TM 11-5840-281-35/1
(5) Remove two knurled screws A200H2
(1) Install hub clamp MP208 and spur gear
retaining radar transmitter and pull entire radar
MP219 on Magnetron V201 tuning shaft. Do not tighten
transmitter out of receiver-transmitter cabinet.
parts at this time.
b. Replacement. To replace radar transmitter,
(2) Install magnetron in radar transmitter
chassis and retain with four flat washers and four bolts.
proceed as follows:
(3) Engage spur gear MP219 with spur gear
(1) Place radar transmitter A200 on
on spur gear shaft MP220 and lock in place with hub
receiver-transmitter cabinet rails and slide into place.
clamp MP208.
Retain radar transmitter with two knurled screws.
(4) Loosen two bushings MP206 on radar
(2) Insert waveguide gasket MP153A into
transmitter chassis and adjust spur gear shaft MP220 for
recess on waveguide MP169 and couple radar
proper mesh of spur gears. Tighten bushings.
transmitter flexible waveguide W202 (fig. 3-45) to
(5) Place waveguide gaskets MP218 and
waveguide MP169 with waveguide coupling MP114.
MP226 between flange on magnetron with four screws.
(3) Connect connector P201 to connector
(6) Connect filament cap XV201 to
J201 (fig. 3-45).
magnetron.
(4) Place receiver-transmitter cover MP119
(7) Install perforated cover MP214 on radar
on receiver-transmitter cabinet and retain with six rim
transmitter chassis and retain with 15 screws.
latches MP104.
(8) Install radar transmitter in receiver-
transmitter cabinet as' outlined in paragraph 3-58b
3-59. Removal and Replacement of Magnetron V201
above.
3-60. Removal and Replacement of Transmitter
a. Removal. To remove magnetron V201,
proceed as follows:
Subassembly No. 1
(1) Remove radar transmitter as outlined in
paragraph 3-58a above.
(2) Remove perforated cover MP214 from
a.
Removal.
To remove transmitter
radar transmitter chassis by removing 15 retaining
subassembly NO. 1, proceed as follows:
screws.
(1) Remove radar transmitter as outlined in
(3) Disconnect filament cap XV201 from
paragraph 3-58a above.
magnetron V201.
(2) Remove perforated cover MP214 from
(4) Loosen screw on hub clamp MP208.
radar transmitter chassis by removing 15 retaining
Disengage spur gear MP219 from spur gear on spur
screws.
gear shaft JP220 by sliding spur gear MP219 along
(3) Disconnect plate cap connector MP213
magnetron tuning shaft.
from modulator tube V202.
(5) While supporting magnetron V201, re-
(4) Release tube clamp MP262 and remove
move four bolts and four flat washers retaining
modulator tube V202.
magnetron and carefully remove magnetron from radar
(5) Remove screw attaching ground strap
transmitter chassis.
MP230 to transmitter subassembly no. 1 MP258.
(6) Remove spur gear MP219 and hub
(6) Remove four screws attaching
clamp MP208 from magnetron tuning shaft. Retain for
transmitter subassembly no. 1 to radar transmitter and
reinstallation.
carefully pull transmitter subassembly no. 1 out of radar
(7) Remove four screws attaching flexible
transmitter chassis.
waveguide W201 to magnetron and remove waveguide
(7) Tag and disconnect wires from terminal
gaskets MP218 and MP226 and assembly of flexible
board TB202 and remove transmitter subassembly no. 1
waveguides W201 and W202 from magnetron. Retain
from radar transmitter chassis.
parts for reinstallation.
(8) Reinstall modulator tube V202 on
b.
Replacement.
To replace magnetron,
transmitter subassembly no. 1.
proceed
as
follows:
3-61
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