W DOC AIRBUS | AMM A320F

Installation of the Low Pressure Compressor (LPC) Bleed-Master Actuator [IAE]

TASK 75-31-42-400-010-B
Installation of the Low Pressure Compressor (LPC) Bleed-Master Actuator

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING: DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
ZONE: 400
FIN: 4021KS ** 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
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T
No specific
Torque wrench: range to between 60 and 50 lbf.in (0.68 and 0.57 m.daN ) T
No specific
Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN ) T
No specific
Torque wrench: range to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ) T
No specific
Torque wrench: range to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T
No specific
Torque wrench: range to between 475 and 425 lbf.in (5.37 and 4.80 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.V01-124)
Isopropyl Alcohol, Technical grade
(Material No.V02-126)
lockwire
(Material No.V02-147)
lockwire
(Material No.V10-077)
lubricant (engine oil)
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
25
DOUBLE KEY WASHER
AIPC 75-31-42-80-020
8
SEALING RING
AIPC 75-31-42-80-040
10
SEALING RING
AIPC 75-31-42-80-050
4
SEALING RING
AIPC 75-31-42-80-050
7
SEALING RING
AIPC 75-31-42-80-050
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 70-23-13-911-010-A
Procedures for the Installation of Preformed Packings
TASK 70-23-15-912-010-A
Connection of Electrical Connectors
TASK 70-30-00-918-010-A
Consumable Materials Index
TASK 70-40-11-911-010-A
Installation of the Tab-type Key Washers
TASK 71-00-00-710-012-B
Test No.3 : Idle Leak Check
TASK 71-00-00-710-013-C
Test No.11 : High Power Assurance Test
TASK 71-00-00-710-045-A
Test No.1 : Dry Motor Leak Check
TASK 71-13-00-010-010-A
Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A
Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
F LPC Bleed-Master Actuator
3. Job Set-up
Subtask 75-31-42-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on ENG panel 115VU, make sure that the WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On overhead maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
   (3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
Subtask 75-31-42-010-055-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowls are open (Ref. AMM TASK 71-13-00-010-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR.
     (b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
   (2) Make sure that the thrust reverser halves are open (Ref. AMM TASK 78-32-00-010-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL, 452AR.
     (b) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
Subtask 75-31-42-040-053-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).
Subtask 75-31-42-630-051-A ** ON A/C NOT FOR ALL
D. Remove all the covers/caps/plugs from all the openings.
Subtask 75-31-42-110-051-A ** ON A/C NOT FOR ALL
E. Use a Textile-Lint free Cotton - (Material No.14SBA1) made moist with V01-124Isopropyl Alcohol, Technical grade to clean the LPC bleed-master actuator and actuator bracket mating faces.
Subtask 75-31-42-210-051-A ** ON A/C NOT FOR ALL
F. Make sure that the mating faces have no damage.
4. Procedure
Subtask 75-31-42-420-056-A ** ON A/C NOT FOR ALL
A. Installation of the LPC bleed-master actuator
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces of the bolts (28) and (33).
   (2) Align the two guide pin holes in the actuator mounting flange with the two guide pins (22) on the mount bracket.
   (3) Attach the LPC bleed-master actuator (32) and the bracket (26) to the mount bracket with the bolts (28) and (33).
   (4) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN ) T (Ref. AMM TASK 70-23-13-911-010)
Subtask 75-31-42-420-057-A ** ON A/C NOT FOR ALL
B. Connect the master actuator to the bleed valve actuating rod
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces of the bolt (24).
   (2) Connect the fork end (34) to the actuating rod (35) with the AIPC 75-31-42-80-020 DOUBLE KEY WASHER (25) and the bolt (24) (Ref. AMM TASK 70-40-11-911-010).
NOTE: Make sure that the bent tab of the key washer is engaged with a recess (23) in the fork end.
   (3) TORQUE the bolt (24) to between 60 and 50 lbf.in (0.68 and 0.57 m.daN ) T.
   (4) Bend the double keys of the key washer to safety the bolt (24) in position (Ref. AMM TASK 70-40-11-911-010).
Subtask 75-31-42-420-058-A ** ON A/C NOT FOR ALL
C. Attach the raceway to the bracket
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Make sure that the clip nut (27) is installed in position on the bracket (26).
   (2) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolt (31).
   (3) Align the bolt hole in the raceway (29) with the clip nut (27) and attach the raceway to the bracket with the bolt (31) and the washer (30).
   (4) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T.
Subtask 75-31-42-420-059-A ** ON A/C NOT FOR ALL
D. Connect the servo retract fuel tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Lubricate the new AIPC 75-31-42-80-050 SEALING RING (4) with clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010).
   (2) Install the sealing ring on the servo retract connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo retract fuel tube (5) to the retract connector.
   (4) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
   (5) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-30-00-918-010) (Ref. AMM TASK 70-40-11-911-010).
Subtask 75-31-42-420-060-A ** ON A/C NOT FOR ALL
E. Connect the Servo Extend Fuel Tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Lubricate the new AIPC 75-31-42-80-050 SEALING RING (7) with the clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010).
   (2) Install the sealing ring on the servo extend connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo extend fuel tube (6) to the servo extend connector.
   (4) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T (Ref. AMM TASK 70-40-11-911-010).
   (5) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) .
   (6) Apply clean the V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) (Ref. AMM TASK 70-40-11-911-010) to the threads and the mating faces on the bolts (82) and (91).
   (7) Install the clips (93) and (95), two washers (92), bolt (91) and nut (94) at Detail G.
   (8) Make sure that the clip nut (84) is installed in position on the bracket (83).
   (9) Install the clips (85) and (86), washer (81) and bolt (82) at Detail F.
   (10) TORQUE the bolts (91) and (82) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T.
Subtask 75-31-42-420-061-A ** ON A/C NOT FOR ALL
F. Connect the servo fuel supply tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL

