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26-15-02
DETECTORS ú
ú 03 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 402Jan 20/98
A
757
MAINTENANCE MANUAL
UPPER FIRE DETECTOR
A
QUICK-RELEASE
CLAMP
SEE A
LOWER FIRE DETECTOR
4. BUSHING
A
SUPPORT TUBE
5. CLIP-P
1. DETECTOR ELEMENT
2. WASHER-TAB
RETAINING NUT
END BRACKET
ELECTRICAL CONNECTOR LOCKWIRE
3. WASHER-SEALING COPPER (4 LOCATIONS)
APU FIRE DETECTOR
TIGHTEN CONNECTION
AIRPLANE WIRING
BUSHING DETECTOR
(2 LOCATIONS)
ELEMENT
(2 LOCATIONS)
A
ELECTRICAL
B
LOCKWIRECONNECTOR
QUICK-RELEASE
CLAMP
A A-A
APU Fire Detector Element Installation
Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH GRAVINER FIRE DETECTORS ú
26-15-02
ú ú 07 Page 403 ú Jun 20/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A72145
A
757
MAINTENANCE MANUAL
C. Access (1) Location Zones 119/120 Main Equipment Center 211/212 Flight Compartment 310 Fuselage
(2) Access Panels 311/312 313/314 315/316 Area Aft of Pressure Bulkhead to BS 1725 (L, R)Stabilizer Torsion Box Compartment (L, R)APU Compartment
D. Remove the APU Fire Detector Element
(1) S 864-001Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags: (a) 11B24, FIRE DETECTION APU 1
E. S 014-002 (2) Open the APU access doors and install rods to hold the doors open.AIRPLANES WITH SYSTRON DONNER FIRE DETECTORS; Remove the detector element
(1) S 034-003Remove the four bolts (2) to remove the two clamps (4) on the detector responder (1).
(2) S 034-004Disconnect the electrical connector and install a protective cap.
F. S 034-005 (3) Open the quick-release clamps (10) to remove the detector element (9).AIRPLANES WITH GRAVINER FIRE DETECTORS; Remove the detector element
(1) S 034-006Disconnect the electrical connectors at each end of the detector element to be removed and install protective caps. Discard copper crush washers.
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26-15-02
ALL ú ú 04 Page 404 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 034-007
(2)
Remove the retaining nut which holds the detector element connector to the end bracket of the support tube at each end of the detector.
S 034-008
(3)
Remove the connector from the end brackets.
S 024-009
(4)
Open the quick-release clamps and remove the detector element.
TASK 26-15-02-424-010
3. Install the APU Fire Detector Element (Fig. 401)
_____________________________________
A. References
(1) AMM 24-22-00/201, Electrical Power - Control
B. Equipment
(1) Torque Wrench - commercially available
C. Access
(1)
Location Zones
119/120 Main Equipment Center
211/212 Flight Compartment
310 Fuselage
(2)
Access Panels 311/312 Area Aft of Pressure Bulkhead to BS 1725 (L, R) 313/314 Stabilizer Torsion Box Compartment (L, R) 315/316 APU Compartment
D. AIRPLANES WITH SYSTRON DONNER FIRE DETECTORS;
Install the detector element
S 434-011
(1) Install the responder (1) with the two clamps (4), and four bolts (2), washers (3), and nuts (7).
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