CAUTION: DO NOT ABRADE THE SURFACE OF THE WINGLET TO THE EXTENT
_______ THAT THE CARBON FIBER FILAMENTS ARE EXPOSED OR DAMAGED.
 (d)  Complete the removal of residue by sanding with aluminum oxide sandpaper.
 F. Install the conducting strip.
 S 358-005
 (1)  Make the conducting strip.
 (a)  
Use the remaining conducting strip found above the static discharger locations as a template.

 (b)  
Trim to size to overlap the existing conducting strip under the static discharger locations.

 (c)  
Drill holes in the new strip to align with the attach holes in the remaining strips.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 57-28-01
 ALL  ú ú 02 Page 802 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

INBOARD WINGLET CONDUCTING STRIP
AND STATIC DISCHARGERS (EXAMPLE)

A

Winglet Conducting Strip Repair
Figure 801 (Sheet 1)

L07089
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 57-28-01
 ALL  ú ú 01 Page 803 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

B-B  BETWEEN REPLACEMENT

STRIP AND EXISTING STRIP
BMS 9-3, STYLE 120 FIBERGLASS OVERLAY PLY.
TREAT CONTACTING SURFACES WITH CONVERSION COATING.
SPLICE STRIP AND REPLACEMENT STRIP

ARE THE SAME WIDTH AS THE EXISTING STRIP.
Winglet Conducting Strip Repair
Figure 801 (Sheet 2)

L07169
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 57-28-01
 ALL  ú ú 01 Page 804 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 118-006
 (2)  Before installation, clean the new conducting strip.
 (a)  
Remove the grease and apply the recommended alkaline cleaner.

 (b)  
Soak the conducting strip in the alkaline cleaner for a minimum of 10 minutes.

 NOTE: The temperature of the cleaner must be 160bF to 180bF
____
 (71 - 82 degrees C).

 1)  Flush the conducting strip with clean water at a temperature of 110 degrees farenheight until the strip is free of water breaks.
 (c)  Dry the strip with a lint-free cloth.
 NOTE: The temperature of the water must be a minimum of 110bF.
____
 (d)  
For the side that you bond, rub smooth grit sandpaper on that side.

 (e)  
Wash and rub that side clean.

 S 428-007
 (3)  Bond the conducting strip.
 (a)  Prepare the adhesive.
 WARNING: THESE CHEMICALS CONTAIN TOXIC INGREDIENTS.
_______ PROVIDE ADEQUATE VENTILATION AND PROTECT THE SKIN AND EYES FROM CONTACT WITH UNCURED RESINS OR THE AGENT. WEAR RUBBER GLOVES OVER COTTON GLOVES FOR PROTECTION OF YOUR HANDS. IF THE SKIN IS EXPOSED TO DIRECT CONTACT WITH UNCURED RESINS OR CURING AGENT, WASH WITH WARM WATER AND SOAP. AVOID USE OF SOLVENTS FOR CLEANING SKIN.
 1)  Fully mix 140 parts by weight of EC-2216 Part A with 100 parts by weight of EC-2216 Part B.
 NOTE: The pot life of the mixture is approximately
____
 two (2) hours.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 57-28-01
 ALL  ú ú 01 Page 805 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR 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(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 機翼 WINGS(44)