TM 1-1520-238-23
6-392
Change 1
6.90.
MAIN ROTOR DE-ICE POWER DISTRIBUTOR AND AIR DATA SYSTEM (ADS) MAST
REMOVAL/INSTALLATION – continued
6.90.3. Removal
a. Remove clamp (1) from bracket (2).
(1) Remove nut (3), screw (4), and washer (5)
from clamp (1) and bracket (2).
(2) Remove two wires (6) from clamp (1).
b. Remove wire harness (7) from bracket (8).
(1) Detach connector P131 (9) from receptacle
J131 (10).
(2) Depin ground wire (11) from pin D on module
GS463 (12) (TM 55-1500-323-24).
c. Identify and depin wires (6) from sockets D
and E of connector P791 (13) on de-ice con-
troller (14) (TM 55-1500-323-24).
d. Remove clamps (15) and (16) from transmis-
sion deck (17) (three places).
(1) Remove screw (18), washer (19), clamp (15),
long spacer (20), clamp (16), and short
spacer (21) from deck (17) (three places).
(2) Remove clamp (15) from wires (6) (three
places).
(3) Remove clamp (16) from ADS harness (22)
(three places).
CAUTION
Main rotor blades are individually cali-
brated to de-icing system controller. Re-
cord blade serial number and power
distributor connector number to ensure
installation at same position. Failure to
maintain proper de-ice system adjust-
ment will result in damage to heater ele-
ments.
GO TO NEXT PAGE
M04-2984-2
1
2
3
8
10
4
5
12
9
7
11
6
M04-2984-11
14
13
6
M04-2984-12
17
22
6
18
19
15
20
16
21
M04-2984-13
