757 AMM 飞机维护手册 EQUIPMENT/FURNISHINGS 1(17)

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 25-00-00
 ALL  ú ú 01 Page 812 ú Sep 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 348-035
 CAUTION: BE CAREFUL WHEN YOU APPLY HEAT NEAR MATERIALS THAT CAN BURN.
_______ THE TEMPERATURE OF THE TEDLAR MUST NEVER BE MORE THAN 200°F OR THE TEMPERATURE AT WHICH THE TEDLAR DISTORTS, WHICHEVER IS LOWER. TOO MUCH HEAT CAN CAUSE DAMAGE TO THE TEDLAR.
 (5)  Carefully increase the temperature of the insert until you can remove the insert from the panel.
 NOTE: If you do not use heat during the removal of the insert,
____ damage to the front panel can occur. Refer to AMM 20-10-26/201 for cautions to obey when you use heat guns.
 S 348-036
 (6)
Use the manufacturer's instructions to mix the Epocast 1618 A/B.

 S 348-037

 (7)  
Fill the hole with the adhesive mixture.

 S 348-038

 (8)  
Push a new insert slowly into the mixture. Let the mixture flow around the insert and completely fill the hole.

 S 348-039

 (9)  
Let the adhesive mixture cure for 3 hours at 75°F.

 S 348-040

 (10)
 Repair the skin with the procedure given before for panels that do not have core damage.

 L. Repair Bassinet Fittings
 S 348-041
 (1)  
Fully remove the old epoxy material.

 (2)  
Remove some material from under the top skin.

 S 348-043

 (3)  
Use the manufacturer's instructions to mix the Epocast
 1618 A/B.

 (4)  
Fill the hole with the adhesive mixture.

 S 348-045

 (5)  
Apply mylar tape to make a cover on the end of the hole in the bassinet fitting.

 S 348-042
 S 348-044
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 25-00-00
 ALL  ú ú 01 Page 813 ú Sep 20/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 348-046
 (6)  
Slowly push the fitting in the hole.

 S 348-047

 (7)  
Remove the unwanted adhesive that comes out when you push the insert in the hole.

 S 348-048

 (8)  
Let the adhesive cure for 3 hours minimum.

 TASK 25-00-00-308-049
 3.  Repair Decorative Surfaces___________________________
 A. General
 (1)  This task contains instructions to repair decorative tedlar surfaces that have small scratches, small holes, and gouges.
 NOTE: Make sure the area you want to repair is smaller than
____ 100 square inches. If the area is larger than 100 square inches, you must replace the part.
 The repair depth cannot be larger than 0.10-inch in a tedlar-covered crushed-core panel that is 0.25-inch thick or more, or 0.005-inch deep in a panel that is less than 0.25-inch thick.
 WARNING:_______DO NOT BREATH THE ASBESTOS DUST. PUT ON A PROTECTIVE RESPIRATOR WHEN YOU DRILL THE LAVATORY PANELS. THE ASBESTOS DUST CAN GET IN YOUR MOUTH OR NOSE IF YOU DO NOT USE THE PROTECTIVE RESPIRATOR AND CAN CAUSE CANCER OR LUNG DISEASE.
 (2)  Obey this WARNING during all of this task.
 B. Equipment
 (1)  
Heat Gun - 1200 to 1500 watts

 (2)  
Spray Gun - Paint

 C. Consumable Materials
 (1)  
Adhesives

 (a)  
A00000 Filler - BMS 5-136, Ad Tech 15-3

 (b)  
A00032 BMS 5-127, Type II, Bostik 7132 with Boscodur 24

 

 (2)  
Solvents

 (a)  
B00083 Aliphatic Naphtha, TT-N-95

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

 

 (3)  
B00026 Buffing Compound - Learock S-30,

 B00027 Optional to Learock S-30 :  Learock 888

 (4)  
B00168 Paper - Abrasive, 400-600-grit

 (5)  
B00380 Paper - Abrasive, 240-320 grit

 (a)  Silk Screen Ink - BMS 10-73
 1) C00367 Type I

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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