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26-16-01 ALL ú ú 02 Page 406 ú Oct 18/99 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A 747-400 MAINTENANCE MANUAL
SMOKE DETECTOR - CLEANING/PAINTING __________________________________ 1. General _______ A. There are eight smoke detectors in the forward lower cargo compartment. There are eight more smoke detectors in the aft lower cargo compartment. B. The procedure applies to all smoke detectors in the lower cargo compartment.
TASK 26-16-01-107-001 2. Clean the Smoke Detector (Fig. 701) ________________________ A. Standard Tools and Equipment (1) Compressed Air Source - Clean, filtered, dry and maximum pressure 15 psig
(2) Brush - Soft Bristle
B. Consumable Materials (1) B00090 Solvent - Trichloroethane 1:1:1, MIL-T-81533
(2) Paint Touch-Up P/N 2600-08 or 6400-4444 Cardinal Industrial Finishes 890 Commercial Street San Jose, CA 95112 FAX: (408) 452-0318 PHONE: (800) 998-9847
C. References (1) AMM 26-16-00/501, Lower Cargo Compartment Smoke Detection System
(2) IPC 26-16-01, FIG.1
(3) IPC 26-16-01, FIG.2
(4) WDM 26-16-11 THRU WDM 26-16-16
D. Access (1) Location Zones 122 Forward Cargo Container Compartment Forward Half R.H. 142 Aft Cargo Compartment R.H. E. Procedure S 027-002 (1) Remove the detector cover.
(2) Do a check on the inner surface of the smoke detector cell for insects, dirt or water.
NOTE: Such contamination can cause an incorrect failure indication. ____ S 167-004 (3) Blow out the contamination with the dry compressed air with the pressure less than 15 psig. EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-16-01 ALL ú ú 05 Page 701 ú Jun 18/01 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A 747-400 MAINTENANCE MANUAL
2 SMOKE DETECTORS 2 SMOKE DETECTORS EACH ZONE (QTY 8) EACH ZONE (QTY 8) SEE A SEE A COVER SCREW (6 LOCATIONS) COVER SCREW (6 LOCATIONS) GASKET GASKET (ATTACHED TO COVER) ELECTRONICS LENS AND ELECTRONICS ASSEMBLY LAMP HOLDER ASSEMBLY LAMP SPARE LAMPS DETECTOR DETECTOR CARGO COMPARTMENT SMOKE DETECTOR CARGO COMPARTMENT SMOKE DETECTOR (WITH REPLACEABLE LAMPS) (WITH LEDs) A A
Smoke Detector Cleaning Figure 701
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26-16-01 ALL ú ú 03 Page 702 ú Jun 10/94 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. E01262 A 747-400 MAINTENANCE MANUAL (4) S 167-013If water is present, dry the detector with warm, dry air. (5) S 147-005Remove the contamination found on the smoke detector wall with a soft bristle brush. S 117-006
WARNING:_______DO NOT BREATHE THE GAS FROM THE SOLVENT. USE RESPIRATORY EQUIPMENT FOR PROTECTION IF IT IS NECESSARY. MAKE SURE THERE IS A GOOD FLOW OF AIR IN THE AREA. DO NOT GET THE SOLVENT IN YOUR EYES, ON YOUR SKIN, OR ON YOUR CLOTHING. KEEP SOURCES OF IGNITION AWAY FROM THE AREA. THE SOLVENTS ARE POISONOUS AND FLAMMABLE AND CAN CAUSE INJURY TO PERSONS. CAUTION: DO NOT PERMIT THE SOLVENTS TO TOUCH PLASTICS, CONTROL CABLES, _______ LUBRICATED AREAS, DECALS, OR PAINTS. THE SOLVENTS CAN CAUSE DAMAGE. (6) Clean the smoke detector wall with solvent trichloroethane 1:1:1 or naphtha.
(7) Do a check on the inner surface of the smoke detectors for scratches or shiny areas. www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 防火 FIRE PROTECTION 2
