757 AMM 飞机维护手册 空调 AIR CONDITIONING 1(156)

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 B.  Two shoulder heaters, one for the first officer and one for the captain, are installed on the ducts under the cabin floor. The heaters make the air warm before it is supplied to the flight deck. The captain's shoulder heater is on the left side of the plane and the first officer's is on the right side.
 TASK 21-45-02-004-001
 2.  Remove the Shoulder Air Supply Heater (Fig. 401)_____________________________________
 A.  References
 (1)  
06-41-00/201, Fuselage Access Doors and Panels

 (2)  
24-22-00/201, Electric Power Control

 (3)  
36-00-00/201, Pneumatic General

 B.  
Access

 (1)  
Location Zones
 211/212 Control Cabin - Section 41

 C.  
Procedure

 S 864-002
 (1)  
Supply electrical power (AMM 24-22-00/201)

 S 864-003

 (2)  
For removal of the captain's shoulder heater, set the captain's shoulder heater selector on the captain's auxiliary instrument forward panel, P13, to OFF.

 S 864-004

 (3)  
For removal of the first officer's shoulder heater, set the first officer's heater selector on the first officer's instrument forward panel, P14, to OFF.

 S 864-005

 (4)  
Put the left and right pack control selector on the pilot's overhead panel, P5, to OFF and attach a DO-NOT-OPERATE tag.

 S 864-006

 (5)  
For the removal of the captain's shoulder heater, open these circuit breakers on relay panel, P70, and attach DO-NOT-CLOSE tags:

 (a)  
70A5, CAPT AUX HTR LO

 (b)  
70A6, CAPT AUX HTR HI

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 21-45-02
 ALL  ú ú 01 Page 401 ú May 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

Shoulder Air Supply Heater - Installation
Figure 401

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 21-45-02
 ALL  ú ú 01 Page 402 ú Jun 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 864-008
 (6)  
For removal of the first officer's shoulder heater, open these circuit breakers on the right miscellaneous relay panel, P37, and attach DO-NOT-CLOSE tags:

 (a)  
37F4, HEATERS F/O AUX HI

 (b)  
37F3, HEATERS F/O AUX LO

 S 014-009
 (7)  
Open the applicable access door (116AR, 115AL or 113AL) and find the shoulder heater (AMM 06-41-00/201).

 S 034-010

 (8)  
Disconnect the electrical connector.

 S 034-011

 (9)  
Loosen the middle support clamp that attaches the shoulder heater to the structure.

 S 034-012

 (10)
 Remove the two clamps that attach the shoulder heater to the duct.

 S 034-013

 (11)
 Move the sleeve and flexible duct away from the shoulder heater.

 S 024-014

 (12)
 Remove the shoulder heater

 TASK 21-45-02-404-015
 3. Install the Shoulder Air Supply Heater (Fig. 401)
______________________________________
 A. References
 (1)  
06-41-00/201, Fuselage Access Doors and Panels

 (2)  
24-22-00/201, Electric Power Control

 (3)  
36-00-00/201, Pneumatic General

 B.
Access

 (1)  
Location Zones
 211/212 Control Cabin - Section 41

 

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 21-45-02
 ALL  ú ú 01 Page 403 ú May 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 C. Procedure
 S 424-016
　
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