PRE SBE 73-0104

   (1) Lubricate the new AIPC 75-31-42-80-040 SEALING RING (8) with clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010).
   (2) Install the sealing ring on the servo supply connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo supply tube (9) to the servo supply connector.
   (4) TORQUE the tube coupling nut to between 475 and 425 lbf.in (5.37 and 4.80 m.daN ) T (Ref. AMM TASK 70-23-13-911-010) .
   (5) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-30-00-918-010) and (Ref. AMM TASK 70-40-11-911-010).
   (6) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolt (56).
   (7) Install the clip (55), the two washers (53), the spacer (51), the bolt (56) and the nut (52) at Detail D.
   (8) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T.
Subtask 75-31-42-420-062-A ** ON A/C NOT FOR ALL
G. Connect the servo fuel supply tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL

SBE 73-0104: Introduction of revised clipping for the HP Servo external fuel tube assembly

   (1) Lubricate the new AIPC 75-31-42-80-040 SEALING RING (8) with clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010).
   (2) Install the sealing ring on the servo supply connector of actuator (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo supply tube (9) to the servo supply connector.
   (4) TORQUE the tube coupling nut to between 475 and 425 lbf.in (5.37 and 4.80 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
WARNING: USE 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.
   (5) Safety the nut with lockwire (Material No.V02-147) lockwire (Material No.V02-126) (Ref. AMM TASK 70-30-00-918-010) and (Ref. AMM TASK 70-40-11-911-010).
   (6) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolt (56).
   (7) Install the clip (55), washer (53), spacer (51), bolt (56) and nut (52) at detail D.
   (8) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T.

END OF POST SBE 73-0104

Subtask 75-31-42-420-069-A ** ON A/C NOT FOR ALL
H. Connect the servo fuel supply tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL

SBE 75-0081: Introduction of revised clipping for the HP servo external fuel tube assembly and EBU harness.

   (1) Lubricate the new AIPC 75-31-42-80-040 SEALING RING (8) with clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010).
   (2) Install the sealing ring on the servo supply connector of actuator (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo supply tube (9) to the servo supply connector.
   (4) TORQUE the tube coupling nut to between 475 and 425 lbf.in (5.37 and 4.80 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
WARNING: USE 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.
   (5) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-30-00-918-010) and (Ref. AMM TASK 70-40-11-911-010).
   (6) Apply clean V10-077lubricant (engine oil) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolt (56).
   (7) Install the bolt (56), washer (53) and clip (57) which attaches to EBU harness, the spacer (58) and (51) and the nut (52), which attach the clip (55) to the raceway (54) at detail D.
   (8) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T.

