TM 11-5826-225-35
(13) Remove two screws (91) and remove
(2) Remove three screws (5) and three
a m m e t e r (90) from front subpanel
l o c k w a s h e r s (6) securing retaining
assembly (88).
plate (8) to frame (136).
b. Removal of Attenuator. (R301).
(3) Remove fixed resistor (12) from re-
(1) Loosen two Dzus fasteners (1) located
taining plate (8) by removing screw
on rear cover (2), and slide the rear
(7).
cover (2) off the control unit.
(4) Remove four screws (20) and nuts
(2) Loosen two setscrews (161), and re-
(17) securing connector (21) to re-
move crown gear (162) from the shaft
taining plate (8).
on the variable attenuator (166).
(5) Remove the retaining plate (8).
(3) Remove nut (163) and lockwasher
(6) Loosen setscrews (71) and (75) on
(164), and remove variable attenuator
collars (72) and (76), respectively.
(166).
(7) Pull out stop hub assembly (57), along
c. Removal of Function Switch (S302).
with five stop washers (59, 61, 63, 65,
(1) Remove the front panel as described
and 67) and five flat washers (58,60,
in a above.
62, 64, and 66), from the rear of
frame (136).
(2) R e m o v e the attenuator, R301 (b
above).
(8) Remove two collars (72 and 76), flat
washer (70), and worm gear (73).
(3) Remove retaining ring (141) from the
(9) Loosen two setscrews (44) in collar
shaft of spur gear assembly (146).
(45) and remove spur gear (43) from
(4) Remove spur gear assembly (146)
shaft of helical gear assembly (52).
from frame (136).
( l o ) Loosen two setscrews (53) in collar
(5) R e m o v e s p r i n g ( 1 2 6 ) f r o m t h e
( 5 4 ) and remove spur gear (120)
grooved pin on frame (136).
from shaft of helical gear assembly
(6) Remove detent follower (125) from
(52).
the detent holder on frame (136).
(11) Remove washers (117, 118, and 119).
(7) Remove switch detent (124) from the
The number of washers (117) may be
front of frame (136).
more or less than shown. Record the
(8) Remove two screws (142), two lock-
number for reassembly.
washers (143), two nonmetallic
(12) Remove helical gear assembly (52)
washers (144), switch section (140),
from frame (136).
two spacers (137), switch section
(139); and two more spacers (138).
f. Removal of Tuning Synchro (B301).
d, Removal of LOOP switch (S303).
(1) Loosen two Dxus fasteners (1) lo-
(1) Remove the front panel (a above).
cated on rear cover (2), and slide the
(2) R e m o v e the attenuator (R301) (b
rear cover (2) off the control unit.
above),
(2) Remove three screws (5) and three
lockwashers (6) securing retaining
(3) Remove nut (130) and lockwasher
plate (8) to frame (136).
(129) from rotary switch (151).
(3) Remove fixed resistor (12) from re-
(-4) R e m o v e rotary switch (151) from
taining plate (8) by removing screw
frame (136).
(7).
(5) Remove two nuts (160), two lock-
(4) Remove four screws (20) and nuts
w a s h e r s (159), t w o flat washers
(17) securing connector (21) to the
(158), and terminal board (157) from
retaining plate (8),
rotary switch (151).
(5) Remove the retaining plate (8).
e. Removal of Tuning Gear Train.
(6) Loosen two setscrews (1) on collar
(1) Remove the front panel (a above).
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