W DOC AIRBUS | AMM A320F

Installation of the High Pressure Turbine Active Clearance Control (HPTACC) Valve [CFMI]

TASK 75-21-10-400-001-A
Installation of the High Pressure Turbine Active Clearance Control (HPTACC) Valve

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
PLIERS - JAWED, SOFT
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T
No specific
Torque wrench: range to between 125 and 100 lbf.in (1.41 and 1.13 m.daN ) T
No specific
Torque wrench: range to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T
No specific
Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T
No specific
Torque wrench: range to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2101)
graphite grease
(Material No.CP5070)
vaseline
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 462AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
250
O-RING
AIPC 75-21-10-01-040
220
GASKET
AIPC 75-21-10-01-060
80
GASKET
AIPC 75-21-10-01-080
290
C-SEAL GASKET
AIPC 75-21-10-01-120
60
C-SEAL
AIPC 75-21-10-01-120
190
C-SEAL GASKET
AIPC 75-21-10-01-170
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 70-21-00-918-001-A
Seals (Preformed Packings and O-rings) and Gaskets
TASK 71-00-00-710-006-A
Minimum Idle Check
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A
Closing of the Fan Cowl Doors
TASK 73-29-00-710-040-A-01
FADEC Ground Test Without the CFDS
TASK 73-29-00-710-040-A
Operational Test of the FADEC on the ground (with Engine Motoring)
TASK 73-29-00-710-040-A-01
FADEC Ground Test Without the CFDS
TASK 73-29-00-710-040-A-02
Operational Test of the FADEC on the Ground (with Engine non Motoring)
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A
Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
F HPTACC Valve Location
F TCC Drain Tube and Fuel Manifold
F HPTACC Valve
F Stage 5 Air Tube
F Air Start Tube and TCC Air Manifold
3. Job Set-up
Subtask 75-21-10-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) 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(S) is in position to tell persons not to energize the FADEC 1(2).
Subtask 75-21-10-865-056-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
Subtask 75-21-10-010-054-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the right thrust reverser door is open: (Ref. AMM TASK 78-36-00-010-040)
     (a) FOR [1000EM1] (ENGINE-1)
452AR
     (b) FOR [1000EM2] (ENGINE-2)
462AR
Subtask 75-21-10-040-052-A ** ON A/C NOT FOR ALL
D. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).
4. Procedure
Subtask 75-21-10-210-051-A ** ON A/C NOT FOR ALL
A. Do an inspection of the gaskets assemblies (60), (80), (190), (220), (290) (Ref. AMM TASK 70-21-00-918-001).
Subtask 75-21-10-420-050-A ** ON A/C NOT FOR ALL
B. Installation of the HPT Active Clearance Control (HPTACC) Valve:
   (1) Remove all protective plugs from the HPTACC valve (260) and the tubes and bosses.
   (2) Clean the component interface and/or the adjacent area.
   (3) Do a visual inspection of the component interface and/or the adjacent area.
NOTE: If the new HPTCC valve (260) has a drain port nipple, do not do the step (4).
   (4) Install the nipple (240) into the drain port of the HPTACC valve (260) as follows:
     (a) Lubricate the new AIPC 75-21-10-01-040 O-RING (250) with vaseline (Material No.CP5070)
     (b) Install the O-ring (250) on the nipple (240).
     (c) Install the nipple (240) into the drain port.
     (d) TORQUE the nipple:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
       1 TORQUE the nipple (240) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
   (5) Connect the stage 9 inlet flange of the HPTACC valve (260) to the combustion case boss as follows:
F HPTACC Valve ** ON A/C NOT FOR ALL
     (a) Lubricate the bolts (270), (280) with graphite grease (Material No.CP2101) .
     (b) Install the new AIPC 75-21-10-01-120 C-SEAL GASKET (290) between the stage 9 inlet flange and the combustion case boss.
     (c) Install the stage 9 inlet flange of the HPTACC valve (260) to the combustion case boss with bolts (270), (280). Do not torque the bolts (270), (280).
   (6) Connect the stage 5 air tube flange (170) to the stage 5 inlet flange of the HPTACC valve (260) as follows:
F Stage 5 Air Tube ** ON A/C NOT FOR ALL
     (a) Lubricate the bolts (150) with graphite grease (Material No.CP2101) .
     (b) Make sure the space between the gaps in the ring seals (180) is equal to 180 degrees.
     (c) Install the new AIPC 75-21-10-01-170 C-SEAL GASKET (190) between the stage 5 air tube (170) and the stage 5 inlet flange of the HPTACC valve (260).

