(9)
Flush the surfaces with clean water.
Subtask 57-71-11-860-050
B. Aircraft Maintenance Configuration
(1) Extend the spoiler (Ref. TASK 27-60-00-866-002)
(2) Make sure that the COLLAR-SAFETY, SPOILER (98D27604000000) is installed on the spoiler actuator.
(3) Depressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-864-001) (Ref. TASK 29-24-00-864-001) (Ref. TASK 29-10-00-864-003).
4. Procedure_________
CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING_______ EDGE: - DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS. - DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS. - MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
Subtask 57-71-11-110-052
R A. Cleaning
R R R R WARNING : CLEANING SOLVENTS ARE FLAMMABLE, VOLATILE, TOXIC. THEY SHOULD_______ BE USED WITH ADEQUATE VENTILATION. AVOID PROLONGED BREATHING OF VAPORS AND REPEATED OR PROLONGED CONTACT WITH THE SKIN, OR CLOTHING.
R R CAUTION : DO NOT APPLY TOO MUCH PRESSURE WITH YOUR HAND OR YOU WILL CAUSE_______ DAMAGE TO THE PAINT.
(1) Use the vacuum cleaner or the soft brush to remove loose particles.
R R (2) Use a MISCELLANEOUS (Material No. 19-003), made moist with CLEANING AGENTS (Material No. 11-004) to remove heavy contamination.
NOTE : Make sure unwanted material does not go into the spoiler____ bearings and the servo control.
(3) Use clean water to remove the CLEANING AGENTS (Material No. 11-001)
(4) Use clean MISCELLANEOUS (Material No. 19-003) to dry the spoiler.
(5) Use a MISCELLANEOUS (Material No. 19-003), made moist with CLEANING AGENTS (Material No. 11-004) to clean the spoiler. Clean a small area at a time. Apply the cleaning agent to the cloth and not the cloth to the cleaning agent. This prevents contamination of the cleaning agent.
(10) Dry the surfaces with the clean MISCELLANEOUS (Material No. 19-003). Subtask 57-71-11-370-050
B. Painting
(1)
Examine the paint finish for indications of damage.
(2)
If necessary, repair minor damage to the paint top coat, when the primer coat is not damaged (Ref. TASK 51-75-12-300-003)
(3)
If necessary, repair major damage to the paint finish, when the primer coat is damaged: - on light alloy and composite structures (Ref. TASK 51-75-12-300-
001) - on steel structure (Ref. TASK 51-75-12-300-002)
5. Close-up
________ Subtask 57-71-11-860-051
A. Aircraft Configuration
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Retract the spoiler (Ref. TASK 27-60-00-866-002)
(3)
On the servo-control, make sure that the pointer on the hex-head is opposite the letter 'O' (Operation) on the housing.
Subtask 57-71-11-942-053
B. Removal of Equipment
(1)
Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) from the flap/slat control lever.
(2)
Remove the warning notice(s).
1EFF : ALL 1 57-71-11Page 704 1 1 Aug 01/99R 1 1 1CES 1
(3)
Remove the access platform(s).
(4)
Remove the safety barriers.
(5)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
SPOILER 2 - DESCRIPTION AND OPERATION
_____________________________________
1. General
_______
(Ref. Fig. 001)
R The spoiler 2 is installed on the fixed structure of the trailing edge. It is connected to the mid rear spar, immediately outboard of the kink position.
The spoiler 2 is one of five spoilers which are extended or retracted for these functions:
-roll function
-speedbrake function
-ground spoilers function.
The drive mechanism of the spoilers is electrically controlled (Ref. 27-90-00) and uses hydraulic power to extend or retract the surfaces (Ref. 27-64-00).
R
2. Component Description
_____________________ The spoiler is a wedge shaped structure of carbon fiber top and bottom skins, sides and trailing edge profile, bonded to a honeycomb core. There are four machined aluminum-alloy attachment-fittings. These are the inboard and outboard hinge brackets (with links) the center hinge and the spoiler actuator attachment-fitting. The actuator attachment-fitting is installed within the center hinge. The spoiler is attached by the links and the center hinge to the mid rear spar.
A titanium alloy rubbing strip is attached to the trailing edge of the spoiler, to prevent damage to the spoiler when the outboard flap is retracted. Seals are located at the inboard and outboard ends and along the leading edge of the spoiler.
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