TM 11-6625-820-45
b. Replacement of Deviation Meter.
(12) Replace gasket (22) to rear housing
(23).
(1) Place the meter back in the front
panel.
(13) Replace front cover (5) to rear hous-
( 2 ) Replace the four nuts to hold the
ing (23).
meter to the front panel.
(14) Replace eight lockwashers (24) and
(3) Connect the two wires to their proper
tighten eight screws (25).
terminal on the meter.
(15) Replace gasket (27).
(4) Replace the test set front panel ( l
above).
(16) Solder the leads to the proper points
on connector P1 (28).
c. Replacement of FLAG Meter.
(1) P l a c e the meter back in the front
(17) Replace four lockwashers (29) and
panel.
tighten four screws (30).
(2) R e p l a c e the four nuts to hold the
e. Replacement of COMPASS SIMULATOR
meter to the front panel.
Indicator.
(3) Connect the two wires to their proper
(1) Connect P1 to the COMPASS SIMU-
terminals on the meter.
LATOR Indicator.
(4) Replace the test set front panel ( l
(2) Replace the COMPASS SIMULATOR
above).
Indicator in the front panel.
d. Reassembly of COMPASS SIMULATOR
(3) Replace the three screws and nuts, to
h o l d the COMPASS SIMULATOR
(1) Replace synchro B1 (21) to synchro
Indicator to the front panel.
housing (17).
(2) Replace three synchro clamps (18),
(4) Replace the test set front panel ( 1
three
lockwashers (19), and three
below) .
screws (20).
f. Reassembly and Lubrication of RMI. R e -
(3) Replace synchro gear (13).
fer to TM 115826-211-50 for reassembly and
(4) R o t a t e synchro gear (13) until the
lubrication procedures for Indicator, Course
setscrew (15) lines up with the hole
ID-250A/ARN.
in the smaller rim of synchro housing
g. Replacement of RMI.
(17). Tighten this setscrew.
(1) Connect P4 to the RMI connector.
(5) Repeat step in (4) above to tighten
(2) Replace the RMI in the front panel.
setscrew (14).
(3) Replace the four screws to hold the
(6) Replace idler gear (16).
RMI to the front panel.
(7) Replace dial (12) and retainer (10).
(4) Replace the test set front panel ( l
(8) Push needle (11) straight on the shaft
below) .
of synchro B1 (21) until it is prop-
erly in place. Align the COMPASS
h. Reassembly and Lubrication of OBS Indi-
SIMULATOR indicator (para 3-10).
cator. Refer to TM 11-5826-226-35 for re-
(9) Replace shaft sleeve (6). Lubricate in-
assembly and lubrication procedures for Indica-
s i d e of shaft sleeve (6) with Dow
tor, Course ID-1347/ARN-82 or ID-1347A/
C o r n i n g Stopcock grease Replace
ARN-82.
drive gear (7).
( l o ) Replace spring washer (4). Replace
i. Replacenwnt of OBS Indicator.
knob (1) and tighten two setscrews
( l ) Connect P6 to the OBS connector.
(2 and 3).
(2) Replace the OBS indicator in the front
(11) Replace front cover (5) to synchro
panel.
housing (17).
(3) Replace the four screws, to hold the
N o t e . If dial window (9) has been re-
OBS indicator to the front panel.
moved, replace the window by very carefully
(4) Replace the test set front panel ( l
pushing it back into the front cover (5) be-
below).
fore replacing the front cover.
C h a n g e 2 3-3
