Subtask 21-61-51-865-065
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 8HH 
R  **ON A/C 401-499,
R  49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 52HH  D08 
R  122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC  1HH 3HH  X22X21 
R  **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302, 
R R  122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,  4HH  Y19 
R R  122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC **ON A/C 106-149, 303-399,  2HH  Y18 
R  122VU  4HH  Y19 
R  **ON A/C 401-499, 
R R  122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC  49HH 51HH 50HH  X22 X21Y18

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C ALL
 FOR 28HH 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC  21HH 23HH 24HH 22HH  W22W21Y21Y20 
R  **ON A/C 401-499,
R R  122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC  53HH 55HH 56HH 54HH  W22W21 Y21Y20 
**ON A/C ALL
 4. Procedure_________
 (Ref. Fig. 405/TASK 21-61-51-991-010, 406/TASK 21-61-51-991-012)
 Subtask 21-61-51-560-051
 A. Preparation of the Replacement Component
 (1) Put the hinge assembly (3) in position in the inlet ramp (6).
 (2) Install the hinge pin (4) and the retaining rings (2).
 (3) Put the inlet ramp (6) in position in the diffuser ramp (1).
 (4) Install the hinge pin (5) and the retaining rings (2).
 (5) Put the connecting arms (28) in position in the brackets (9) and install the bushes (8), the bolts (7), the washers (10) and the nuts (11).

 Inlet and Diffuser Ramp - Component Location
 Figure 406/TASK 21-61-51-991-012
 1EFF :  ALL  1  21-61-51 Page 456 
1  1  Aug 01/05
 1  1
 1CES  1

 (6) Put the guides (27) in position in the air-inlet flap assembly. Subtask 21-61-51-420-053
 B. Installation of the Air Inlet Flap
 (1)
 Make sure that the side guides (27) are in position.

 (2)
 Put the air inlet flap-assembly (20) in position in the air inlet.

 (3)
 Install the screws (21).

 (4)
 Lift and put the connecting arms (28) in position in the housings (24).

 (a) Install the bolts (22), the bushes (23), the washers (25) and the nuts (26).

 (5)
 Make sure that the air-inlet flap assembly (20) can move freely through the full range of movement.

 (6)
 Move the air inlet flap-assembly (20) to the open position and:

 (a)
 Put the support rod (10) in position in the bracket (9) and install the bush (8), the bolt (7), the washer (11) and the nut (12).

 (b)
 Put the actuator (1) in position in the lever (4) and install the bush (5), the bolt (6), the washer (3) and the nut (2).

 Subtask 21-61-51-410-056
 C. Installation of the items removed for access
 (1) Install the water injector (Ref. TASK 21-52-42-400-001).
 (2) Install the air inlet (Ref. TASK 21-61-51-400-002). Subtask 21-61-51-820-054
 D. Do the adjustment of the air inlet flap (Ref. TASK 21-61-51-820-001).

R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 Subtask 21-61-51-865-066
 E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 
R  (1) FOR 8HH - 1HH, 2HH, 3HH, 4HH. 
R  (2) FOR 28HH - 21HH, 22HH, 23HH, 24HH: 
R  **ON A/C 401-499,
 Subtask 21-61-51-865-066-A
　
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