TM 1-1520-238-23
Change 4
6-399
6.90.
MAIN ROTOR DE-ICE POWER DISTRIBUTOR AND AIR DATA SYSTEM (ADS) MAST
REMOVAL/INSTALLATION – continued
i. Pin identified wires (6) in sockets D and E of
connector P791 (13) of de-ice controller (14)
(TM 55-1500-323-24).
(1) Remove tags.
j. Install wire harness (7) on bracket (8).
(1) Pin wire (11) in pin D on module GS463 (12)
(TM 55-1500-323-24).
(2) Attach connector P131 (9) to receptacle J131
(10).
k. Install clamp (1) on bracket (2).
(1) Install clamp (1) on wires (6).
(2) Install screw (4) through washer (5), clamp
(1), and bracket (2).
(3) Install nut (3) on screw (4).
l. Install wires (6) and harness (22) on deck (17)
(three places).
(1) Install clamp (16) on harness (22) and clamp
(15) on wires (6) (three places).
(2) Insert screw (18) through washer (19), clamp
(15), long spacer (20), clamp (16), and short
spacer (21) on deck (17) (three places).
m. Inspect (QA).
NOTE
If TB 1-1520-238-20-62 (Deactivation of
Main Rotor and Tail Rotor Blade De-ice
Capability) is complied with, do not per-
form step n. Go to step o.
n. Perform rotor blades de-ice maintenance op-
erational check (TM 1-1520-238-T).
o. Perform ADS mast assembly boresighting
(TM 9-1230-476-20-1).
p. Install access panel R200 (para 2.2).
END OF TASK
M04-2984-25
14
13
6
M04-2984-26
1
2
6
8
4
5
12
7
11
9
3
10
M04-2984-28
18
19
15
6
16
20
21
17
22
