TM 11-5840-281-35/1
(7) Install covers over open elevation
antenna drive waveguides.
NOTE
NOTE
Preformed packing should be left on open
receiver-transmitter group wave- guide when
Preformed packing should be left on open
covers are installed.
elevation antenna drive waveguide before covers
are installed.
(5) Remove six screws (79), lockwashers
(80), and flat washers (81) holding three retaining straps
b. Replacement. To replace elevation Antenna
(82).
(6) Remove receiver-transmitter group (83)
Drive TG-114/TPN-8, proceed as follows:
from pedestal (84).
(1) Place elevation antenna drive (69) on
receiver-transmitter group and secure in place using
b. Replacement. To replace the receiver-
three screws (65), three screws (66), six lockwashers
transmitter group, proceed as follows:
(67), and six flat washers (68).
(1) Position receiver-transmitter group (83)
(2) Release waveguide couplers on
on pedestal (84) and secure in place using six screws
elevation rotary couplers and remove covers.
(79), lockwashers (80), flat washers (81), and three
retaining straps (82).
NOTE
(2) Release waveguide couplers on
receiver- transmitter group waveguide and remove
Preformed packing should be left in place on the
covers.
open waveguide when the covers are removed.
NOTE
(3) Attach elevation rotary couplers to
wave- guide from receiver-transmitter group with
Preformed packing should be left in place on the
waveguide couplers.
open waveguide when the covers are removed.
(4) Connect connector P501 from cable
assembly W3503 (64) to connector J501 on elevation
(3) Attach two waveguides (78) in place on
antenna drive.
receiver-transmitter group waveguide using waveguide
(5) Connect connector P106 from cable
couplers.
assembly W3503 (64) to connector J106 on receiver-
(4) Attach waveguide (76) and preformed
transmitter group.
packing (77) to waveguide (78) using four screws (74)
and lockwashers (75).
NOTE
(5) Attach waveguide (72) and preformed
packing (73) to waveguide (78) using four screws (70)
If the elevation antenna drive just replaced is
and lockwashers (71).
new to the radar set group, it will require
complete electrical and mechanical alignment.
3-58.
Removal
and
Replacement
of
Radar
3-57. Removal and Replacement of Receiver-
Transmitter
(fig. 344)
Transmitter Group
(fig. 343)
a.
Removal To remove radar transmitter,
proceed as follows:
a. Removal. To remove the receiver-transmitter
(1) Unlatch six rim latches MP104 retaining
group, proceed as follows:
receiver-transmitter cover MP119 and remove cover.
(1) Remove four screws (70), lockwashers
(2) Unfasten two fasteners on drive motor
(71), waveguide (72), and preformed packing (73).
amplifier A9000 and swing hinged chassis out to gain
(2) Remove four screws (74), lockwashers
access to radar transmitter A200 waveguide.
(75), waveguide (76), and preformed packing (77).
(3) Unfasten waveguide coupling MP114 to
(3) Release waveguide couplers holding
release radar transmitter flexible waveguide W202 (fig.
two waveguides (78 )and remove two waveguide
sections.
(4) Disconnect connector P201 from radar
(4) Install covers over open receiver-
transmitter.
transmitter group waveguide.
3-60
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