NOTE : Rub the area in the direction of the scratch. Do not rub with
____ a circular motion. Make sure you remove all the rough surface.
 (10)
 Clean the area with CLEANING AGENTS (Material No. 11-004) and a clean cloth.

 (11)
 Apply PRETREATMENT FOR PAINTING (Material No. 13-002) to the metal surface.

 (12)
 Apply the applicable surface protection (Ref. TASK 51-75-12-300-001).

 5. Close-up
________ Subtask 51-73-11-942-052
 A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 TASK 51-73-11-300-002

 Repair of Minor Damage on Titanium, Forged Aluminum, or Steel Components
 WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______
 ONLY WITH A GOOD SUPPLY OF AIR.
 OBEY THE MANUFACTURERS INSTRUCTIONS.
 PUT ON PROTECTIVE CLOTHING.
 DO NOT GET THEM IN YOUR MOUTH.
 DO NOT SMOKE.
 DO NOT BREATHE THE GAS.
 THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT.
 GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.

 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific abrasive cloth grade 280
 No specific abrasive cloth grade 400
 No specific lint-free cloth
 No specific rounded scotch stone

 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 05-025  USA MIL-P-6888
 POLISH METAL ALUMINUM (Ref. 20-31-00)

R Material No. 11-002  USA MIL-PRF-680 DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT) (Ref. 20-31-00)
 Material No. 11-004  USA MIL-T-81533
 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
 (Ref. 20-31-00)

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 13-002  USA MIL-C-5541 MIL-C-81706 CLASS I/A
 CHEMICAL CONVERSION COATING YELLOW ALUMINUM
 (Ref. 20-31-00)

 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
51-74-11-300-001 Repair of Corroded Areas
 51-75-12-300-001 Repair of Major Paint Damage on Light Alloy and
 Composite Material

 3. Job Set-up
__________
 Subtask 51-73-11-941-053

 A. Get access to the area of the damage.
 4. Procedure
_________ Subtask 51-73-11-320-055 R A. Repair of Minor Damage
 (1)
 If necessary, remove any corrosion (Ref. TASK 51-74-11-300-001).

 (2)
 Measure the depth of the scratch.

R (3) Refer to the ASRM 51-73-00 and the applicable ASRM-chapter 52 thru 57 R for the permitted depth limits.
 (4)
 Clean the repair area with CLEANING AGENTS (Material No. 11-004) and a lint-free cloth.

 (5)
 For damage to titanium: CAUTION : USE WATER WHEN YOU GRIND TITANIUM. TITANIUM DUST IS

_______
 FLAMMABLE.

 (a)
 Remove the paint from the area of the damage with abrasive cloth grade 280.

 (b)
 Remove the scratch with a rounded scotch stone and water. Move the scotch stone along the scratch until the contour is smooth and rounded.

 (c)
 Rub the roughened area with abrasive cloth grade 400 and CLEANING AGENTS (Material No. 11-002). Rub along the length of the scratch until the surface is smooth.

 WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE
_______
 SPECIAL MATERIAL.
 THIS MATERIAL IS DANGEROUS.

 (d)
 Clean the area with CLEANING AGENTS (Material No. 11-004) and a lint-free cloth.

 (e)
 Polish the bare metal with SPECIAL MATERIALS (Material No. 05-025) and a lint-free cloth.

 NOTE : Rub the area in the direction of the scratch. Do not rub
____ in a circular motion. Make sure you remove all the rough surfaces.
 (f) Clean the area with CLEANING AGENTS (Material No. 11-004) and a clean cloth.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM STANDARD PRACTICES AND STRUCTURES(23)