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71 SO-TOOL PROCEDURE BELOW, STEP 10A: TIGHTEN THE 71 SO-TOOL <br /> FOR 71 SO-TOOLC, SEE PAGE 9 Use the three view holes to ensure that the tool seats <br /> FOR 71 SO-TOOLCT, SEE PAGE 10 out flat against the top of the inlet tube. To prevent <br /> vertical movement of the tool during drilling, hand <br /> Note: 71 SO-TOOL can only be used with testable tighten all three knobs evenly to the upper drop tube. <br /> overfill valves if modified as shown below. A 2" See Figure 10A. <br /> wide slot must be added to accommodate cast lug . <br /> -- STEP 11 A: PREPARE DRILL AND BIT <br /> Add 2" wide Confirm that the stop on the 3/16" drill bit supplied <br /> ' with the 71 SO-TOOL is in the correct position before <br /> ir slot to use with <br /> - ` drilling. The stop is factory installed at a distance be- <br /> testable valves <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 /> �� if tion failure of a pressure decay leak test may result. <br /> 0 <br /> 71 SO-TOOL Modifications for Testable Inlet <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 Tip to stop dimension must be <br /> freely over the inlet tube flange. Align the slot on the 2" to 2- 1 /16". <br /> tool with the key on the inlet tube and insert the tool <br /> down. See Figure 9A. Figure 11A <br /> Loosen an Hand STEP 12A: DRILL HOLES <br /> Tool slot knobs view holes tighten With the inlet tube and 71 SO-TOOL in place, carefully <br /> knobs <br /> evenly drill a 3/16' diameter hole in the uppertube 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 /> s is positioned wrong either no hole will be drilled, or a <br /> PJ through hole could potentially be drilled through the <br /> ellinlet 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 /> inlet salvageable. Drill (2) more holes in the two remaining <br /> TOS knobs. <br /> key <br /> FSA <br /> Drill thru upper l <br /> Figure 9A Figure l0A �., tube only <br /> � Y <br /> Figure 12A <br /> s <br />