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71 SO -TOOL PROCEDURE BELOW, <br />FOR 71 SO-TOOLC, SEE PAGE 9 <br />FOR 71 SO-TOOLCT, SEE PAGE 10 <br />Note: 71 SO -TOOL can only be used with testable <br />overfill valves if modified as shown below. A 2" <br />wide slot must be added to accommodate cast lug. <br />STEP 9A: INSERT 71 SO -TOOL OVER INLET TUBE <br />To install the 71 SO -TOOL (sold separately) over the inlet <br />tube, first loosen all three knobs, so the tool can pass <br />freely over the inlet tube flange. Align the slot on the <br />tool with the key on the inlet tube and insert the tool <br />down. See Figure 9A. <br />Loosen all <br />Tool slot 1"_k� <br />View holes <br />Hand <br />tighten <br />knobs <br />evenly <br />Figure 9A Figure 10A <br />STEP 10A: TIGHTEN THE 71 SO -TOOL <br />Use the three view holes to ensure that the tool seats <br />out flat against the top of the inlet tube. To prevent <br />vertical movement of the tool during drilling, hand <br />tighten all three knobs evenly to the upper drop tube. <br />See Figure 10A. <br />STEP 11A: PREPARE DRILL AND BIT <br />Confirm that the stop on the 3/16" drill bit supplied <br />with the 71 SO -TOOL is in the correct position before <br />drilling. The stop is factory installed at a distance be- <br />tween 2" to 2-1/16" from the tip with the 71 SO -TOOL. If <br />the stop is not at the correct position it must be fixed <br />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 be <br />2" to 2-1/16". <br />Figure 11 A <br />STEP 12A: DRILL HOLES <br />With the inlet tube and 71 SO -TOOL in place, carefully <br />drill a 3/16" diameter hole in the upper tube using the <br />drill bushing in the knob as a guide. The drill stop is po- <br />sitioned so it will bottom out against the knob after the <br />bit has drilled through the upper drop tube. If the stop <br />is positioned wrong either no hole 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 A 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 />knobs. <br />Figure 12A <br />