TM 11-5840-281-35/1
(2) Attach two clamps (84) to yoke (89) using
calibration after assembly.
screws (81), lockwashers (82), and flat washers (83).
(3) Install upper pivot (80) on yoke (89) and secure
(21) Assemble spherical nut (27), nut (28), and ball
with pin (79).
joint (30) on arms (31, 32, and 33).
(4) Install lower pivot (78) on yoke (89) and secure
with pin (77).
NOTE
(5) Install pointer (76) on yoke (89) using two
Pins (29) will be installed as part of
screws (73), lockwashers (74), and flat washers (75).
calibration.
(6) Attach actuator bracket (72) to yoke (89) using
four screws (69), lockwashers (70), and flat washers
(22) Loosely attach arms (31, 32, and 33) to
(71).
reflector with spherical nuts (27).
(7) Attach wire rope assembly (55) to pin (57) and
(23) Place horn and polarizer (26) in position and
secure to actuator bracket (72) using screw (52), lock-
attach to arms using screws (16, 19, and 22), lock-
washer (53), and flat washer (54).
washers (17, 20, and 23), and flat washers (18, 21, and
(8) Attach wire rope assembly (55) to retaining clip
24).
(61) and secure to yoke (89) using screw (52), lock-
NOTE
washer (53), and flat washer (54).
Pins (25) will be installed as part of
(9) Attach wire rope assembly (55) to pin (56) and
calibration.
secure to reflector (68) using screw (52), lockwasher
(53), and flat washer (54).
(24) Attach bracket (10) to arm (33) with clamp (5)
(10) Pin clinometer mount (51) to reflector (68) with
using nuts (1), screws (2), lockwashers (3), and flat
two pins (50), secure using three screws (47), lock-
washers (4).
washers (48), and flat washers (49).
(25) Place clamps (11) on waveguide and attach to
(11) Attach dial (66) to reflector (68) using four
bracket (10) using nuts (6), screws (7), lockwashers (8),
nuts (62), screws (63), lockwashers (64), and flat
and flat washers (9).
washers (65).
(26) Attach two clamps (15) to arm (33) using
(12) Attach bracket (42) to reflector (68) using
screws (12), lockwashers (13), and flat washers (14).
screws (38), lockwashers (39), flat washers (40), and flat
(27) Open clamps (15) and route cable from horn
washers (41).
and polarizer through clamps.
(13) Attach scope mount (37) to bracket (42) using
(28) Open clamps (84) and route cable from
screws (34), flat washers (35), and flat washer (36).
actuator through clamps.
(14) Attach guard (46) to reflector (68) using
(29) Refer antenna to higher category of mainten-
screws (43), lockwashers (44), and flat washers (45).
ance for calibration and test.
(15) Install plug (67) on reflector (68).
(16) Position reflector assembly on upper and lower
5-11. Disassembly and Assembly of Elevation Horn
pivots (78 and 80).
and Polarizer
(17) Insert retaining pin (61) into lower pivot (78).
(fig. 57)
(18) Screw nut (59) and rod end (60) on actuator
(58).
a. Disassembly. To disassemble elevation horn and
(19) Position actuator (58) in place between yoke
polarizer, proceed as follows:
assembly and reflector assembly, and secure in place
(1) Loosen waveguide coupling (1), screw (2), pin
using pins (56 and 57).
(3), wire rope assembly (4), cover (5), and preformed
(20) Tighten nut (59) against rod end (60).
packing (6).
(2) Remove six screws (7), lockwashers (8), flat
NOTE
washers (9), waveguide (10), spacers (11), and pre-
If pins (29) and ball joints (30) have
formed packing (12).
been removed from arms (31, 32, and
(3) Remove transition sections from housing.
33) the antenna will require a complete
5-15
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