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EBW Auto Limiter II Valve Component <br />Inspection Procedure <br />EBW's AutoLimiter II drop tube mounted overfill <br />prevention valve includes an inspection port for <br />periodic inspection of the valve components. With <br />the addition of a small, resealable inspection <br />port though, an inspection of the valve's internal <br />flapper assembly can now also be done. <br />Periodic Auto Limiter Component and <br />Function Inspection <br />Tools Needed <br />• #2 Phillips Screwdriver <br />• Flashlight <br />• EBW Service Kit (Part #90082) <br />• Tape Measure or Dipstick <br />The storage tank may be under <br />Warning pressure. vent the tank prior to <br />removing this drop tube. Highly <br />combustible petroleum vapors <br />are present, so use only non - <br />sparking tools. <br />705 Spill Containment (Ref.) <br />Riser Pipe <br />Bottom of Tank <br />6" Max <br />95% <br />of Riser <br />Figure A <br />1. Remove the fill adapter from the spill containment <br />riser pipe. <br />2. Using a dip stick or tape measure, determine the <br />height of this flange off the bottom of the tank. <br />Record this dimension. <br />10 <br />3. Remove the drop tube/valve assembly from the <br />storage tank fill riser. <br />4. Place the drop tube assembly on a flat surface with <br />the float side of the overfill valve up. <br />5. Lay your tape measure or dipstick next to the <br />drop tube aligning the top flange to the dimension <br />number obtained from Step 2. Locate, on the <br />overfill valve assembly, the machined ring adjacent <br />to the upper float. This ring should be identified <br />with a "95%' stamp. Record the dimension on <br />the dip stick or tape measure that aligns with this <br />"95%" identification ring. This is the second stage <br />shutoff point for this valve installation. This should <br />be set for no more than 95% of tank capacity. <br />Figure B <br />6. From the tank chart for this tank, determine the <br />dimension off of the tank bottom for 95% of tank <br />capacity. Compare this determined dimension to <br />the dimension obtained in Step 5. Your calculated <br />95% capacity dimension should be equal to, or <br />greater than, the actual dimension measured in <br />Step 5. If your calculated dimension is lower, then <br />the installation for this overfill valve is incorrect and <br />needs to be immediately addressed. <br />7. Locate the Phillips head screw on the right side of <br />the float linkage (Figure C). Remove the screw and <br />save it for reinstallation. <br />Figure C <br />