ETS-Lindgren 2075 MiniMast (Archived) User Manual

Page 11

MODEL 2075 MINIMAST™

Assembly Instructions

REV D – PN 399235

5. Should guying of the mast be required, attach the guy ropes to

the mast pulley section now. Guying is recommended when the
mast is used for the full 4 meter scan height and for outdoor
applications.

6. There are two bolts that when inserted and tightened will

secure the mast into the support structure. Making sure the
holes on the mast and the support structure are aligned, lift and
place the mast into the support. Alternately, the base section
can be placed on its side and the mast inserted at an angle.
Make sure that the mast fully seats into the lower portion of the
mast support. While supporting the mast, install the two mast
bolts and tighten them in place. With the mast erect, the carrier
assembly will be at the bottom of the mast. It should be
oriented so the boom receptacle is to the left of the mast when
you are standing at the rear of the platform.

7. Attached to one end of the boom unit is a cable guide which

reduces stress on the antenna feed cable. The cable guide must
be removed to install the boom. Remove the bolts that hold the
cable guide in place, and set the unit to the side. Slide the end
of the boom that the cable guide was attached to through the
receptacle hole on the carrier so that the cable guide will hang
over the back of the tower when reinstalled. When the center
block reaches the carrier, tighten the two set screws located in
the boom collar on the carrier. These set screws secure the
boom in place. Reinstall the cable guide.

8. If guying is required, attach the free end of the guy ropes at this

time.

9. Check the pneumatic polarization tubes from the motor base to

the double-acting cylinder to insure that all connections are
complete and no air lines are wrapped around the mast.

10. Install the fiber optic cable from the controller. Refer to the

section on “Connecting the Model 2090 Positioning
Controller” for proper connection.

11. Block the carrier boom so that the reference point on the

largest antenna you use will be set at 1 meter. Use a piece of
wood under the carrier to support it at this height.

Archived 3/18/10