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71 SO-TOOLC PROCEDURE BELOW, STEP 11 B: PREPARE DRILL AND BIT <br /> FOR 71 SO-TOOL,SEE PAGE 8 Confirm that the stop on the 3/16"drill bit supplied <br /> FOR 71 SO-TOOLCT,SEE PAGE 10 with the 71 SO-TOOLC is in the correct position before <br /> drilling. The stop is factory installed at a distance be- <br /> Note: 71 SO-TOOLC can only be used with testable tween 1-3/16"to 1-1/4"from the tip with the 71 SO- <br /> overfill valves if modified as shown below. 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 /> 1 0 1 tion failure of a pressure decay leak test may result. <br /> o � qpi <br /> k 71 SO-TOOLC <br /> I � O <br /> �I o <br /> I I <br /> li <br /> Add a 10-24 UNC thread or similar <br /> to all three legs of the 71 SO- Tip to stop dimension must <br /> TOOLC in the area shown. Use set be 1-3/16"to 1-1/4" <br /> screws to secure tool to upper Figure 118 <br /> tube. <br /> STEP 12B: DRILL HOLES <br /> 71 SO-TOOLC Modifications for Testable Inlet With the inlet tube and 71 SO-TOOLC in place,carefully <br /> drill a 3/16"diameter hole in the upper tube using the <br /> STEP 913: INSERT 71 SO-TOOLC OVER INLET TUBE hole in the 71 SO-TOOLC as a guide. The drill stop is po- <br /> To install the 71 SO-TOOLC(sold separately)over the sitioned so it will bottom out against the tool after the <br /> inlet tube,first loosen the thumb screw,so the tool can bit has drilled through the upper drop tube. If the stop <br /> pass freely over the inlet tube flange. Align the slot on is positioned wrong either no hole will be drilled,or a <br /> the tool with the key on the inlet tube and insert the through hole could potentially be drilled through the <br /> tool down. See Figure 9B. inlet tube. If no hole is drilled return to step 11 B and <br /> Tool Slot Hand tighten thumb screw check the stop dimension. If a hole is drilled through <br /> the inlet tube or into the screw hole the assembly is not <br /> tb <br /> salvageable. Drill (2) more holes in the two remaining <br /> o guide holes. <br /> Loos ___thuscre �t <br /> e �3 <br /> Key <br /> Drill through uppertubeonly <br /> STEP 10B: TIGHTEN THE 71 SO-TOOLC Figure 12B <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 10B. <br /> 9 <br />