NOTE: Use the minimum quantity necessary to get a
____
 satisfactory bond.

 S 348-096
 WARNING: DO NOT GET TUF-ON P-24A IN YOUR MOUTH OR EYES, OR ON YOUR SKIN.
_______ DO NOT BREATHE THE FUMES. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES. TUF-ON P24A CONTAINS PHENOLIC RESINS WHICH CAN CAUSE INJURY TO PERSONS.
 (9)  Fill the clearance around the repair plug with TUF-ON P-24A.
 NOTE: Apply more than is necessary to make sure the clearance
____ is fully filled. The unwanted material is removed in the subsequent step.
 S 348-097
 (10)
 Let the TUF-ON P-24A cure.

 (11)
 Apply masking tape to the area around the repair.

 S 958-098
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 25-00-00
 ALL  ú ú 01 Page 823 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 S 348-099
 (12)
 Rub the TUF-ON P-24A with 240- to 320-grit abrasive paper until it is smooth and level with the adjacent surfaces.

 S 378-100

 (13)
 Apply silk screen ink of the correct color to match the
 adjacent area.

 S 378-101

 (14)
 Let the ink dry for 15 minutes.

 S 498-102

 (15)
 Apply the silicone embossing pad to the surface you repaired and then apply vacuum pressure (approximately 10 inches of Hg). Keep this configuration until the surface is cured (15 minutes at 160°F).

 E. Repair Panels with Compound Curvature
 S 348-190
 (1)  
Attach a template with the correct hole diameter on the damaged area with the double-backed tape.

 S 348-103

 (2)  
Cut out the damaged area; go through the full thickness of the panel (the non-decorative skin too).

 NOTE: In areas where you cannot use a template, do the steps that
____
 follow:

 (a)  
Drill a 1/4-inch hole through the damaged area.

 (b)  
Use a hole saw with a 1/4-inch pilot to remove the damaged area.

 S 348-104
 (3)  Prepare a silicone embossing pad.
 (a)  
Clean the surface with aliphatic naphtha.

 (b)  
Make a frame, approximately 3/8-inch wide by 1/2-inch high, around the clean surface.

 NOTE: Use wood, clay, or high temperature vacuum sealant tape
____
 for the frame.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 25-00-00
 ALL  ú ú 01 Page 824 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

 (c)  Apply a thin layer of prepared silicone rubber on the textured
 surface in the frame with a brush.  Continue to use the brush
 until you cannot see air bubbles.
 NOTE:____ Almost all brands, types, or colors of castable silicone
 rubber are satisfactory, but not the dark red types
 which contain finely divided iron oxide.  Dow Corning
 Silastic RTV "B", "E", 587, or 93072, and General
 Electric RTV41 or RTV61 are prefered.  Obey the
 manufacturer's instructions when you prepare and use
 these materials.
 (d)  Pour the remaining silicone rubber on the brushed surface until
 it is 1/4 inch thick.  Let it cure at room temperature for 48
 hours.
 NOTE:____ One pound of prepared silicone rubber will make a
 10-inch-by-10-inch-by-1/4-inch replica.
 (e)  When the silicone embossing pad is dry, remove it from the
 surface.

 S 498-105
 (4)  
Put the silicone embossing pad over the hole on the decorative face of the panel.

 S 498-106

 (5)  
Hold the silicone embossing pad in position with weights or a vacuum bag.

 NOTE: In areas where you cannot use a silicone embossing pad,
____ seal the hole with masking tape.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 EQUIPMENT/FURNISHINGS 1(22)