ARCHIVED REPORTS XR0007814 - Laserfiche WebLink

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YI 533 Replace the stand and anchors and secure to the concrete pad Install the 314' eyebolts loosely as shown by the drawing Fasten the tank to the concrete pad with the required cable (make sure the cable sheath Is on the cable and located around the lug locations) as shown by the assembly drawing utilizing the cable thimbles and clamps provided Tension the cable afore filling the tank to remove cable looseness Do not over-tension the cables as this may cause tank damage The cable tension will change with tank loading and temperature changes -DO NOT re-tension the cables 54 STEEL LADDERS 541 Steel ladders are designed In accordance with OSHA 1910 27 and are to be mounted next to the tank on a concrete pad at the same elevation as the bottom of the tank The concrete pad area that the ladder mounts to must be of sufficient size as to comply with OSHA standards regarding proper access to and from the ladder This should be determined by the construction site engineer based on the specific application The pad must be of sufficient size to allow proper attachment of 114"anchor bolts (check with anchor bolt manufacturer for embedment and edge distance required) The ladder mounting system is designed to allow for tank expansion and contraction due to temperature and loading changes Using the assembly drawing and table shown in Figure 5 4, verify that all parts are present and assemble accordingly NOTE. This ladder is provided for tank inspection only At no time should the operator step off this ladder onto the tank unless stepping onto an approved work platform with guard rails or utilizing some other approved safety device Proper safety equipment (i e guard rails,safety harness, etc) must be used to step onto the tank Consult applicable regulations to determine proper equipment for other than inspection work 542 Attach the two pivoting attachment arms to the ladder using 1 ea 1/2"-13 x 2" hex head bolt and 2 ea . 1/2" -13 hex nuts Double nut each bolt by tightening the first nut to 85 ft -lbs of torque and then jamming the second nut to the first nut by holding the first nut and tightening the second to 85 ft -lbs of torque Position the ladder on the tank and attach the top pivoting attachment arms to the tank with the ladder attachment tube and cotter pin provided (see Figure 5 4) Position the ladder parallel with the side of the tank and mark the 1/4"anchor bolt locations Install appropriate 114"anchor bolts and attach the bottom of the ladder to the concrete pad Anchor bolts are not provided by the manufacturer and must be purchased by the customer. 55 STEEL LADDER CAGES I 551 Using the assembly drawing shown in Figure 5 5 and the instructions in section 5 5 2,verify that all parts are present and assemble accordingly These cages are designed for use only with the Sli steel ladder design Cages are required for ladders used to ascend to heights exceeding 20 ft NOTE Assembly is easier if the cages are installed on the ladder before the ladder installation to the tank 552 Install the cages loosely using the u-bolts provided starting with the top cage unit(4 ft unit with a larger bolt pattern) The bottom cage unit must have a larger diameter at the bottom than at the top of the unit and the bottom edge of the unit be located a minimum of 7 feet and a maximum of 8 feet above the ground When the cage units have been properly located and spaced evenly, tighten the u-bolts securely 21