(a)
 Disconnect the forward hose (40) from the tube (20).

 (b)
 Disconnect the aft hose (5) from the tube (20).

 (c)
 Remove the bulkhead nut (10) and washer (15) from the tube (20). NOTE : Use a second wrench to hold the fittings on the tube (20)

____ when you loosen the coupling nuts on the hoses and when you loosen the bulkhead nut.

 (d)
 Remove the bolts (25), washers (30), and nuts (35) that attach the tube (20) to the forward anti-ice duct (65). Let the clamps

 (45) stay on the tube (20).

 (e)
 Remove the tube (20) from the anti-ice duct (65).

 (2)
 Remove the coupling (60) that connects the forward anti-ice duct (65) to the anti-ice valve (4000DN). Keep the seal (55) to use again if it is serviceable.

 (3)
 Remove the coupling (60) that connects the forward anti-ice duct (65) to the mid anti-ice duct (90). Keep the seal (55) to use again if it is serviceable.

 (4)
 Remove the bolts (70), the washers (75), and the nuts (85) that attach the forward anti-ice duct (65) to the support links (80).

 (5)
 Remove the forward anti-ice duct (65) from the engine.

 1EFF : ALL 1 30-21-49Page 426 1 1 May 01/05R 1 1 1CES 1

 (6)
 Put blanking plugs on the disconnected ducts, and the anti-ice valve.

 (7)
 Put protective covers on the hoses and the two ends of the muscle pressure tube.

 1EFF : ALL 1 30-21-49Page 427 1 1 May 01/05R 1 1 1CES 1

 Anti-ice Ducts Figure 402/TASK 30-21-49-991-301- 12 (SHEET 1)
 1EFF : 1 1R 1CES  ALL  1 11 1 30-21-49 Page 428 May 01/05

 Anti-ice Ducts Figure 402/TASK 30-21-49-991-301- 22 (SHEET 2)
 1EFF : 1 1R 1CES  ALL  1 11 1 30-21-49 Page 429 May 01/05

 TASK 30-21-49-400-044

 Installation of the Forward Anti-ice Duct
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific fiber hammer
 No specific warning notice
 No specific access platform 0.5 m (1 ft. 8 in.)

R No specific Torque Wrench : range 5.00 to 35.00 lbf.in
R (0.05 to 0.40 m.daN) No specific Torque Wrench : range 36.00 to 220.00 lbf.in
 (0.40 to 2.60 m.daN)
 B. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
 -------------------------------------------------------------------------------
55 E-seal 30-21-49 01A-130 55 E-seal 30-21-51 01A-020
 C. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
 the External Power
 71-13-00-010-040 Opening of the Fan Cowl Doors
 71-13-00-410-040 Closing of the Fan Cowl Doors
 78-30-00-081-041 Make the Thrust Reverser Serviceable after

 Maintenance -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 78-36-00-410-040 Closing of the Thrust Reverser Doors 30-21-49-991-301 Fig. 402
 3. Job Set-up
__________
 Subtask 30-21-49-860-064
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the ground service network is energized
 (Ref. TASK 24-42-00-861-001).

 (2)
 On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.

 (3)
 On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).

 (4)
 Make sure that the access platform is in position.

 Subtask 30-21-49-010-059
　
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