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T&O Regional Engineering <br />i <br />s- •W411 M- IN 114 <br />LAST External Insp.,tion Checklist <br />6.3 <br />S`AifiWAY AN c. LADDERS <br />E OK <br />I NA I Comments: <br />Check for any uneven or irregular spacing of <br />Dries the top of the primary shot" extend t•. <br />i <br />stair treads or ladder rung s. <br />21' or more vertically above the liquid? 1 <br />Are the rim seals free of holes, tearsor <br />Record average dimensions of stair treads and <br />1 <br />ether ooeninas throe 2h the seal? <br />ladder rungs, <br />� «f" 4 C, t rjej <br />3 <br />j Inspect stair treads or ladder rungs for <br />i corrosion, • aint failure and ;geld failure. <br />j 4 <br />Inspect stringers for corrosion, paint failure, and <br />I( <br />veld failure. Inspect attachment of treads/ rungs <br />to stringer. <br />.-z Fig ra <br />5 <br />Iris, eat support-to-sihell welds and reinforcing <br />` <br />I <br />ads. <br />f <br />f 6 <br />( <br />Inspect stringer attachment to Concrete base, if <br />FEB 2 5 <br />any. <br />6.4 <br />Row -NG <br />LAooEr, <br />E OK <br />I NA ' Comments: <br />1 <br />Inspect rollinc ladder stringers, <br />i 1 <br />i t .'MENTAI <br />Identify type of fad -der treads (square bar, round <br />tsar. treads self leveling treads), <br />3 1 <br />Check for wear and corosion where rolling <br />1 <br />i <br />1 <br />ladder attaches to gauging platform: i <br />4 <br />Inspect Pivot bar for wear and integrity. <br />j 5 ' <br />. €spe.ct operation of self -leveling stairway <br />II <br />treads. <br />5 <br />Inspect rolling ladder wh=eels for freedom of <br />/movement flat S ots, and wear on axle. <br />4 I <br />t <br />? <br />Inspect alignment of r olling ladder with track on <br />the floating roof. <br />I <br />8 <br />Inspect top surface of rolling ladder track for <br />I <br />wear by wheels. Record the length of unworn <br />1 <br />track at each end or the track. <br />� I <br />9 <br />If the rolling !adder track extends to within 5 ft <br />1 <br />of the edge of the roof on the far side, is there a <br />` <br />handrail on the too cf the shell on that side? <br />10 j <br />Are static bond cables present, in goat~ <br />i <br />condition, and properly secured to the roiling <br />I <br />ladder, tank and foating roof? <br />j <br />Rim Seal Ga Measurements U.S. fair, Rules -Regulated Tanks ONLY) <br />(Insert additional rows if necessary) <br />SECONDARY SEAL <br />Gap Length aximum Gap Width <br />L int. ( Wm in. <br />1 <br />i <br />i <br />j <br />1 <br />Gap Length Maximum Gap Width <br />L (in.) VVI (in.) <br />Rina Seal Condition 1 No <br />Yes <br />Comment If No <br />Does the bottorn of the (primary) shoe 1 <br />extend into the liquid? <br />Dries the top of the primary shot" extend t•. <br />21' or more vertically above the liquid? 1 <br />Are the rim seals free of holes, tearsor <br />ether ooeninas throe 2h the seal? <br />Revision mate: Oct2033 Page 8 of 9 <br />