8
71SO-TOOL PROCEDURE BELOW,
FOR 71SO-TOOLC, SEE PAGE 9
FOR 71SO-TOOLCT, SEE PAGE 10
Note: 71SO-TOOL can only be used with testable
overfill valves if modified as shown below. A 2”
wide slot must be added to accommodate cast lug.
71SO-TOOL Modifications for Testable Inlet
STEP 9A: INSERT 71SO-TOOL OVER INLET TUBE
To install the 71SO-TOOL (sold separately) over the inlet
tube, first loosen all three knobs, so the tool can pass
freely over the inlet tube flange. Align the slot on the
tool with the key on the inlet tube and insert the tool
down.
See Figure 9A.
STEP 10A: TIGHTEN THE 71SO-TOOL
Use the three view holes to ensure that the tool seats
out flat against the top of the inlet tube. To prevent
vertical movement of the tool during drilling, hand
tighten all three knobs evenly to the upper drop tube.
See Figure 10A.
STEP 11A: PREPARE DRILL AND BIT
Confirm that the stop on the 3/16” drill bit supplied
with the 71SO-TOOL is in the correct position before
drilling. The stop is factory installed at a distance be-
tween 2” to 2-1/16” from the tip with the 71SO-TOOL. If
the stop is not at the correct position it must be fixed
before drilling.
CAUTION: If the drill stop is not in the proper loca-
tion failure of a pressure decay leak test may result.
STEP 12A: DRILL HOLES
With the inlet tube and 71SO-TOOL in place, carefully
drill a 3/16” diameter hole in the upper tube using the
drill bushing in the knob as a guide. The drill stop is po-
sitioned so it will bottom out against the knob after the
bit has drilled through the upper drop tube. If the stop
is positioned wrong either no hole will be drilled, or a
through hole could potentially be drilled through the
inlet tube. If no hole is drilled return to step 11A and
check the stop dimension. If a hole is drilled through
the inlet tube or into the screw hole the assembly is not
salvageable. Drill (2) more holes in the two remaining
knobs.
Add 2” wide
slot to use with
testable valves
Figure 9A
Figure 10A
Figure 12A
Tip to stop dimension must be
2” to 2-1/16”.
Figure 11A
