[ ]
2
010040
1-1/8” x 8-32 Screw
[ ] 16
010120
8-32 x 2" Screw
[ ] 14
010231
8-32 x 1-3/4" Screw
Step-1. Assemble the boom using the parts listed below:
[ ]
2
Boom Tube, 1-1/2" OD x 48", slotted one end (20-MA6B-BC)
[ ]
1
Boom Tube, 1-1/2" OD x 21", slotted both ends (20-MA6B-BD)
[ ]
1
Boom Tube Insert, 1-3/8" OD x 48" (20-MA6B-BE)
[ ]
4
Worm clamp, 1-1/4" to 1-1/2"
[ ]
1
Boom-to-Mast clamping plate
[ ]
2
5/16-18 x 1-5/8" x 3" U-bolt
[ ]
4
5/16" split lock washer
[ ]
4
5/16-18 Hex nut
[ ]
2
1-1/2" Plastic end cap, for boom
Boom Assembly Stages
Boom Assembly
Boom-to-Mast Clamp Assembly
57"
Reflector End
Driven Element End
60"
1-1/2" Worm Clamp (4)
1-1/2"OD x 48"
1-1/2"OD x 48"
1-1/2" x 21"
1-3/8" x 48"
13-1/2"
13-1/2"
1-3/8" x 48"
1-1/2" x 21"
End cap
End cap
Step-1
Step-2
Step-3
Installation Notes:
Assemble boom tubes as shown above. Install end caps and secure
all worm clamps tightly to prevent the boom sections from rotating out of alignment when
elements are attached. Before installing the mast-to-boom clamp, measure off and mark
the boom at 57" (see below):
