26-14-50
 ALL  ú ú 02 Page 505 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-015
 (10) Push and hold the crew rest reset switch, on the X1081 attendant panel located in the upper deck seating area outside the lavatory, for 5 seconds.
 NOTE: THIS RESETS THE SUPPLY AIR VALVE TO THE OPEN POSITION.
____
 S 865-016
 (11) Put the airplane to normal configuration.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-14-50
 ALL  ú ú 02 Page 506 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 AFT UPPER DECK CREW REST AREA SMOKE DETECTOR - REMOVAL/INSTALLATION
___________________________________________________________________
 1.  General_______
 A.  This procedure gives removal and installation instructions for the smoke detectors M5162, M5163 and M5164 in the aft upper deck crew rest area.
 B.  Three smoke detectors are installed in the crew rest area ceiling. The removal and installation procedures are same the for each smoke detector.
 TASK 26-14-51-004-001
 2.  Remove the Crew Rest Area Smoke Detector (Fig. 401)________________________________________
 A.  Reference
 (1)  
WDM 26-13-31

 (2)  
SSM 26-13-05

 B.  Access
 (1)  Location Zone
 233 Area Above Ceiling C
 234 Area Above Ceiling LH and RH

 C.  Procedure
 S 864-002
 (1)  
Open circuit breaker 7F4 CREW REST SMOKE DET on the P7 overhead circuit breaker panel, and attach a DO-NOT-CLOSE tag.

 S 034-003

 (2)  
Loosen the two screws on the smoke detector face plate.

 NOTE: Screws are attached to face plate.
____
 S 014-004
 (3)  
Remove the faceplate from the smoke detector case.

 S 034-005

 (4)  
Remove the two mounting screws that attach the smoke detector case to the ceiling bracket.

 (5)
Remove the smoke detector ceiling bracket from the ceiling.

 S 034-007

 (6)  
Disconnect electrical connector DM5162, DM5163 or DM5164.

 S 034-006
 (a)  Disconnect the sliding lock assembly from the electrical connector if it is installed.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-14-51
 ALL  ú ú 02 Page 401 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 034-008
 (7)  
Support the detector case and disconnect the lanyard from the rear of the smoke detector case.

 S 024-009

 (8)  
Remove the smoke detector.

 TASK 26-14-51-404-010
 3. Install the Crew Rest Area Smoke Detector (Fig. 401)
 A. Reference
 (1)  
26-14-50/501, Aft Upper Deck Crew Rest Area Smoke Detection System

 (2)  
WDM 26-13-31

 (3)  
SSM 26-13-05

 B.
Access

 (1)  
Location Zone
 233 Area Above Ceiling LH
 234 Area Above Ceiling RH

 C.
Procedure

 S 864-011
 (1)  
Open the circuit breaker 7F4 CREW REST SMOKE DET on the P7 overhead circuit breaker panel and attach a DO-NOT-CLOSE tag.

 S 434-012

 (2)  
Attach the lanyard from the ceiling bracket to the smoke detector case.

 S 434-013

 (3)  
Reconnect electrical connector DM5162, DM5163 or DM5164.

 (a)  Attach the sliding lock assembly to the electrical connector if it is installed.
 S 414-014
 (4)
Put the ceiling bracket on top of the smoke detector and loosely tighten the two mounting screws on the smoke detctor case.

 S 424-015

 (5)  
Insert the smoke detector into the ceiling and push on the screws until the ceiling bracket snaps into position.
　
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