TM 11-4920-292-15
the
T-611/ASN or the DT-309/AJN and the
(5) Remove the quick connector (part No.
top
connector of the turntable assembly. Use
1780949) from the alignment equipment case.
the
rear portion only of the quick connector for
(6) Connect the quick connector between
the
DT-309-AJN.
the T-611/ASN and, the top connector of the
turntable assembly.
a. Check the magnetic bearing at the monitor
T-611/ASN, used in U-1A, U-8D, U-21, CH-
assembly location as follows:
47, or CH-47A aircraft; or Induction Compass
(1) Set the control console switches as fol-
Transmitter DT-309/AJN, used in U-1A or
lows :
U-8D aircraft, in accordance with figure 9-4
(a) ∆ 1 8 0 M I N U T E S , ∆ 2 7 0 M I N -
and the following instructions:
UTES, and MISAL MINUTES: 0.
(1) Remove the transmitter mounting
(b) E1 CHECK-E2 CHECK: OFF.
plate (part No. 2580974) from turntable assem-
(c) E1 NORM. El REV.: OFF.
bly.
(d) E2 NORM.-E2 REV.: OFF.
(2) Remove the MX-8112/ASM-339 (V)
(e) MODE SELECTOR : MON.
from the turntable assembly case.
( f ) H E A D I N G SELECTOR : 0 DE-
(3) Mount the MX-8112/ASM-339 (V)
GREES.
on the turntable assembly.
(9) READOUT SELECT : F.V.
(4) Mount the T-611/ASN or the DT-
(h) DAMPING : OFF.
309/AJN on the turntable assembly.
(i) FV SELECT:
(5) Remove the quick connector (part No.
1. For ML-1: 1.
1780949) from the alignment equipment case.
2. F o r T - 6 1 1 / A S N a n d D T - 3 0 9 /
AJN: 2.
(6) Connect the quick connector between
on turntable assembly for CH-47, CH-47A, U1A, U-8D, and U-21 aircraft.
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