4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 30-11-51-020-050
 A. Removal of the Wing Anti-Ice Control Valve
 (1)
 Disconnect the electrical connectors (8), (9) and (10).

 (2)
 Remove the coupling (3) from the anti-ice valve (2) and move the duct

 (4) outboard.

 (3)
 Hold the anti-ice valve (2) and remove the coupling (1). Move the anti-ice valve (2) outboard to disconnect the locating pin (6) and lower the anti-ice valve from its location.

 (4)
 Put blanking caps on:

 -the open ends of the anti-ice ducts (4) and (11)
 -the electrical connectors (7), (8), (9) and (10).
 **ON A/C 301-399,

 Subtask 30-11-51-020-050-A
 A. Removal of the Wing Anti-Ice Control Valve
 (1)
 Disconnect the electrical connectors (5), (6) and (7).

 (2)
 Remove the clamp (3) and move the duct (4) away from the anti-ice control valve (2).

 (3)
 Hold the anti-ice control valve (2) and remove the clamp (1).

 (4)
 Move the anti-ice control valve (2) sideways to disconnect the location pin (8) and remove the anti-ice control valve (2).

 (5)
 Put blanking caps on:

 -
the open ends of the anti-ice ducts (4) and (9)

 -
the electrical connectors (5), (6) and (7)

 -
the electrical connectors and the openings on the anti-ice control valve (2).

 **ON A/C ALL
 TASK 30-11-51-400-001
 Installation of the Wing Anti-Ice Control Valve
 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.

 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 warning notices
 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)

 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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)

 C. Referenced Information

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
30-11-00-710-001 Operational Test of the Wing Ice-Protection System

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 30-11-51-991-001 Fig. 401
 **ON A/C 301-399,
 30-11-51-991-001-A Fig. 401A
 **ON A/C ALL
 3. Job Set-up

__________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 401/TASK 30-11-51-991-001)
 **ON A/C 301-399,

 (Ref. Fig. 401A/TASK 30-11-51-991-001-A)

R **ON A/C ALL

 Subtask 30-11-51-941-057
 A. Safety Precautions
 WARNING : MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU
_______
 START WORK ON THE PNEUMATIC SYSTEM.

 (1) Make sure that the warning notices are in these positions before you do work on the ice protection system: - on the high-pressure ground-power connections, to tell persons not
 to pressurize the pneumatic system
 -in the cockpit, to tell persons not to operate the engines or APU control switch - on the panel 30VU, to tell persons not to pressurize the bleed air system
 - on the panel 115VU, to tell persons not to operate the slat controls.
 (2) Make sure that he safety barriers are in position.
 Subtask 30-11-51-860-051
 B. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is below the applicable zone 522 (622).
　
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