12-12-1988 Council Packet - Laserfiche WebLink

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SHEET D-1766 (Replaces 0-1343) August 1, 1980 .I These nuts will prevent the terminals of the rotator and the rotor wir- from shorting on the rotor plate. An 8" piece of tubing is furnished with each tower. It can be installed into the clam ("Y" clamp and "L" shaped brackets furnished for offset rotor installation only) for the offset type rotors. It is necessary to reverse the clamp assembiy (to face outside of the tower), opposite that of installing a standard mast tv the rotor plate. Some rotators can be mounted directly to the "L" shaped bracket as shown or to the 8' mast as previously described. Also, some rotators mount beneath the rotor plate (as pictured). It will be necessary to increase the 1/4• holes in the rotor plate to 3/8" holes to use the 3/8" bolts furnished with these rotators. See pictorial views of typical rotor in- stallations: 1 n44 CROWN ROTOR CROWN ROTOR In ail cases be careful during it :allation. CDR "BIELL' ROTOR EX SERIES TOWER ALLIANCE ROTOR Mr -GAIN 400 ROTOR The EX Series Tower is made up from a basic package of one BXiA section and one BX2 section. To make an EX3, EX4, or EX5 tower, straight sections in the 8X1 (BXSI) and BX2 (8XS2) dimensions are interposed between the standard sections. The part number indicates the number of B' sections within that particular package. (Example: EX2 is two 8' sections of tower or 16' and an EX4 is four 8' sections of tower or ;21.) There is also furnished with eat- '.X tower, one 8' x 1-1/4" mast pole and one base plate with three drive rods to be driven through the holes provided. m.,oroximately 4" of the drive rods should be left above the top of the plate. These rods prevent the base of the tower fm, shifting sideways only. Also furnished is one EXHi adjustable house bracket. Do not attempt to climb tower unti house bracket has been installed. Not more than 16' (two sections) of tower should be extended above the house bracket without necess*tating guying. Should it be desired to put this installation on a roof top, the EXR1 roof mount is available. This bracket 1s formed to a peaked or hip roof; however, by straightening out the flanges of the bracket, it can be placed on a flat roof. After the roof mount is set, the standard base plate of the EX Series (EX81) is bolted to the hinged part of the roof mount. The tower is then assembled as in other normal installations. For roof installations, the tower should be guyed at least each 16' (no guy wire furnished). This is a protection to the roof, as well as the tower. When assemblying the tower, two legs should be started and the third leg slid into place with the aid of a screw driver as the two sections are of the same dimensions. One cross brace on the BX1A top section is purposely left off to give easy access to the rotor plate for installing the mast or rotor. (Note: Only one person should be on the tower at one time.) For mast and rotAOor instructions. follow instructions for 8X Tcwer. IMPORTANT NOTE: The following procedure should be observed on all bolts used to join sections. Insert bolt through hoe provided rovided in tower sections, place star washer and then run nut up securely. This method results in maximum strength. NOTES FOR BX AND EX SERIES TOWER . . . Do not install towers near power lines. All towers should be installed out of falling distance of pore. lines since every electrical and telephone wire should be considered dangerous. Unarco-Rohn recommei anti -climb sections on all towers to prevent unauthorized persons from climbing towers. All antenna Instal laticns must be grouned per local or national codes. All towers should be installed by experienced and trained personnel. All types of antenna installations Should be thoroughly int.pected by Qualified personnel at least twice a year and relmarted with hazard and warning i&t*)S to insure safety and proper performance.