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. , <br />5. Apply a non -hardening, UL classified, <br />gasoline -resistant pipe sealing compound to <br />the riser pipe threads. <br />rj�t-WARNING IFailure to use a proper <br />thread sealing compound could result in a <br />lack of seal where the riser threads into the <br />tank opening, making it impossible to perform <br />a tank -tightness test. This may also create a <br />potential site for fuel to leak into the <br />environment and/or the containment sump. <br />Slide riser over the PMA and tighten into <br />manifold threads. Maximum riser size is <br />found by taking the grade to tank mounting <br />thread measurement and subtracting the <br />manifold height and clearance (6" clearance <br />recommended). <br />Example: <br />Grade to tank mounting threads (bury depth) 48" <br />Minus manifold height without leak detector -11" <br />(w/leak detector height = 12.50) <br />Minus 6" for top clearance -6 <br />(2" minimum) <br />= Maximum riser size 31" <br />Length Setting <br />6. Cut wire tie(s) securing the conduit wire at the <br />top of the pump; lay the wires out above the <br />pump head so that wires can feed through <br />conduit freely when setting length. <br />WARNING Failure to cut wire ties <br />prior to setting pump length could result in <br />damage to electrical conduit wires, <br />presenting a risk of lethal electrical shock or <br />equipment failure. <br />7 a.) Measure from the bottom of the tank to <br />the top of tank mounting threads. Subtract <br />the distance for clearance between the PMA <br />and the bottom of the tank (6" <br />recommended). This is the length the pump <br />should be extracted to, from the bottom of the <br />riser threads to the bottom of the motor end <br />bell. Note: 6" clearance provides a 5" <br />clearance from the pump motor end bell to <br />the bottom of the tank. <br />Example: <br />Tank + thread measurement 96" <br />distance from bottom (5") + riser thread <br />engagement (1") -6" <br />= Length (bottom of riser to end bell) 90" <br />F <br />v <br />Riser material required for pump is <br />4.5" outside diameter with a .188" <br />wall. Minimum riser length supplied <br />by FE Petro is 7". <br />STEP 6. <br />STEP 7a.) <br />V <br />