PROCEDURE BELOW, <br />FOR 71SO-TOOL, SEE PAGE S <br />FOR 71 SO•TOOLCT, SEE PAGE 10 <br />Motet 71 SO-TOOLC can only be used with testable <br />overfill valves of modified as shown below. <br />_ -- I •. <br />---------- <br />Add <br />Acid a 10-24 UNC thread or similar <br />to all three legs of the 71 SO- <br />TOOLC in the area shown. Use set <br />screws to secure tool to upper <br />tube. <br />71 SO-TOOLC Modifications for Testable Inlet <br />STEP 96: INSERT 71 SO -TOOL[ OVER INLET TUBE <br />To instail the 71 SO-TOOLC (svld separately) over Lhe <br />inlet tube, first loosen the thumb screw, so the tool can <br />pass freely over the inlet tube flange. Align the slot on <br />the tool with the key on the inlet Mabe and insert the <br />tool down. See Figure 9B. <br />Looe <br />thus <br />Scre <br />Hand tighten thumb screw <br />STEP 106: TIGHTEN THE 71 SO -TOOL[ <br />Ensure that the tool seats flat against the top of the inlet <br />tube. To prevent vertical movement of the tool during <br />drilling, hand tighten the thumb screw against the up- <br />per drop tube. See Figure 108. <br />STEP 11 B: PREPARE DRILL AND BIT <br />Confirm that the stop on the 3!9 6" drill bit supplied <br />with the 71 SO-TOOLC is in the correct position before <br />drilling. The stop is factory installed at a distance be- <br />tween 1-3116" to 1-114" from the tip with the 71 SO- <br />TOOLC. If the stop is not at the correct position it must <br />be fixed before drilling, <br />CAUTION: If the drill stop is not in the proper loca- <br />tion failure of a pressure decay leak test may result. <br />Tip to stop dimension must <br />be 1-3116m to 1-114" <br />Figure 7 7B <br />STEP 12B: DRILL MOLES <br />With the inlet tube and 71 SO-TOOLC in place, carefully <br />drill a 3116" dlameter hole in the upper tube using the <br />hole in the 71 SO-TOOLC as a guide. The drill stop is po- <br />sitioned so it will bottarn out against the tool after the <br />bit has drilled through the upper drop tube. If the stop <br />is positioned wrong either no bole will be drilled, or a <br />through hole could potentially be drilled through the <br />inlet tube. If no hole is drilled return to step 11 B and <br />check the stop dimension, If a hole is drilled through <br />the inlet tube or into the screw hole the assembly is not <br />salvageable. Drill (2) more holes in the two remaining <br />guide holes. <br />Figure 128 <br />OnA through upper tube Only <br />