_______________________________________________
A. References
(1)
SSM 21-45-08
(2)
WDM 21-45-61
B. Access
(1) Location Zone
225 Aft Upper Deck, LH
C. Prepare for Removal
S 864-002
(1) Open this circuit breaker and attach a DO-NOT-CLOSE identifier:
(a) D.C. Power Distribution Panel, P180
1) 180G25, UPR DK CREW REST SMK EVAC VLV
S 014-003
(2) Get access to the shutoff valve through the access door on the aft end of the crew rest area.
D. Remove the Shutoff Valve
S 034-004
(1)
Remove the electrical connector, DV553, from the shutoff valve.
S 034-005
(2)
Remove the two clamps that attach the shutoff valve to the ducts.
S 034-006
(3)
Remove the two plastic straps that attach the shutoff valve to the support bracket.
S 024-007
(4)
Remove the shutoff valve.
TASK 21-29-02-404-008
Crew Rest Area Smoke Mode Shutoff Valve Installation Fig. 401)
____________________________________________________
A. References
(1) AMM 24-22-00/201, Manual Control
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
CREW REST AREA SMOKE MODE SHUTOFF VALVE
SEE A
VALVE POSITION
INDICATOR
ELECTRICAL CONNECTOR
CLAMP (2 LOCATIONS)
PLASTIC STRAP VALVE (2 LOCATIONS)
FWD
A
Crew Rest Area Smoke Mode Shutoff Valve Installation
Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C78901
A
747-400
MAINTENANCE MANUAL
(2)
SSM 21-45-08
(3)
WDM 21-45-61
B. Access
(1) Location Zone
225 Aft Upper Deck, LH
C. Install the Valve
S 984-009
(1) Put the shutoff valve in its position between the ducts.
(a) Install the valve with the flow arrow pointing forward and the valve actuator oriented outboard.
S 434-010
(2)
Install the two plastic straps that attach the shutoff valve to the support bracket.
S 434-011
(3)
Install the two clamps that attach the shutoff valve to the ducts.
S 434-012
(4)
Install the electrical connector, DV553, on the valve.
S 864-013
(5)
Remove the DO-NOT-CLOSE identifier and close this circuit breaker:
(a) D.C. Power Distribution Panel, P180
1) 180G25, UPR DK CREW REST SMK EVAC VLV
D. Do an Installation Test of the Shutoff Valve
S 864-014
(1)
Supply electrical power (AMM 24-22-00/201).
S 864-015
(2)
Make sure that the shutoff valve is open.
NOTE: There is a position indicator on the valve.
____
S 864-016
(3)
Make sure that the CREW REST RESET switch-light on the crew rest area attendant's panel is not on.
S 864-017
(4)
Push the the Self Test button on one of the smoke detectors in the crew rest area.
NOTE: The Self Test button is the second button from the green
____
power lamp.
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21-29-02
ALL ú ú 01F Page 403 ú Oct 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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