END OF POST SBE 75-0081

Subtask 75-31-42-420-063-A ** ON A/C NOT FOR ALL
I. Connect the servo return fuel tube.
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Connect the servo return fuel tube (11).
Pre SBE 73-0116
     (a) Lubricate the new AIPC 75-31-42-80-050 SEALING RING (10) with clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010).
     (b) Install the sealing ring on the servo return connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
     (c) Connect the servo return fuel tube (11) to the servo return connector.
     (d) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
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.
     (e) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-010).
     (f) Apply clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolts (63) and (45).
     (g) Install the clips (64) and (66), the two washers (62), the spacer (65), the bolt (63) and the nut (61) as shown in detail E.
     (h) Install the clip (41), washer (44), bolt (45) and nut (42) as shown in detail C.
     (i) TORQUE the bolts (63) and (45) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
   (2) Connect the servo return fuel tube (11).
SBE 73-0116: Revised external fuel tube
     (a) Lubricate the new AIPC 75-31-42-80-050 SEALING RING (10) with clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010).
     (b) Install the sealing ring on the servo return connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
     (c) Connect the servo return fuel tube (11) to the servo return connector.
     (d) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
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.
     (e) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-010).
     (f) Apply clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolts (66) and (45).
     (g) Install the clip (70), washers (68), spacer (67), bolt (66) and nut (69) as shown in detail E.
     (h) Install the clip (41), washer (44), bolt (45) and nut (42) as shown in detail C.
     (i) TORQUE the bolts (66) and (45) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
   (3) Connect the servo return fuel tube (11).
SBE 75-0081: Revised clipping point CP5747
     (a) Lubricate the new AIPC 75-31-42-80-050 SEALING RING (10) with clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010).
     (b) Install the sealing ring on the servo return connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
     (c) Connect the servo return fuel tube (11) to the servo return connector.
     (d) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
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.
     (e) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-010).
     (f) Apply clean approved engine oils (Material No.V10-077) (Ref. AMM TASK 70-30-00-918-010) to the threads and mating faces on the bolts (66) and (45).
     (g) Install the bolt (66), washer (68), clip (73), spacers (71) and (67), and nut (69) which attach the clip (70) to the servo supply fuel tube as shown in detail E.
     (h) Install the clip (41), washer (44), bolt (45) and nut (42) as shown in detail C.
     (i) TORQUE the bolts (66) and (45) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
Subtask 75-31-42-420-064-A ** ON A/C NOT FOR ALL
J. Connect the drain tube
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Connect the drain tube (3) to the seal drain connector of the actuator.
   (2) TORQUE the tube coupling nut to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ) T (Ref. AMM TASK 70-23-13-911-010).
   (3) Safety the nut with lockwire (Material No.V02-147) or lockwire (Material No.V02-126) (Ref. AMM TASK 70-30-00-918-010) (Ref. AMM TASK 70-40-11-911-010).
Subtask 75-31-42-420-065-A ** ON A/C NOT FOR ALL
K. Connect the electrical connectors (Ref. AMM TASK 70-23-15-912-010)
F LPC Bleed-Master Actuator ** ON A/C NOT FOR ALL
   (1) Connect the electrical connector 4021KS-B (2) to the actuator.
   (2) Connect the electrical connector 4021KS-A (1) to the actuator.
5. Close-up
Subtask 75-31-42-410-052-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL, 452AR.
     (b) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
Subtask 75-31-42-440-051-A ** ON A/C NOT FOR ALL
B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).
Subtask 75-31-42-410-053-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR.
     (b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
Subtask 75-31-42-790-051-A ** ON A/C NOT FOR ALL
D. Tests
   (1) Do an idle leak check (Ref. AMM TASK 71-00-00-710-012).
NOTE: A dry motor leak check (Ref. AMM TASK 71-00-00-710-045) may be used to check for leaks, but this must be followed by an idle leak check (Ref. AMM TASK 71-00-00-710-012).
   (2) Do a high power assurance test (Ref. AMM TASK 71-00-00-710-013).
[Rev.10 from 2021] 2026.04.01 13:00:28 UTC
"Aviabrain" 2025