ETS-Lindgren 1052 Antenna Tower Positioner - Manual (Page 16)

16 | Assembly Instructions
3. Slide carrier assembly onto lower mast.
• Carefully place the mast and base assembly onto the side.
• Slide the carrier assembly over the lower mast.
• The carrier assembly and boom collar/brackets should face away from the
winch. The long side of the carrier assembly should face upward.