(b) If necessary, for ease of removal, loosen the bolt (220) of the loop clamp (230) of the 9th stage air tube (70).

 (c) Remove the HPTACC Valve (10) from the combustion case boss (20).

 (d) Remove the bolts (110) from the 9th stage air outlet elbow (120) and the HPTACC valve (10).

 (e) Remove and discard gasket (100).

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 (f) Install blanking plugs on the inlet and the outlet ports of the 9th stage air outlet elbow (120).

 (g) Install blanking plugs on the inlet and the outlet ports of the 4th stage ports of the HPTACC valve (10).

 (h) Install a blanking plugs on the inlet port of the 9th stage port of the HPTACC valve (10).

 (i) Install a blanking plugs on the boss of the 4th stage air at the combustion case (20). (10).

 (j) Install a blanking plugs on the outlet port of the 9th stage port of the HPTACC valve (10).

 (k) Install blanking caps on the electrical connectors on the HPTACC valve for Channel A (270) and Channel B (240).

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 TASK 75-21-10-400-002
 Installation of the High Pressure Turbine Active Clearance Control (HPTACC) Valve
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific soft jawed pliers
 No specific warning notice
 No specific Torque Wrench : range 36.00 to 220.00 lbf.in

 (0.40 to 2.60 m.daN)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP8001 *
 lockwire 0.032 in.(0.8mm) dia. (Ref. 70-30-00)
 Material No. CP8002 *
 lockwire 0.032 in.(0.8mm) dia. (Ref. 70-30-00)

 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
30 gasket 75-21-10 01B-020 90 gasket 75-21-10 01B-060 100 gasket 75-21-10 01B-060 150 gasket 75-21-10 01B-100 155 gasket 75-21-10 01B-090 170 seal ring 75-21-10 01B-120 170 seal ring 75-21-10 01B-120A 280 gasket 75-21-10 01B-150
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 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
280 gasket 75-21-10 01B-150A
 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
R 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 71-00-00-710-006 Minimum Idle Check 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
 Engine Motoring)
 78-30-00-081-041 Make the Thrust Reverser Serviceable after
 Maintenance
 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
 75-21-10-991-301 Fig. 401

 3. Job Set-up
__________
 Subtask 75-21-10-860-051
 A. Aircraft Maintenance Configuration
 (1) 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.

 (2) 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).
　
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