(2)
G00033 Cheesecloth - BMS 15-5

 D.  Procedure
 S 024-002
 (1)
To remove external decals, paint strip (Ref 51-21-01).

 S 024-003

 (2)
To remove internal decals, use heat or use solvent.

 (a) To remove decals with heat, do these steps:
 1)  Heat the decal to approximately 120°F until the adhesive becomes soft.
 NOTE:____If you use too much heat, the decal will melt. If the decal melts, remove it with solvent.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 20-11-08
 ALL  ú ú 02 Page 401 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 2)  Lift the corner of the decal with a sharp spatula or knife blade and remove the decal from the surface.
 3)  If necessary, clean the surface. Use a cheesecloth pad that is moist with a solution of one-half cleaner and one-half water.
 (b)  To remove decals with solvent, do these steps: 1) Apply Aliphatic Naphtha to the decal with a brush or cloth. 2) When the decal has wrinkles (after approximately two
 minutes), apply solvent again. 3) After approximately two minutes, move the soft decal off of the surface or remove with a spatula. 4) If necessary, clean the surface with a cheesecloth pad that is moist with Aliphatic Naphtha.
 TASK 20-11-08-404-004
 3.  Install Pressure-Sensitive Decals_________________________________
 A.  References
 (1)  
AMM 12-25-01/301, Airplane Servicing (Exterior Cleaning)

 (2)  
AMM 51-21-03/701, Corrosion Removal and Control

 (3)  
AMM 51-24-02/701, Hydraulic Fluid Resistant Finish

 B.  
Equipment

 (1)  
Scotchcal Cutter - ST732

 (2)  
Felt Squeegee

 C.  
Consumable Materials

 (1)  
B00083 Solvent - Aliphatic Naphtha - TT-N-95

 (2)  
B00151 Solvent - Methyl Isobutyl Ketone - TT-M-268

 (3)  
Activator Solvents

 (a)  
B00092 A-2 and A-3 Activators - JAN-T-171, Grade A

 (b)  
B00089 Solvent - Activator, Cyclohexanone

 (4)  
C00260 Paint - Enamel, BMS 10-11, Type 2

 (5)  
A00559 Edge Sealer No. RFE96J

 (6)  
C00034 Sealer - Bostik 683-3-2 Base with X-310A
 Catalyst (Edge Sealer)

 (7)  
G00270 Masking Tape

 (8)  
G00033 Cheesecloth - BMS 15-5

 (9)  
B00137 Abrasive Paper - 150-Grit

 D.  
Prepare the Surfaces for Installation

 (1)  
Clean corroded aluminum surfaces (AMM 51-21-03).

 S 114-006

 (2)  
Clean wax-coated aluminum surfaces until area shows a water-break-free surface (AMM 12-25-01).

 S 114-007

 (3)  
Use methyl isobutyl ketone cleaner and a clean cloth to clean polyester plastic that is not painted.

 S 114-005
 (a) Dry surface with a clean cloth. Do not let air dry.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 20-11-08
 ALL  ú ú 02 Page 402 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 114-019
 (4)  Use naphtha cleaner and a clean cloth to clean phenolic plastic that is not painted.
 (a)  Dry surface with a clean cloth. Do not let air dry.
 S 114-008
 (5)  Lightly sand cork surfaces with 150-grit abrasive paper until you get a clean cork surface.
 (a)  Remove sanding dust with a clean, dry cloth.
 S 114-021
 WARNING:_______DO NOT GET SOLVENTS IN YOUR MOUTH OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 STANDARD PRACTICES - AIRFRAME(57)