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--------------------- --- ------— _ — ----------------- ----- Prefabricated Deadmen Installation Instructions For Fiberglass Underground Storage Tanks and OilM/ater Separators 1.GENERAL 1.1.These instructions supplement the Anchoring Tanks section of the These anchor points protrude up through the slots in the deadmen and are Xerxes Installation Manual and Operating Guidelines(subsequently temporarily supported with cotter pins.(See FIGURE2.2.) a referred to as"Installation Manual').They apply to pre-engineered, Chain or Sling / 60,to 90° prefabricated deadmen supplied by Xerxes. Anchor point _ Anchor point 1.2.It is important to follow the procedures and instructions in the Alignment slot Alignment slot Installation Manual in order to safely and properly install a Xerxes underground storage tank and accessories.Failure to follow those 1� instructions may void the tank warranty and cause tank failure,death, serious personal injury or property damage. 1.3.Deadmen help anchor tanks in installations in which there is potential FIGURE 2.2 for a high water table or trapped water. 2.3.2.Use only one strap per anchor point. 1.4.Deadmen come in various lengths.Generally,there are 1 to 4 deadman 2,3.3.Align the anchor paints with the hold-down strap locations on the sections per side of the tank,with both sides having an equal number, tank(marked by arrowhead IN -4 symbols).SeeAnchoring Tanks section 2,ANCHORING TANKS of the Installation Manual. 2.1.Xerxes Prefabricated Deadmen 2.3.4.When using deadmen in man-out-of-hole strapping applications, - 2.1.1.Xerxes-supplied prefabricated deadmen are pre-engineered and align the anchor points with the proper ribs before setting the deadmen in sized to the tank ordered and include galvanized adjustable anchor points the hole. (subsequently referred to as"anchor points").As with any deadman, 2.3.5.Care should be taken to keep backfill from entering the alignment water-table height,number of attached collar risers and burial depth must slots until Final adjustment is made.Placing something(for example,a be considered in sizing the deadman system. piece of wood)over the slots during backfill placement may help keep 2.2.Placement of deadmen backfill from entering the alignment slots. = 2,2,1.The minimum spacing between tanks must be increased as needed 2.4.Installation of deadmen to accommodate deadmen. 2.4.1.The top of the deadmen should be aligned to the bottom of the tank. 2.2.2.Always provide sufficient clearance to allow the deadmen to be set 2,4.2•The deadmen are typically placed directly on the excavation floor. outside of the lank"shadow."See Tank Spacing subsection in the 2.4.3.If Xerxes 18-inch wide low-profile deadmen are used as a E` Excavation Parameters section of the Installation Manual.(See FIGURE 2-1.) construction guide,they may need to be elevated.This can be accomplished by putting 3-112 inch of backfill or a wood 44(or equivalent)undemeath,so that the top of the deadmen are 12 inches off of the bottom of the excavation.(See FIGURE 2-3.) (_ i` Hold-dowh strap 2.4.4.Make sure the anchor points are positioned correctly. i9l E 'Al 2.4.5.Some contractors use the deadmen as a guide for proper depth of I Tank bedding.(Note that low-profile deadmen are not 12 inches high.) + _Turrhuckle ' - 18"-wide low-profile deadmen _ Backfill 44 f II, r � s i _ ♦ f �. r Anctro r t point 11II pI _f- 4 . TSlotted —Ill�l lll�l t ,l,l. I Ii9lj�!�I --�III,�� I deadman ~ FIGURE 2.3 FIGURE 2-1 2.2.3.When multiple sections are used,the deadmen are to be butted 3.OPTIONAL TURNBUCKLES ; together end-to-end on each side of the tank. 3.1.General f 3.1.1.Xerxes also offers a turnbuckle(See FIGURE 3-1.)that will connect WARNING the deadman anchor point to the Xerxes FRP hold-down strap.When the deadman is properly positioned,this will eliminate the use of cables and Only use the anchor points when lifting and positioning the cable clamps.See Hold-down Straps subsection in the Anchoring Tanks = deadmen.A spreader bar may be required to lift longer sections of section of the Installation Manual for more detail.(Also see FIGURE 2-1) deadmen.Use guy ropes to guide the deadmen when lifting.Failure to do so could result in death or serious injury. 2.3.Positioning of anchor points 2.3.1.Xerxes deadmen are supplied with 314-inch-diameter anchor points. FIGURE 3.1 XERXE1� CORPORATION 7901 Xerxes Avenue South, Minneapolis, MN 55431-1288 ■ (952)887-1890 ■ Fax(952)887-1882 ■ www.xerxescorp.com O 2004 Xerxes Corporation xpd04/051h