(4)
 Depressurize the applicable hydraulic system:

 -
for the spoiler 1 and the spoiler 5, depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001) and the green hydraulic reservoir (Ref. TASK 29-14-00-614-001)

 -
for the spoiler 2 and the spoiler 4, depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002) and the yellow hydraulic reservoir (Ref. TASK 29-14-00-614-001)

 -
for the spoiler 3, depressurize the Blue hydraulic system (Ref. TASK 29-10-00-864-003) and the blue hydraulic system reservoir (Ref. TASK 29-14-00-614-001).

 Servo-Valve - Location and Detail Figure 403/TASK 27-64-51-991-004
 1EFF : 1 1R 1CES  ALL  1 11 1 27-64-51 Page 439 Feb 01/03

 Subtask 27-64-51-865-053
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 6CV B07 49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/SOL VALVES/G/Y/PTU 1801GL N34 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 121VU FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 8CV Q21 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34 123VU B HYD/ELEC PUMP 2701GJ AB09 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
 Subtask 27-64-51-010-054
 D. Get Access
 (1) Put the access platform in position below the applicable servo-valve (3).
 1EFF : ALL 1 27-64-51Page 440 1 1 Feb 01/03R 1 1 1CES 1

 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 27-64-51-020-051
 A. Removal of the Servo-Valve from the Spoiler Servo-Control 
R R  WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE_______ LOCKWIRE CAN CUT OR BLIND YOU. 
R  (1) Cut, remove and discard the lockwire from the bolts (4).
 (2) Remove the bolts (4) from the servo-valve (3).
 (3) Remove the servo-valve (3) from the spoiler servo-control (1).
 (4) Remove and retain the gasket (5).
 (5) Remove and discard the O-ring (2). 
R R  (6) Put a blanking cover on the open spoiler servo-control (1) interface to prevent entry of unwanted material.

 TASK 27-64-51-400-002
 Installation of the Servo-Valve on the Spoiler Servo-Control
 WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
_______
 NOTICES ARE IN POSITION.

 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
 GEAR.

 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.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
 No specific soft brush
 No specific warning notice
 No specific warning notice(s)
 No specific access platform 3.5 m (11 ft. 6 in.)

R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft) 98D27603002000 1 SPOILER MAINTENANCE KEY 98D27603002001 1 SPOILER MAINTENANCE KEY B. Consumable Materials

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. 02-003  F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
 Material No. 04-010 USA MIL-G-25013 GREASE SYNTHETIC, BALL+ROLLER BEARING (Ref. 20-31-00) Material No. 04-015 USA BAC 5001 DACO-5073 GREASE (Ref. 20-31-00) Material No. 11-026 GB DEF-STAN 68-148/1 SOLVENT GENERAL PURPOSE (Ref. 20-31-00) Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
　
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