Antenna Attachment.

TM 32-5985-343-14&P

and that will not interfere with elevator operation. The

tower faces B and C, in tower section No. 4, about 3 feet

person who attaches the antenna elements should have

below base of tower adapter.

shear pins (5, figure 2-16) and retaining pins (4, figure 2-

(2) Bolt flooring onto these channels. Flooring

16) ready.

should be either 2by 6-inch fir planks of good quality or

aluminum alloy plates.

(a) Use a 20-foot ladder and tower leg

ladders to reach antenna.

d. Antenna Attachment.

(b) Raise elevator assembly high enough so

that one or more antenna elements can be attached by

CAUTION

persons standing on tower leg ladders.

When antenna is assembled, be sure

that

side

without

protruding

necessary to complete antenna assembly.

elements will face tower after

(d) Use tower adapter winch to raise

antenna is attached to carriage.

antenna elements to persons on tower legs ladders.

(1) The antenna to be mounted is of the

(8) Raise elevator assembly. Follow procedure

AN/GSA131(V) series. Refer to TM 32-5985-201-15 for

given in paragraph b, steps (2) and (3), above.

the assembly of this antenna and of the mast. As TM

(9) Install antenna installation platform (paragraph

32-5985-201-15 states, before it can be installed, the

c, above) to reduce hazards and other problems in

antenna must be built with elements protruding from

unbolting antenna carriage.

three sides. The side that does not have protruding

(10) Wrap two loops of cable of tower adapter

elements must be the side that faces the tower when the

winch around antenna.

antenna is mounted onto the elevator.

(11) Crank winch to move antenna onto adapter.

Secure antenna.

WARNING

(12) Remove winch cable from antenna, roll

Test elevator and carriage for proper

carriage into position on elevator assembly, and lower

operation and for alignment before

elevator. Elevator assembly should be removed now.

beginning to attach antenna.

See paragraph 2-18 for procedures.

sure that crank axis of tower adapter

(13) Attach transmission lines to one tower leg

winch is parallel to tower face A.

and position cable to another tower leg. Connect

Then the winch can move the

transmission lines to antenna and control cable to

antenna carriage as it rides on tower

positioner.

adapter tracks.

2-18 REMOVAL OF ELEVATOR ASSEMBLY.

(2) Perform the elevator and carriage tests

Remove elevator assembly by procedures below. Item

described in paragraph b, above. Check orientation of

numbers refer to figure 2-9, unless otherwise indicated.

winch.

(3) Attach antenna positioner to antenna carriage

WARNING

as shown in figure 2-18. Secure with three bolts (2),

The bottom rollers of the elevator

nuts (3), and lockwashers (4).

assembly must always be at least 6

(4) Raise antenna into position for mounting by

inches from the bottom ends of

the procedure given in TM 32-5985-201-15.

lowest track section.

(5) Before setting antenna down, be sure that the

three holes in platform of antenna carriage properly

CAUTION

align with holes in positioner flange. If not, correct

Before raising or lowering load with

alignment.

elevator

hoist,

always

operate

controls momentarily to eliminate all

(a) For type 1 antennas, remove positioner

slack in cable.

Otherwise shock

access cover and manually propel drive belt until holes

loading may result which can cause

align.

damage to hoist or rigging.

(b) For type 2 antennas, loosen locking

screw. Manually turn pedestal to align holes and relock.

a. Lower elevator assembly.

(6) Lower antenna mast onto pedestal. Secure

b. With elevator hoist, raise elevator assembly

with proper attaching hardware.

above tower section No. 1.

(7) Before raising the elevator assembly, attach

the remaining antenna elements that can be attached

2-33