12-25-01
 ALL  ú ú 01 Page 341 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

 WARNING: REFER TO AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS FOR THE
_______ LANDING GEAR. THE DOORS CAN FALL AND CAUSE INJURY OR DAMAGE IF THE LOCKS ARE NOT REMOVED CORRECTLY.
 (j)  Remove the door locks for the landing gear, and close the landing gear doors (AMM 32-00-15/201).
 S 113-014
 (5)  Remove Unwanted Hydraulic Fluid
 CAUTION: IF HYDRAULIC FLUID GETS ON THE CARBON BRAKES, YOU MUST
_______ REPLACE THE BRAKES. HYDRAULIC FLUID SPILLS ON TIRES CAN BE CLEANED WITH SOAPY WATER.
 (a)  Clean the unwanted hydraulic fluid with a mop or rags.
 CAUTION: DO NOT USE WATER OR CLEANERS THAT CONTAIN FLAMMABLE
_______
 SOLVENTS TO CLEAN WARM COMPONENTS.

 (b)  Use the MIL-T-81533A degreasing fluid to clean the hydraulic fluid from warm components.
 S 113-015
 (6)  Clean With Foam
 NOTE: Use foam when it is possible that the cleaner will stay
____
 on the surface for up to 15 minutes.

 (a)  Fill the tank of the foam generator. Use a liquid that contains one part of cleaner (from Table 301 or Oakite 74L) and 10 to 20 parts of water.
 NOTE: If you do not have a foam generator, mix the liquid
____
 quickly to make the foam.

 WARNING: DO NOT USE HIGH-PRESSURE SPRAY EQUIPMENT TO CLEAN
_______ MECHANICAL, ELECTRICAL, OR HYDRAULIC COMPONENTS. LIQUIDS THAT GET INTO THESE AREAS CAN CAUSE CORROSION, FREEZE DURING AIRPLANE FLIGHT, OR REMOVE NECESSARY LUBRICANTS.
 CAUTION: KEEP THE NOZZLE OF THE SPRAY EQUIPMENT MORE THAN 12 INCHES
_______ AWAY FROM THE SURFACE OF THE AIRPLANE. THE SPRAY CAN CAUSE DAMAGE TO THE SURFACE.
 (b)  
Apply water to the area that you will clean.

 (c)  
Apply a heavy layer of foam cleaner.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-25-01
 ALL  ú ú 01 Page 342 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 (d)  
Let the cleaner soak for 5 to 15 minutes. Apply the cleaner again if necessary to keep the surface wet.

 (e)  
Rub the surface with a brush to help remove unwanted material.

 CAUTION: MAKE SURE YOU FLUSH THE SURFACE SUFFICIENTLY TO REMOVE ALL
_______ OF THE CLEANER. THE CLEANER CAN CAUSE CORROSION IF IT IS NOT REMOVED COMPLETELY FROM THE AIRPLANE SURFACE.
 (f)  
Flush the surface with clean, warm water (160°F maximum).

 (g)  
Dry the wet surfaces with air or towels.

 G. Put the Airplane Back In Its Usual Condition
 S 843-041
 WARNING: FAILURE TO REMOVE COVERS FROM PITOT PROBES BEFORE FLIGHT MAY
_______ CAUSE LARGE ERRORS IN AIRSPEED-SENSING AND ALTITUDE-SENSING SIGNALS, WHICH MAY LEAD TO LOSS OF SAFE FLIGHT.
 CAUTION:_______REMOVE ALL COVERS. ENGINES SHOULD NOT BE OPERATED WITH COVERS IN PLACE BECAUSE THE COVERS CAN COME OFF AND DAMAGE THE ENGINES.
 (1)  Remove covers from the following components:
 (a)  Pitot probes
 (b)  Engine inlet, fan exhaust, and turbine exhaust
 (AMM 71-00-03/201)
 (c)  Brakes
 (d)  Tires
 S 843-033
 (2)  Remove the "PITOT PROBES COVERED" tag from the left control wheel in
 the flight deck.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-25-01
 ALL  ú ú 01 Page 343 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 S 843-042
 WARNING: FAILURE TO REMOVE BARRICADE TAPE AND VINYL ADHESIVE TAPE FROM
　
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 SERVICING 2(78)