ETS-Lindgren 2171B Boresight Antenna Tower - Manual (Page 26)

26 | Assembly Instructions
Make sure to orient the carrier and mast as shown in Orientation During Assembly on page 23
S TEP 3 —S
LIDE C ARRIER ONTO (M AIN ) M AST
Place the mast horizontally onto an elevated, stable surface,
such as across two sawhorses.
Carefully slide the carrier onto the mast from the bottom of
the mast. Orient the carrier so that when the mast is inserted
into the base:
 The air cylinder is on the same side of the mast as the
fiber optic connectors; and
 When the mast is upright, the air cylinder will point
downward.