ETS-Lindgren 2071B Antenna Positioning Tower (Archived) - Manual (Page 37)

Assembly Instructions | 37
Air Polarization Assembly
The automated air polarization assembly includes variable speed polarization cycling using flow control valves. The air cylinder is
made of non-conductive material and will polarize the largest antenna recommended for the tower. The polarization speed range
is 3 o to 30 o per second.
An air supply of 414-551 kPa (60-80 psi) is needed for this feature. It is important to have clean and dry air; so we recommend the
use of a 40 micron filter in close proximity to the motor base.
Ten meters of UV stabilized air hose is included as well as a 1/8 inch NPT fitting. A metric fitting for a 4 mm tube may be supplied
by the customer.
To connect the air line to the motor base, simply push the hose provided onto the fitting on the front of the motor base. The air
supply pressure should be 414-551 kPa (60-80 psi). The air cylinder uses a special O-ring lubricant; during maintenance this
lubricant should be applied to prevent excessive wear of the O-rings.
Archived 06/24/14