TM 11-5826-225-3S
(2) Carefully slide rear cover (2) over
k n o b (97) in addition to the gap
the rear of the control unit.
caused by flat washer (96).
(18) Tighten two setscrews (96).
(3) Secure rear cover (2) to the control
(19) Place loop knob (99) on its shaft and
unit by tightening two Dzus fasteners
align loop knob (99) so it is in a
(l).
vertical position.
(20) Tighten two setscrews (100).
3-7. Periodic lubrication
k. Replacement of Rear Cover.
No periodic lubrication is required between
(1) Perform alignment procedures con-
disassembly intervals.
ALIGNMENT
Section II.
(2) Headset HS-33, or equivalent.
3 - 8 . General
(3) Stopwatch.
Alignment and adjustment procedures for Radio
(4) RF balance teat jig (fig. 8-4), con-
Receiver R-1391/ARN-83 are given in paragraphs
sisting of the following:
3-10 through 3-20. Voltage and frequency adjust-
(a) Connector, Bendix PTOGA-10-6S
ment for Inverter, Power, Static CV-2128/ARN-83
(PI).
(b) Two connectors, UG-912A/U (P2
for Direction Finder Control C-6899/ARN-83 is
P3).
(c) Two resistors, 1/2 watt, 51 ohms,
83 does not require alignment. The test equipment
1 percent, type RN65D51R1F
and additional equipment required for alignment
(Rl, R2).
(d) Two capacitors, 500 volts, 10 f,
3-9. Teat Equipment and Additional Equip
10 percent, type CM05C100K09
ment Required for Alignment
(C1, C2).
a. Test Equipment.
(e) Capacitor, 500 volts, 240 f, 6
percent, type CM05F241J03. (C3).
(1) Test Set, Direction Finder Set AN/
ARM-93.
3-10. Adjustment of Tuning Servo Tach-
two each.
ometer Feedback
(3) Output Meter TS-585/U.
a. Remove the cover from the gear train
assembly of the receiver.
(5) Tuning capacitor test cable (fig. 8-45)
b. Connect the equipment as shown in figure
consisting of the following:
2-2. It is not necessary to connect the signal
(a) Connector (Pi), Cannon DPXE.
45-34P-0201.
c. s e t the switches on the test set as follows:
(b) Connector (P2), Cannon DPX 45
(1) DC POWER switch to ON.
33S.
(c) Wire, #22 AWG, stranded, insu-
(2) R E C E I V E R - C O N T R O L switch to
lated (7 feet),
RECEIVER,
(3) GONIO DRIVE switch to ON.
d. Set the switches on the control unit as
b. Additional Equipment.
follows :
(1) Dc power supply, 27.5 volts.
(1) Function switch to ANT.
Change 5 3-19