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

TASK 75-31-43-400-010-B
Installation of the Low Pressure Compressor (LPC) Bleed-Slave Actuator

WARNING: BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES. IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER. IF NECESSARY, GET MEDICAL HELP. AIRCRAFT FUEL IS POISONOUS.

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	AR	ACCESS PLATFORM 1M(3 FT)
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 )
No specific	Torque wrench: range to between 60 and 50 lbf.in (0.68 and 0.57 m.daN )
No specific	Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
No specific	Torque wrench: range to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
No specific	Torque wrench: range to between 360 and 330 lbf.in (4.07 and 3.73 m.daN )

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
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 447AL, 448AR, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
35	KEY WASHER	AIPC 75-31-43-80-020
23	SEALING RING	AIPC 75-31-43-80-060
24	SEALING RING	AIPC 75-31-43-80-060

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-40-11-911-014-A	Locking Devices General Information
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
LPC Bleed - Slave Actuator
LPC Bleed - Slave Actuator

3. Job Set-up
Subtask 75-31-43-860-051-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).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 75-31-43-010-055-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM1] (ENGINE-1)
447AL 448AR
(2) Make sure that the right thrust reverser half is open (Ref. AMM TASK 78-32-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
452AR
(b) FOR [1000EM2] (ENGINE-2)
462AR

Subtask 75-31-43-040-053-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 75-31-43-630-051-A ** ON A/C NOT FOR ALL

D. Remove the covers/caps/plugs from the openings.

Subtask 75-31-43-110-051-A ** ON A/C NOT FOR ALL

E. Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with V01-124Isopropyl Alcohol, Technical grade, to clean the LPC bleed-slave actuator mounting pad on the actuator bracket (39).

LPC Bleed - Slave Actuator ** ON A/C NOT FOR ALL

Subtask 75-31-43-210-051-A ** ON A/C NOT FOR ALL

F. Make sure that the mounting pad has no damage.

4. Procedure
Subtask 75-31-43-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the LPC Bleed-Slave Actuator
(1) Install the slave actuator.
(a) Apply clean V10-077lubricant (engine oil) to the threads and mating faces of the bolts (32) and (41).
(b) Align the two guide pin holes in the actuator mounting flange with the two guide pins (38) on the actuator bracket (39).
(c) Attach the LPC bleed-slave actuator (31) and the bracket (40) to the actuator bracket (39) with the bolts (32) and (41).
(d) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(2) Connect the slave actuator to the bleed valve actuating rod.
(a) Apply clean V10-077lubricant (engine oil) to the threads and mating faces of the bolt (34).
(b) Connect the fork end (36) to the actuating rod (37) with the double AIPC 75-31-43-80-020 KEY WASHER (35) and the bolt (34).

NOTE: Make sure that the bent tab of the key washer is engaged with a recess (33) in the fork end.

(Ref. AMM TASK 70-23-11-911-013).
(d) Bend the double keys of the key washer (35) to safety the bolt (34) in position (Ref. AMM TASK 70-40-11-911-014).
(3) Connect the servo extend tube.
(a) Lubricate a new AIPC 75-31-43-80-060 SEALING RING (24) with clean V10-077lubricant (engine oil).
(b) Install a new sealing ring (24) on the servo extend connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
(c) Connect the servo extend tube (21) to the servo extend connector.
(d) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(e) Safety the tube coupling nut with lockwire (Material No.V02-126) or lockwire (Material No.V02-147) (Ref. AMM TASK 70-40-11-911-014).
(4) Connect the servo retract fuel tube.
(a) Lubricate a new AIPC 75-31-43-80-060 SEALING RING (23) with clean V10-077lubricant (engine oil).
(b) Install the new sealing ring (23) on the servo retract connector of the actuator (Ref. AMM TASK 70-23-13-911-010).
(c) Connect the servo retract fuel tube (22) to the servo retract connector.
(d) TORQUE the tube coupling nut to between 360 and 330 lbf.in (4.07 and 3.73 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(e) Safety the tube coupling nut with lockwire (Material No.V02-126) or lockwire (Material No.V02-147) (Ref. AMM TASK 70-40-11-911-014).
(f) Apply clean V10-077lubricant (engine oil) to the threads and mating faces of the bolts (62), (72) and (51).
(g) Make sure that the clipnut (64) is installed in position on the bracket (65).
(h) Install the clip (63), the washer (61), the spacer (66) and the bolt (62) at Detail E. Clipping point 5775.
(i) Install the clips (71) and (75), the two washers (74), the bolt (72) and the nut (73) at detail D. Clipping point 5769.
(j) Make sure that the clipnut (56) is installed in position on the bracket (57).
(k) Install the clips (53) and (54), the washer (52), the spacer (55) and the bolt (51) at Detail C. Clipping point 5673.
(l) TORQUE the bolts (62), (72) and (51) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(5) Connect the seal drain fuel tube.
(a) Connect the seal drain fuel tube (25) to the seal drain connector of the actuator.
(b) TORQUE the tube coupling nut to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(c) Safety the tube coupling nut with lockwire (Material No.V02-126) or lockwire (Material No.V02-147) (Ref. AMM TASK 70-40-11-911-014).
(6) Attach the clamp to the bracket.
Pre SBE 75-0035
(a) Make sure that the clip nut (3) is installed in position on the bracket.
(b) Apply clean V10-077lubricant (engine oil) to the threads and mating faces on the bolt (6).
(c) Align the bolt hole in the clamp (4) with the clip nut (3) and safety the clamp with the bolt (6) and the washer (5). Clipping point 5560.
(d) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(7) Attach the clamp to the bracket
SBE 75-0035
(a) Make sure that the clip nut (16) is installed in position on the bracket.
(b) Apply clean V10-077lubricant (engine oil) to the threads and mating faces on the bolt (12).
(c) Align the bolt hole in the clamp (13) with the clip nut (16) and safety the clamp with the bolt (12). Clipping point 5560.
(d) TORQUE the bolt to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
END of SBE 75-0035
(8) Connect the air inlet hoses to the ignition cooler boxes.
(a) Connect the air inlet hoses (2) and (8) to the connection of the cooler boxes (11) and (10).
(b) Put the hose clamps (1) and (9) into position.
(c) Tighten the hose clamp screws by hand.

5. Close-up
Subtask 75-31-43-410-052-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 right thrust reverser half (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
452AR
(b) FOR [1000EM2] (ENGINE-2)
462AR

Subtask 75-31-43-440-051-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 75-31-43-410-053-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 75-31-43-790-051-A ** ON A/C NOT FOR ALL

D. For Test Requirements
(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 03:11:51 UTC