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71 SO -TOOLCT PROCEDURE BELOW, <br /> FOR 71 SO -TOOL, SEE PAGE 8 71S0-TOOLCT <br /> FOR 71 SO -TOOLC, SEE PAGE 9 <br /> O <br /> STEP 9C : INSERT 71 SO-TOOLCT OVER INLET TUBE <br /> To install the 71 SO-TOOLCT (sold separately) over the <br /> inlet tube, first loosen the thumb screws, 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 tube and insert the <br /> tool down . See Figure 9C . Tip to stop dimension must <br /> be 1 -3/ 16" to 1 - 1 /4" <br /> Loosen Figure 11 C <br /> thumb Hand tighten STEP 12C : DRILL HOLES <br /> screws Tool Slot thumb screws With the inlet tube and 71 SO-TOOLCT in place, carefully <br /> drill a 3 / 16 " diameter hole in the upper tube using the <br /> hole in the 71 SO-TOOLCT as a guide . The drill stop is <br /> positioned so it will bottom out against the tool after <br /> the bit has drilled through the upper drop tube . If the <br /> stop is positioned wrong either no hole will be drilled , <br /> LFC, or a through hole could potentially be drilled through <br /> the inlet tube . If no hole is drilled return to step 11 C <br /> and check the stop dimension . If a hole is drilled <br /> through the inlet tube or into the screw hole the assem - <br /> bly is not salvageable . Drill (2) more holes in the two <br /> Inlet remaining guide holes . <br /> Tube <br /> Key o <br /> Figure 9C Figure 10C <br /> STEP 10C : TIGHTEN THE 71 SO-TOOLCT - � <br /> Ensure that the tool seats flat against the top of the inlet <br /> tube. To prevent vertical movement of the tool during Drill through upper tube only <br /> drilling , hand tighten the thumb screws against the up- <br /> per drop tube . See Figure 10C . <br /> STEP 11 C: PREPARE DRILL AND BIT <br /> Confirm that the stop on the 3 /16" drill bit supplied Figure 12C <br /> with the 71 SO-TOOLCT is in the correct position before <br /> drilling . The stop is factory installed at a distance be- <br /> tween 1 - 3 / 16 " to 1 - 1 /4" from the tip with the 71 SO- <br /> TOOLCT. 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 /> 10 <br />