PRE SB (CFM56-5) 72-033

     (d) Install the bolts (155), washers (165) and nuts (195) to attach the stage 5 air tube (170) to the HPTACC valve (260). Do not torque the bolts (155).

POST SB (CFM56-5) 72-033

     (e) Install the bolts (155) and washers (165) to attach the stage 5 air tube (170) to the HPTACC valve (260). Do not torque the bolts (155).

POST SB (CFM56-5) 75-018

     (f) Install the bolts (155) to attach the stage 5 air tube (170) to the HPTACC valve (260) and support bracket. Do not torque the bolts (155).

PRE SB (CFM56-5) 72-033

     (g) Install the bolts (150), washers (160) and nuts (195) to finish attaching the stage 5 air tube (170) to the HPTACC valve (260). Do not torque the bolts (150).

POST SB (CFM56-5) 72-033

     (h) Install the bolts (150) and washers (160) to finish attaching the stage 5 air tube (170) to the HPTACC valve (260). Do not torque the bolts (150).
   (7) Connect the TCC air manifold (10) to the TCC flange of the HPTACC valve (260) as follows:
F Air Start Tube and TCC Air Manifold ** ON A/C NOT FOR ALL
     (a) Lubricate the bolts (20, 40) with graphite grease (Material No.CP2101) .
     (b) Install the new AIPC 75-21-10-01-120 C-SEAL (60) between the TCC air manifold (10) and the TCC flange of the HPTACC valve (260).

PRE SB (CFM56-5) 72-012

     (c) Install the manifold bracket (50) to the TCC air manifold (10) and the TCC flange of the HPTACC valve (260) with bolts (20). Do not torque the bolts (20).

POST SB (CFM56-5) 72-012

     (d) Install the manifold bracket (50) to the TCC air manifold (10) and the TCC flange of the HPTACC valve (260) with bolts (20) and washers (30). Do not torque the bolts (20).

PRE SB (CFM56-5) 72-012

     (e) Install the bolts (40) and the nuts (45) to finish attaching the TCC air manifold (10) to the TCC flange of the HPTACC valve (260). Do not torque the bolts (40).

POST SB (CFM56-5) 72-012

     (f) Install the bolts (40), washers (30) and nuts (45) to finish attaching the TCC air manifold (10) to the TCC flange of the HPTACC valve (260). Do not torque the bolts (40).

POST SB (CFM56-5) 72-033

     (g) Install the bolts (40) and washers (30) to finish attaching the TCC air manifold (10) to the TCC flange of the HPTACC valve (260). Do not torque the bolts (40).
   (8) Install the start air tube to the start bleed port of the HPTACC valve (260) as follows:
     (a) Lubricate the bolts (70) with graphite grease (Material No.CP2101) .
     (b) Install the new AIPC 75-21-10-01-080 GASKET (80) between the start bleed tube (90) and the start bleed port of the HPTACC valve (260).

PRE SB (CFM56-5) 72-033

     (c) Install the air start tube (90) to the start bleed port of the HPTACC valve (260) with bolts (70) and nuts (75). Do not torque the bolts (70).

