TM 11-6625-2709-40
3-4. Replacement, Reassembly, and Lubrication
(5) Repeat step (4) above to tighten setscrew
(14).
Techniques for Radio Test Set TS-2500B/ARM-
92.
(6) Replace idler gear (16).
a. Replacement of TO-FROM meter.
(7) Replace dial (12) and retainer (10).
(1) Place meter back in front panel.
(8) Push needle (11) straight on the shaft of
synchro B1 (21) until it is properly in place. Align the
(2) Replace the four nuts, to hold meter to front
panel.
(9) Replace shaft sleeve (6). Lubricate inside of
(3) Connect the two wires to their proper ter-
shaft sleeve (6) with Dow Corning Stopcock grease.
minal on meter.
Replace drive gear (7).
(4) Replace test set front panel (step (4) below).
(10) Replace spring washer (4). Replace knob (1)
and tighten two setscrews (2, 3).
b. Replacement of Deviation Meter.
(11) Replace front cover (5) to synchro housing
(1) Place meter back in front panel.
(17).
(2) Replace the four nuts, to hold meter to front
Note: If dial window (9) has been removed, replace the window
by very carefully pushing it back into the front cover (5) before
panel.
replacing the front cover.
(3) Connect the two wires to their proper ter-
(12) Replace gasket (22) to rear housing (23).
minal on meter.
(13) Replace front cover (5) to rear housing (23).
(4) Replace test set front panel (step (4) above).
eight screws (25).
c. Rekplacement of FLAG Meter.
(15) Replace gasket (27).
(1) Place meter back in front panel.
(16) Solder leads to proper points on connector
(2) Replace the four nuts, to hold meter to front
P1 (28).
panel.
(3) Connect the two wires to their proper ter-
four screws (30).
minals on meter.
e. Replacement
of
COMPASS
SIMULATOR
In-
(4) Replace test set front panel (step (4) above).
dicator.
(1) Connect P1 to COMPASS SIMULATOR in-
d. Reassembly of COMPASS SIMULATOR In-
dicator.
(2) Replace COMPASS SIMULATOR indicator
(1) Replace synchro B1 (21) to synchro housing
in front panel.
(17).
(3) Replace the three screws and nuts, to hold
(2) Replace three synchro clamps (18), three
COMPASS SIMULATOR indicator to front panel.
lockwashers (19), and three screws (20).
(4) Replace test set front panel (step (1) below).
(3) Replace synchro gear (13).
f. Reassembly and Lubrication of RMI. Refer to TM
(4) Rotate synchro gear (13) until setscrew (15)
1 1 - 5 8 2 6 - 2 1 1 - 5 0 for reassembly and lubrication
lines up with hole in smaller rim of synchro housing
procedures for RMI Indicator ID-250A/ARN.
(17). Tighten this setscrew.