757 AMM 飞机维护手册 STANDARD PRACTICES - AIRFRAME(64)

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 C.  The surface you paint and the type of finish necessary will tell you which paint to use for markings. Make sure the paint is correct to use with the initial surface finish.
 D.  In areas where a skydrol 500 resistant finish is necessary, apply BMS 10-60, Type II enamel.
 E.  Where letter sizes are less than two inches in height and width, use BMS 10-60 enamel for letters.
 NOTE: Use BMS 10-79, Type II primer on painted or not painted surfaces
____
 when you use BMS 10-60, Type II.

 F.  For markings installed directly over corogard EC 843 or EC 843S, use EC 942 black.
 TASK 20-10-15-374-001
 2.  Install Stencil or Insignia Markings
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 A.  General
 (1)  
Make sure you do not get clean surfaces dirty when you clean adjacent surfaces.

 (2)  
Use a polyethylene wash bottle to apply solvents. Make sure you know the contents of the bottle.

 (3)  
Avoid overspray contamination of adjacent areas.

 (4)  
Make sure all coatings or finishes are uniform, homogeneous, and free from gelled particles.

 (5)  
Apply primer and stencil paint with spray equipment only. Do not spray adjacent surfaces.

 (6)  
Make sure all coating or finish materials are mixed correctly and identified with a label. Discard materials with expired pot life.

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 (7)  
Make sure painted markings are well formed and have a solid,

 homogeneous color.Equipment

 (1)  
Bottles, Polyethylene - size as necessary, with nozzle

 (2)  
Brush, Fiber - soft bristle

 (3)  
Burnishing Tool - plastic or wood

 (4)  
Gloves, Knitted Cotton - lightweight, white

 (5)
Spray EquipmentConsumable Materials

 (1)  
Solvents

 (a)  
B00316 or B00083 Solvent - Aliphatic Naphtha, TT-N-95, Type I or Type II

 (b)  
B00148 Methyl Ethyl Ketone (MEK), TT-M-261

 (c)  
B00083 Aliphatic Naphtha, TT-N-95, Type II

 

 (2)  
G00117 Tape, Masking - Permacel P112

 (3)  
G00033 Wipers, BMS 15-15, Classes A and B

 (4)  
G00251 Abrasive Paper - 280 grit or finer

 (5)  
Finishes

 (a)  
C00319 BMS 10-79, Type II Primer

 (b)  
C00032 BMS 10-60, Type II Enamel

 (c)  
C00035 EC 942 Black (Corogard)

 

 (6)  
B00151 Methyl Isobutyl Ketone (MIBK)

 (7)
B00079 Butyl AcetateReferences

 (1)  
AMM 20-30-98/201, Solvent, Series 98

 (2)  
AMM 51-21-01/701, Paint Stripping

 (3)  
AMM 51-21-02/701, Prepaint Cleaning and Treatment

 (4)
AMM 51-21-10/701, Decorative Exterior FinishesPrepare Surface for Stencil Markings

 S 954-002

 (1)  
Mask or use a protective cover on all adjacent surfaces which you will not clean, treat, or paint.

 S 034-003

 (2)  
If it is necessary to remove old markings, do the steps that follow:

 (a)  
Strip markings (Ref 51-21-01)

 (b)  
Prepare surface (Ref 51-21-02)

 (c)  
Apply a layer of material equivalent to the initial material (Ref 51-21-10).

 

 S 114-004
 (3)  Do these steps to clean the surface:
 (a)  To remove loose dirt and unwanted grease or oil, rub or scrub. Be careful not to get dirt on a larger area than necessary.
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