POST SB (CFM56-5) 72-033

     (d) Install the air start tube (90) to the start bleed port of the HPTACC valve (260) with bolts (70). Do not torque the bolts (70).
   (9) Connect the TCC fuel manifold (200) to the fuel supply flange of the HPTACC valve (260) as follows:
     (a) Lubricate the bolts (210) with graphite grease (Material No.CP2101) .
     (b) Install the new AIPC 75-21-10-01-060 GASKET (220) between the TCC fuel manifold (200) and the fuel supply flange of the HPTACC valve (260).
     (c) Install the TCC fuel manifold (200) to the fuel supply flange of the HPTACC valve (260) with bolts (210). Do not torque the bolts (210).
   (10) Torque the bolts that follow in a criss-cross pattern:
     (a) Triple-torque the bolts (270) and (280) installed on the stage 9 inlet flange as follows:
       1 TORQUE the bolts to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T.
       2 Break the torque and TORQUE again to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T.
       3 TORQUE again to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T.
       4 Install the lockwire.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
         a Attach the bolts (270) and (280) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
     (b) Triple-torque the bolts (150), (155) installed on the stage 5 inlet flange as follows:
       1 TORQUE the bolts to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
       2 Break the torque and TORQUE again to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
       3 TORQUE again to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
     (c) TORQUE the bolts (20), (40) installed on the TCC flange to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
     (d) TORQUE the bolts (70) installed on the start bleed flange to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
     (e) TORQUE the bolts (210) installed on the fuel supply flange to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.

PRE SB (CFM56-5) 75-018

   (11) Connect the support link (100) to the HPTCC valve (260) as follows:
     (a) Install and align the support link (100) to the attachment lug of the HPTACC valve (260).
     (b) Cut and remove the lockwire from the nut of the support link (100).
     (c) Adjust the support link (100) by turning it one-half of a turn counterclockwise.
     (d) Install the support link (100) to the attachment lug with the bolt (110) and nut (120).
     (e) TORQUE the bolt (110) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
     (f) TORQUE the nut on the support link (100) to between 125 and 100 lbf.in (1.41 and 1.13 m.daN ) T
     (g) Safety the nut on the support link (100) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

POST SB (CFM56-5) 75-018

   (12) Step not necessary. There is no support link.
   (13) Connect the drain tube (230) to the drain port nipple of the HPTACC valve (260) and to the drain line.
   (14) TORQUE the coupling nut on the drain tube (230) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
   (15) Install the cap assembly (225) on the drain tube (230) with your hand.
   (16) TORQUE the cap assembly (225) to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) T.
   (17) Remove the caps from the electrical connectors.
   (18) Connect the electrical connectors, Channel A (140) and Channel B (130) to the HPTACC valve (260). Tighten the connectors with your hand plus one-eight of a turn. If necessary, use PLIERS - JAWED, SOFT.
Subtask 75-21-10-410-052-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the right thrust reverser door: (Ref. AMM TASK 78-36-00-410-040)
     (a) FOR [1000EM1] (ENGINE-1)
452AR
     (b) FOR [1000EM2] (ENGINE-2)
462AR
Subtask 75-21-10-440-051-A ** ON A/C NOT FOR ALL
D. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041)
Subtask 75-21-10-861-050-A ** ON A/C NOT FOR ALL
E. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
Subtask 75-21-10-869-051-A ** ON A/C NOT FOR ALL
F. Do the EIS start procedure (upper ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
Subtask 75-21-10-865-053-A ** ON A/C NOT FOR ALL
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
Subtask 75-21-10-710-050-A ** ON A/C NOT FOR ALL
H. Do this test:
   (1) Do an operational test of the FADEC on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
NOTE: As an alternative procedure, you can do this operational test without the CFDS (Ref. AMM TASK 73-29-00-710-040).
   (2) Do a minimum idle check for leaks (Ref. AMM TASK 71-00-00-710-006). Make sure that on the CFDS no fault is shown related to the HPTACC valve.
Subtask 75-21-10-862-050-A ** ON A/C NOT FOR ALL
I. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
5. Close-up
Subtask 75-21-10-869-050-A ** ON A/C NOT FOR ALL
A. Do the EIS stop procedure: (Ref. AMM TASK 31-60-00-860-002)
Subtask 75-21-10-410-051-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (3) Remove the WARNING NOTICE(S).
Subtask 75-21-10-862-052-A ** ON A/C NOT FOR ALL
C. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 12:54:45 UTC
"Aviabrain" 2025