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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 /> slot to use with with the 71 SO-TOOL is in the correct position before <br /> ® testable valves 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 /> o tion failure of a pressure decay leak test may result. <br /> 0 <br /> 71 SO -TOOL Modifications for Testable Inlet 5t <br /> STEP 9A: INSERT 71 SO-TOOL OVER INLET TUBE , �. I <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 all 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 drill a 3/ 16" diameter hole in the upper tube using the <br /> evenly drill bushing in the knob as a guide . The drill stop is po- <br /> �y J <br /> sitioned so it will bottom out against the knob after the <br /> �\ } l� tube . If the stop <br /> bit has drilled through the upper drop p <br /> is positioned wrong either no hole will be drilled , or a <br /> � <br /> - - through hole could potentially be drilled through the <br /> l 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 /> zo the inlet tube or into the screw hole the assembly is not <br /> Inlet salvageable . Drill (2 ) more holes in the two remaining <br /> Tube knobs . <br /> key <br /> Drill thru upper <br /> Figure 9A Figure 10A tubeonly <br /> Figure 12A <br /> 8 <br />