Related Manuals for CUSHCRAFT Big Thunder XM240
Summary of Contents for CUSHCRAFT Big Thunder XM240
- Page 1 ASSEMBLY & INSTALLATION XM240 40 Meter 2 Element Yagi COMMUNICATIONS ANTENNAS 951477 (8/98)
- Page 2 XM240 Thank you for your purchase of the Cushcraft XM240 . This kit is designed and manufactured to give the best performance and trouble free service. The antenna will perform as specified if the instructions are followed during assembly and installation.
- Page 3 XM240 Part No. Description Metric Equivalent Quantity Qty Check XM240EH 1-38” x 42” Aluminum Tube slotted one end, drilled one end ..3.5 x 106.7 cm ____ XM240EJ 3/8” x 42” Aluminum Tube ........9 x 106.7 cm ____ X79FS...
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Page 4: Boom Assembly
XM240 Figure 1A 59-15/16” 12” 71-15/16 ” 12” 71-15/16 ” 12” 59-15/16” (152.2 cm) (30.5 cm) (182.7 cm) (30.5 cm) (182.7 cm) (30.5 cm) (152.2 cm) See Figure 1C Figure 1B 1-Boom Assembly Part # Description Dimensions Lay out boom sections as shown in Figure 1A. Secure the two outer BA XM240BA Aluminum 2-1/2”... - Page 5 XM240 Figure 1C 4 Places 4 Places 4 Places 4 Places 4 Places Part # Description Dimensions 82 010082 1/4-20 x 1” Bolt (2.5 cm) 84 010084 SS Lock 1/4” Washer (0.6 cm) 99 014399 SS Lock 1/4” (.6 cm) 506 324506 Aluminum 8”...
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Page 6: Element Assembly
XM240 2 - Element Assembly Part # Description Dimensions 010011 SS Nut #8-32 Figure 2A and 2B show the steps required for element assembly. Identify the parts required using the Element Subassembly Parts List. Slide EH 290326 Warning sections over fiberglass insulator (567) until #8 screw holes line up (Figure Sticker 2B) . - Page 7 XM240 3 - X-Hat Assembly Figure 3A shows the steps for assembly of the four X-Hats. Identify the parts required using the X-Hat Subassembly Parts List. Two XHR rods attach to each 40 meter coil (LCA). The rods may be mounted in any position relative to the element or boom. Part # Description Dimensions...
- Page 8 XM240 4 - Element to Boom Assembly Figure 4A, 4B and 4C show the steps for element mounting on the XM240 boom. Identify the parts required using the Element to Boom Subassembly Parts List. Attach the two brackets (509) to the boom using the hardware shown. The end of the truss assembly is sh own in Figure 4A but is not to be assembled at this time.
- Page 9 XM240 Figure 5A 1” (2.5 cm) Part # Description Dimensions X79FS 41 011941 SS Lock Washer 82 010082 SS Hex 1/4-20 x 1” Bolt (.6 x 2.5 cm) 84 010084 SS Lock 1/4” Washer (.6 cm) 85 010085 SS Nut 1/4-20 (.6 cm) 87 014387...
- Page 10 XM240 Leave 3’ (91 cm) of mast above the antenna to accommodate truss assembly. Figure 6A Part # Description Dimensions 6-Boom to Mast Clamp 35 170035 Aluminum 2-1/2” V-Block (6.3 cm) Assembly 207 010207 SS Flat 3/8” Washer (.95 cm) The antenna is now ready to be mounted to the mast.
- Page 11 XM240 7 - Boom Truss Assembly Figure 9 illustrates the boom truss assembly. Refer to the boom truss assembly parts list for the hardware required. The XM240 uses Phillystran® cable 3209 to guy the boom. The cable is one continuous piece from one boom Figure 7A end to the other.
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Page 12: Specifications
Turning Radius, ft (m) 24 (7.3 COMMUNICATIONS ANTENNAS 48 Perimeter Road, Manchester NH 03103 USA • Telephone: 603-627-7877 • Fax: 603-627-1764 • E-mail: sales@cushcraft.com Web Site: http://www.cushcraft.com • International - Tel: +1-603-627-7877 • Fax:+1-603-627-1764 Limited Warranty Cushcraft Corporation, 48 Perimeter Road, Manchester, New Hampshire 03103, warrants to the original consumer purchaser for one year from date of purchase that each Cushcraft antenna is free of defects in material or workmanship.
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