Installation of the Terminal Block (Pylon Side)

TASK 24-21-62-400-802-A
Installation of the Terminal Block (Pylon Side)

WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

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.

ZONE: 430
ZONE: 440
FIN: 3050VT1
FIN: 3050VT2

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 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 124 and 106 lbf.in (1.40 and 1.20 m.daN )
No specific	Torque wrench: range to between 0.11 and 0.09 m.daN (9.73 and 7.96 lbf.in )
No specific	Torque wrench: range to between 0.79 and 0.68 m.daN (69.91 and 60.18 lbf.in )
No specific	Torque wrench: range to between 1.90 and 1.63 m.daN (14.01 and 12.02 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
430	ENG 1 AIR INTAKE, FAN AND ACCESS GEARBOX
440	ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 71-00-00-860-827-A	Start the Engine (Normal Automatic Start)
TASK 71-00-00-860-829-A	Engine Shutdown
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
Terminal Block (Pylon Side)

3. Job Set-up
Subtask 24-21-62-941-052-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch is in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to operate:

The ENG/MODE selector switch, and
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to energize FADEC 1(2).

Subtask 24-21-62-865-051-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-62-010-052-A

C. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)

437AL and 438AR

(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)

447AL and 448AR.

(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position on the left side of the engine.

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

(3) Installation of the protection covers:
(a) Make sure that the COVER - PROTECTION is(are) in position on the openings of the engine.

Subtask 24-21-62-040-051-A

D. Deactivation of the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the thrust reverser is unserviceable for maintenance (Ref. AMM D/O 78-30-00-48).

4. Procedure
Subtask 24-21-62-420-052-A

A. Installation of the Terminal Block (Pylon Side)

CAUTION: REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(1) Lubricate the threads of the bolts (3) with engine oil (Material No.CP2442) .
(2) Put the terminal block (8) in position on the support bracket (4).
(3) Install the bolts (3) on the support bracket (4) to attach the terminal block (8).
(4) TORQUE the bolts (3) to between 124 and 106 lbf.in (1.40 and 1.20 m.daN )

.
(5) Connect the set of power feeder cables (7) as follows:
(a) Carefully engage the set of power feeder cables (7) on the top half of the bar clamp (6).
(b) Put the ends of the set of power feeder cables (7) on the studs of the terminal block (8).

NOTE: The identification numbers on the power feeder cables (7) must align with the identification numbers on the terminal block (8).

(c) Install the nuts (9) to connect the set of power feeder cables (7) to the terminal block (8).
(d) Make sure that the bar clamp (6) is in the correct position on the support bracket (4).
(e) Tighten the bolts (5) to attach the bar clamp (6) to the support bracket (4).
(f) Torque the nuts (9) to between 1.90 and 1.63 m.daN (14.01 and 12.02 lbf.ft )

.
(g) Torque the bolts (5) to between 0.79 and 0.68 m.daN (69.91 and 60.18 lbf.in )

.
(6) Install the terminal block cover (1) as follows:
(a) Lubricate the threads of the terminal block cover-screws (2) with engine oil (Material No.CP2442) .
(b) Put the terminal block cover (1) in position on the terminal block (8).
(c) TORQUE the terminal block cover-screws (2) to between 0.11 and 0.09 m.daN (9.73 and 7.96 lbf.in )

Subtask 24-21-62-440-050-A

B. Reactivation of the Thrust Reverser

(1) Make the thrust reverser serviceable after maintenance (Ref. AMM D/O 78-30-00-08).

Subtask 24-21-62-410-053-A

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.

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

(2) Removal of the protection covers:
(a) Remove the COVER - PROTECTION from the openings of the engine.
(3) Remove the access platform (s).
(4) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL and 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL and 448AR.

Subtask 24-21-62-710-052-A

D. Test
(1) Remove the warning notice(s).
(2) Do the Electronic Instrument System (EIS) start procedure (upper and lower ECAM Display Units (DU) only) (Ref. AMM TASK 31-60-00-860-001).
(3) Start the engine (Normal Automatic Start) (Ref. AMM TASK 71-00-00-860-827).
(a) Let the engine become stable at the minimum idle position for five minutes.
(4) Make sure that IDG 1(2) operates correctly.
(a) On the ECAM control panel, push the ELEC key to get access to the "ELEC" page:

Make sure that the voltage of IDG 1(2) is 115VAC.
Make sure that the frequency of IDG 1(2) is 400Hz (+/- 5Hz).

(5) Stop the engine (Ref. AMM TASK 71-00-00-860-829).

Subtask 24-21-62-865-052-A

E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

5. Close-up
Subtask 24-21-62-410-052-A

A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).

[Rev.10 from 2021] 2026.03.31 23:21:53 UTC