Installation of the Pylon Power Feeder-Cables

TASK 24-92-00-400-802-A
Installation of the Pylon Power Feeder-Cables

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

ZONE: 413
ZONE: 414
ZONE: 423
ZONE: 424
ZONE: 451
ZONE: 461

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	ACCESS PLATFORM 1M(3 FT)
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	COVER - PROTECTION
No specific	Torque wrench: range to between 8.80 and 8.00 lbf.in (0.10 and 0.09 m.daN )
No specific	Torque wrench: range to between 212 and 195 lbf.in (2.40 and 2.20 m.daN )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
413	UPPER FWD PYLON
414	UPPER FWD PYLON
423	UPPER FWD PYLON
424	UPPER FWD PYLON
451	THRUST REVERSER
461	THRUST REVERSER
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413BT, 437AL, 438AR, 451AL
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423BT, 447AL, 448AR, 461AL

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 54-52-11-000-805-A	Removal of the Access Skin Panels
TASK 54-52-11-400-805-A	Installation of the Access Skin Panels
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
ESPM 204452
Pylon Power Feeder-Cables

3. Job Set-up
Subtask 24-92-00-941-069-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 24-92-00-010-181-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position on the right side of the engine.
(2) Make sure that the access panel is removed (Ref. AMM TASK 54-52-11-000-805):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413BT
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423BT
(3) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR

Subtask 24-92-00-040-054-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser System for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 24-92-00-010-182-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Make sure that left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-010-802) is open:
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
(3) Make sure that the engine protection covers are installed.

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

(a) Make sure that the COVER - PROTECTION are in position to prevent damage to the engine.

4. Procedure
Subtask 24-92-00-420-054-A ** ON A/C NOT FOR ALL

A. Installation of the Pylon Power Feeder-Cables
(1) Connect the four pylon power feeder-cables (2) to the upper forward pylon-interface terminal-block (34).
(a) Install the four pylon power feeder-cables (2) through the hole in the pylon.
(b) Connect the four pylon power feeder-cables (2) to the terminal block studs.
1 Connect the white cable (neutral) to stud 4.
2 Connect the red cable (A phase) to the stud 1.
3 Connect the yellow cable (B phase) to stud 2.
4 Connect the blue cable (C phase) to stud 3.
(c) Connect the eight wing power feeder-cables (40) to the terminal block studs on the four pylon power feeder-cables (2).
(d) Install the four nuts (38) and spring washers (39) on the terminal block studs.
(e) Tighten the four nuts (38) ESPM 204452.
(f) Install the two bolts (36) and cover (35) on the shield.
(g) Tighten the two bolts (36) ESPM 204452.
(h) Installation of 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.

1 Install the lockwire (37) on the cover (35).
(i) Engage the four pylon power feeder-cables (2) into the two clamps (31).
(j) Install the two clamps (31) on the support bracket with the washers (32) and bolts (33).
(k) Tighten the bolts (33).
(l) Engage the four pylon power feeder-cables (2) into the two clamps (28).
(m) Install the two clamps (28) with the two washers (29) and bolts (30) on the clip nuts (28).
(n) Tighten the two bolts (30).
(o) Attach the four pylon power feeder-cables (2) to the support bracket (25) with the two screws (27) and washers (26).
(p) Connect the four pylon power feeder-cables (2) to the pylon-interface terminal studs:
1 Connect the white cable (neutral) to stud 4.
2 Connect the red cable (A phase) to stud 1.
3 Connect the yellow cable (B phase) to stud 2.
4 Connect the blue cable (C phase) to stud 3.
(q) Connect the four IDG power feeder-cables (3) to the pylon-interface terminal studs on the four pylon power feeder-cables (2):
1 Connect the white cable (neutral) to stud 4.
2 Connect the red cable (A phase) to stud 1.
3 Connect the yellow cable (B phase) to stud 2.
4 Connect the blue cable (C phase) to stud 3.
5 Install the four spring washers (4) and nuts (5) on the four pylon power feeder-cables (2).
6 TORQUE the four nuts (5) to between 212 and 195 lbf.in (2.40 and 2.20 m.daN )

.
(r) Attach the cover (8) with the two bolts (6).
(s) TORQUE the two bolts (6) to between 8.80 and 8.00 lbf.in (0.10 and 0.09 m.daN )

.
(t) Installation of the lockwire

1 Install the lockwire (7) on the cover (8).
(u) Engage the four pylon power feeder-cables (2) into the block clamp (22).
(v) Put the block clamp (22) between the plates (21) and (23).
(w) Attach the plates (21) and (23) to the support bracket with the two bolts (19), washers (20) and nuts (24).
(x) Tighten the two nuts (24).
(y) Engage the four pylon power feeder-cables (2) into the block clamp (15).
(z) Put the block clamp (15) between the plates (14) and (16).
(aa) Attach the plates (14) and (16) to the support bracket (13) with the two bolts (18) and washers (17).
(ab) Tighten the two bolts (18).
(ac) Engage the four pylon power feeder-cables (2) into the block clamp (9).
(ad) Put the plate (10) on the block clamp (9).
(ae) Attach the plate (10) to the support bracket with the two bolts (12) and washers (11).
(af) Tighten the two bolts (12).
(ag) Examine the assembly for foreign objects, damage and correct assembly.

Subtask 24-92-00-410-188-A ** ON A/C NOT FOR ALL

B. Put the aircraft back to its initial configuration.
(1) Removal of the engine protection covers

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

(a) Remove all the COVER - PROTECTION.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

Subtask 24-92-00-440-053-A ** ON A/C NOT FOR ALL

C. Reactivation of the Thrust Reverser System after Ground Maintenance
(1) Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 24-92-00-410-189-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Install the access panel that follow (Ref. AMM TASK 54-52-11-400-805):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413BT
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423BT
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 24-92-00-710-054-A ** ON A/C NOT FOR ALL

E. Test
(1) Energize the aircraft electrical circuits from the engine 1(2) (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that IDG1(2) operates correctly:
(a) On the ECAM control panel, push the ELEC key to get the ELEC page on the lower ECAM DU:

Make sure that the voltage of the IDG1(2) is 115VAC.
Make sure that the frequency of the IDG1(2) is 400Hz plus or minus 5Hz.

(3) De-energize the aircraft electrical circuits supplied from the engine 1(2) (Ref. AMM TASK 24-41-00-862-002).

5. Close-up
Subtask 24-92-00-942-061-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 12:38:28 UTC