DB 18 & DB 18E Options

Transcription

1 DB 8 & DB 8E Options Assembly Manual Boom Truss Element Truss 6m Passive

2 Inventory check DB 8 & DB 8 E Boom Truss Kit QTY Part # Description /6 wire clips /6 Thimble Phillystran cap black /4 X 0 boom Mast (located in sweep box) Truss attachment plate /4 Aluminum saddle Aluminum spacer /6 X 4 / SS hex bolt /6 Nylock nut SS Turnbuckle /6 X /4 SS hex bolt /6 SS washer Phillystran 00i Phillystran 00i /8/00 : Rev i

3 9' Element Truss Kit DB8 and DB 8E ( kits per antenna) Inventory QTY check Part # Description /4 Solid Saddles /6 x Stainless Eye Bolts Stainless Turnbuckles /4 Stainless Rings /4-0 x /4 Hex Bolt /4-0 Nylock Nut /6 x / Hex Bolt /6 Nylock Nuts /6 Washers Nylock Nuts Dacron Rope with Crimped Loops Dacron Rope with Crimped Loop Anti Seize packet Electrical Tape 60-0 Set Screw ii

4 Inventory check 9' Element Truss Kit DB 8E Driven element ONLY QTY Part # Description /4 Solid Saddles /6 x Stainless Eye Bolts Stainless Turnbuckles /4 Stainless Rings /4-0 x /4 Hex Bolt /4-0 Nylock Nut /6 x / Hex Bolt /6 Nylock Nuts /6 Washers Nylock Nuts Dacron Rope with Crimped Loops Dacron Rope with Crimped Loop Anti Seize packet Electrical Tape 60-0 Set Screw /6 ID X /4 OD X Spacer /4 X 0 Trust Mast Support iii

5 MOUNTING BOOM TRUSS MAST Locate boom mast and boom truss kit QTY DB 8 & DB 8 E Boom Truss Kit Follow Figure for mounting the boom truss mast Make sure the holes in the mast pole are located ontop and are oriented as in Figure. Secure the msat to the mast plate using the saddles and spacers. Figure Mounting Boom Mast QTY :.75 X 0 Boom truss mast note: The positions of the holes must be as shown. The lower set of holes is for the boom truss. The upper holes are for the element truss QTY 4: 5/6 Nylock nut BOOM WITHOUT ELEMENTS QTY 4:.75 Aluminum saddle QTY 4: 5/6 X 4 / SS Hex bolt QTY 4: Aluminum spacer 0-6-0

6 BOOM TRUSS ASSEMBLY PROCEDURE Boom Truss Assembly Locate the two different lengths of Phillystran, 00 and 85, these will be used to assemble the boom truss. Assemble the truss supports as per Figure The truss supports are different lengths by design. The Reflector side of the boom truss will be longer at 80 once assembled. The Director and Driven side of the boom truss will be 68 once assembled. Figure Truss Assembly QTY : 4 SS turnbuckle Order of Assembly QTY 4: /6 Thimble QTY : Truss Attachment Plate (already attached to your boom) Order of Assembly Order of Assembly 4 QTY 4: Phillystran cap black QTY 6: /6 Wire Clip Order of Assembly 4 NOTES: Be sure to install the thimble in the eye of the turnbuckle and or truss attachment plate before securing the wire clips to the Phillystran. The thimbles may need to be spread apart in order to fit in the turnbuckle eye and or truss attachment plate. Once you have crimped the Phillystran with the wire clips it will permanently crush the outer vinyl covering of the Phillystran. Use CAUTION when measuring and securing wire clips. The number one wire clip should be installed as close as possible to the thimble. Wire clips -4 should have a spacing. Cut extra Phillystran leaving a end past wire clip number four. Install the Phillystran black end caps and secure with electrical tape after cutting. IMPORTANT: install wire clips so that the U bolt is on the loose end side of the Phillystran. The saddle of the wire clip will be on the long side of the Phillystran. Re tighten the wire clips after waiting at least 0 minutes. The vinyl jacket flows to quite a large degree causing the wire clips to loosen. The Reflector side of the truss should measure 80 from thimble to thimble. Director & Driven Refelector The Driven and Director side of the truss should measure 68 from thimble to thimble. The trusses should level the boom with the turnbuckles having half of the threads still available to adjust up or down. This will allow you to do minor adjustments.

7 ATTACHING TRUSS TO MAST Notes: Shown in Figure A is the assembly for attaching the boom truss to the mast. Once the truss is secured to the mast the turnbuckles can be adjusted for small adjustments. Make sure to lock the turnbuckles inplace with the locking nut and or a wire to prevent the turnbuckle from turning. With the truss attachement plates already secured to the boom you just need to secure the turnbuckle side of the truss to the mast pole. Assemble the truss to the mast pole as per Figure A This process is much easier with two people one to lift the end of the boom while the other person attaches the turnbuckle to the mast pole. Figure B is showing how to attach the turnbuckles to the mast on a DB8E only. These will be attached first then the dacron rope will be attached to create the element truss. Figure A and Figure B A Mounting the Boom Truss B Mounting trusses to the mast Mounting the Element Truss QTY : 5/6 Nylock nutt QTY : 5/6 X /4 SS Hex bolt QTY : 5/6 Nylock nutt QTY : 5/6 Washer QTY : 5/6 X /4 SS Hex bolt QTY : 4 SS Turnbuckle QTY : 5/6 Washer 60-00

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