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时间:2011-03-31 23:57来源:蓝天飞行翻译 作者:航空
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 CAUTION: MAKE SURE YOU PUT THE CLAD PENETRATING SOLUTION ONLY
_______ ON THE SCRATCH. THE SOLUTION WILL CAUSE DAMAGE TO THE SURFACE WHERE IT IS APPLIED.
 6)  Apply one drop of clad penetrating solution with the point of a sharp tool to the deepest part of the scratch.
 NOTE: Use the minimum quantity of the clad penetrating
____ solution necessary to flow to the bottom of the scratch.
 7)  If the bottom of the scratch becones black, immediately flush the scratch with water. Do not let the clad penetrating solution stay on the scratch for more than three minutes.
 NOTE: If the bottom of the scratch becomes black, then
____ the scratch penetrated the clad to the base metal.
 WARNING:_______ONLY ADD ACID TO WATER. NEVER ADD WATER TO ACID OR A VIOLENT REACTION MAY OCCUR.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 02 Page 225 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 (b)

(c)

(d)


A
737-300/400/500MAINTENANCE MANUAL
 WARNING:_______ DO NOT GET NITRIC ACID IN YOUR EYES, ON YOUR SKIN, OR
 ON YOUR CLOTHES.  IF NITRIC ACID GETS IN YOUR EYES,
 IMMEDIATELY FLUSH YOUR EYES WITH WATER.  IF NITRIC
 ACID GETS ON YOUR SKIN, IMMEDIATELY FLUSH YOUR SKIN
 WITH WATER.  MAKE SURE YOU PUT ON SPLASH GOGGLES OR A
 FACE SHIELD.  MAKE SURE YOU PUT ON A RESPIRATOR AND
 ACID RESISTANT GOLVES WHEN YOU PREPARE THE NITRIC

 ACID SOLUTION.
 8) Prepare the nitric acid solution as follows: a) Mix one volume of acid, O-N-350 with two to three volumes of water.
 WARNING: DO NOT GET NITRIC ACID IN YOUR EYES, ON YOUR SKIN, OR
_______ ON YOUR CLOTHES. IF NITRIC ACID GETS IN YOUR EYES, IMMEDIATELY FLUSH YOUR EYES WITH WATER. IF NITRIC ACID GETS ON YOUR SKIN, IMMEDIATELY FLUSH YOUR SKIN WITH WATER. MAKE SURE YOU PUT ON SPLASH GOGGLES OR A FACE SHIELD. MAKE SURE YOU PUT ON A RESPIRATOR AND ACID RESISTANT GOLVES WHEN YOU APPLY THE NITRIC ACID SOLUTION.
 9) Apply one drop of the nitric acid solution to the scratch.
 10) Let the nitric acid solution stay on the scratch for a maximum of one minute.
 11) Flush the scratch with clean water.
 WARNING: DO NOT GET CHEMICAL CONVERSION COATING IN YOUR MOUTH,
_______ IN YOUR EYES, ON YOUR SKIN, OR ON YOUR CLOTHES. IMMEDIATELY FLUSH CHEMICAL CONVERSION COATING FROM YOUR SKIN. IF CHEMICAL CONVERSION COATING GETS IN YOUR EYES, IMMEDIATELY FLUSH YOUR EYES WITH WATER FOLLOWED BY AN EYE WASH OF BORIC ACID SOLUTION. MAKE SURE YOU PUT ON A RESPIRATOR AND PROTECTIVE GLOVES WHEN YOU APPLY THE CHEMICAL CONVERSION COATING. KEEP THE CHEMICAL CONVERSION COATING AWAY FROM SPARKS, FLAME, AND HEAT. CHEMICAL CONVERSION COATING IS POISONOUS AND FLAMMABLE AND CAN CAUSE INJURY TO PERSONS AND DAMAGE EQUIPMENT.
 12) Apply Alodine 1000 to the scratch with a swab, cloth, or
 sponge (AMM 51-21-31).
If the scratch went through the clad aluminum, do
 PROCEDURE III.
Use the Clean the External Surfaces of the Airplane procedure
 to clean around the scratch.
If the surface is badly scratched, remove the scratches with
 fine or ultrafine Scotch-Brite pads.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 02 Page 226 ú Jul 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (e)  Polish with the air-driven sander/polisher as follows:
 NOTE: Polish the airplane surface first with Schaffner
____ No. 521 white bar compound. Polish with the Schaffner No. 521 white bar compound until all of the gray undercast is removed. Then apply the No. 4094 green coloring bar compound.
 Always clean the surface with solvent before you change to a different bar compound.
 1) Remove the dried polish material from the buffer wheel with a wheel rasp or a coarse file. 2) Apply the applicable polishing compound to the buffer wheel. 3) Hold the buffer wheel parallel to the direction that you
 polish. 4) Polish in the forward-to-aft direction. 5) Use sufficient pressure to remove the stains and scratches. 6) Move the buffer wheel in the correct direction to keep the
 
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