(6)
Tighten the screws that hold the ceiling bracket in position.
S 434-016
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MAINTENANCE MANUAL
CEILING
BRACKET
CASE
ELECTRICAL CONNECTOR
NOTE: FACE PLATE ATTACHING SCREWS ARE NOT REMOVABLE LANYARD
LOCK RELEASE MECHANISM FOR SMOKE SENSOR
FACE PLATE
(2 LOCATIONS)
Aft Upper Deck Crew Rest Area Smoke Detector Cleaning
Figure 401
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S 434-017
(7)
Put the face plate on the smoke detector and tighten the face plate screws.
S 864-018
(8)
Remove the DO-NOT-CLOSE tag and close the circuit breaker, 7F4 CREW REST SMOKE DET, on the P7 overhead circuit breaker panel.
S 734-019
(9)
Do the aft upper deck crew rest area smoke detection operational test (Ref 26-14-50/501).
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747-400 MAINTENANCE MANUAL
AFT UPPER DECK CREW REST AREA SMOKE DETECTOR - CLEANING/PAINTING
____________________________________________________________________
1. General_______
A. This procedure gives a task to clean the smoke detectors.
B. Three smoke detectors are installed on the aft upper deck crew rest ceiling. This procedure applies to all smoke detectors.
TASK 26-14-51-107-001
2. Clean the Aft Upper Deck Crew Rest Area Smoke Detector (Fig. 701)______________________________________________________
A. Standard Tools and Equipment
(1)
Compressed air source
(2)
Nylon Brush
(3)
Lint-Free cloth
(4)
Luke-warm water
(5)
Standard Screwdriver
B. Consumable Materials
(1) B00158 Detergent
C. References
(1)
26-14-50/501, Aft Upper Deck Crew Rest Area Smoke Detection System
(2)
26-14-51/401, Aft Upper Deck Crew Rest Area Smoke Detector
(3)
WDM 26-13-31
(4)
SSM 26-13-05
D. Access
(1) Location Zone
233 Area Above Ceiling C
234 Area Above Ceiling LH and RH
E. Procedure
S 037-002
(1)
Remove dust from the exterior of the unit with a nylon bristle brush. Finish with a dry, lint-free cloth.
(2)
Remove the detector assembly (Ref 26-14-51/401).
S 037-004
(3)
Remove the two screws on the face plate which hold the face plate to the smoke detector assembly.
(4)
Remove the face plate from the smoke detector assembly.
(5)
Push the lock release mechanism in the smoke detector assembly.
S 037-003
S 017-005
S 867-006
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MAINTENANCE MANUAL
CEILING
BRACKET
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