C. Prepare for the Test
S 865-236
(1)
Supply electrical power to the airplane (AMM 24-22-00/201).
S 865-235
(2)
Close these circuit breakers:
(a) P6 Main Power Distribution Panel 1) 6C1 ENG 1 FIRE/OVHT DET ALT PWR LOOP A
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A
747-400
MAINTENANCE MANUAL
CARD FILE,
M5206 FIRE
MISCELLANEOUS DETECTION
SWITCHING FIRE CONTROL
MODULE, M7317 MODULE, M7326
SEE A SEE B
FLIGHT COMPARTMENT E/E EQUIPMENT COMPARTMENT CENTER
TEST FIRE/OVHT FIRE/OVHT TEST SWITCH
A
SMOKE INDICATIONB LIGHT (RED)
Main Deck Cargo Compartment Smoke Detection System Component Location Figure 501 (Sheet 1)
F22487
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747-400
MAINTENANCE MANUAL
ELECTRONIC
REFLECTED LIGHT
TEST LED LIGHT BEAM
LIGHT TRAP (ON SOME (ON SOME AIRPLANES)
AIRPLANES)
C
WIRES TO CONNECTORS
EJECTOR
ELECTRICAL
SMOKE DETECTOR (32) SEE
C
CONNECTOR
VENTURI EJECTOR
D
SMOKE SAMPLING PORT (96)
Main Deck Cargo Compartment Smoke Detection System - Component Location
Figure 501 (Sheet 2)
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F22527
A
747-400
MAINTENANCE MANUAL
LOWER CARGO COMPARTMENT FLOOR PANEL
MAIN VACUUM MANIFOLD
PRESSURE SUPPLY LINE
FWD
VENTURI EJECTOR
SEE F
ELECTRICAL CONNECTOR PRESSURE SUPPLY LINE
E
VACUUM PRESSURE SUPPLYSENSE LINE (REFERENCE)LINE
RUBBER
TUBE
MAIN VACUUM
MANIFOLD
(REFERENCE)
VENTURI EJECTOR
CLAMPS
PRESSURE SWITCH
FWD
PRESSURE
SWITCH
ELECTRICAL
CONNECTOR
F
Main Deck Cargo Compartment Smoke Detection System Component Location Figure 501 (Sheet 3)
F22545
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2) 6C2 ENG 2 FIRE/OVHT DET ALT PWR LOOP A 3) 6C3 ENG 3 FIRE/OVHT DET ALT PWR LOOP A 4) 6C4 ENG 4 FIRE/OVHT DET ALT PWR LOOP A 5) 6C5 ALTN PWR - APU FIRE/BLD DUCT OVHT LOOP A 6) 6H10 ENG 1 FIRE/OVHT DET LOOP A 7) 6H11 ENG 1 FIRE/OVHT DET LOOP B 8) 6G10, ENG 2 FIRE/OVHT DET LOOP A 9) 6G11, ENG 2 FIRE/OVHT DET LOOP B 10) 6H12, ENG 3 FIRE/OVHT DET LOOP A 11) 6H13, ENG 3 FIRE/OVHT DET LOOP B 12) 6G12, ENG 4 FIRE/OVHT DET LOOP A 13) 6G13, ENG 4 FIRE/OVHT DET LOOP B 14) 6H14, APU FIRE/BLD DUCT OVHT LOOP A 15) 6H15, APU FIRE/BLD DUCT OVHT LOOP B
(b)
P180 DC Power Distribution Panel
1) 180D17 CMC ENABLE SWITCH
(c)
P7 Overhead Circuit Breaker Panel 1) 7H16 CARGO SMOKE - MAIN DECK ZN 1-8 DET A 2) 7H17 CARGO SMOKE - MAIN DECK ZN 1-8 DET B 3) 7H18 CARGO SMOKE - MAIN DECK ZN 9-16 DET A 4) 7H19 CARGO SMOKE - MAIN DECK ZN 9-16 DET B
D. The FIRE/OVHT TEST Switch operational test
S 865-253
(1) Push and hold the FIRE/OVHT TEST switch on the miscellaneous switch panel M7317 (P5).
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本文链接地址：747-400 AMM 飞机维护手册 防火 FIRE PROTECTION 1(56)
