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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