Removal of the Battery

TASK 24-38-51-000-001-A
Removal of the Battery

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THIS EQUIPMENT. THIS EQUIPMENT IS HEAVY (MORE THAN 12 KG (26.5 lb)) AND CAN CAUSE INJURY AND/OR DAMAGE.

WARNING: BEFORE YOU REMOVE OR INSTALL THE BATTERY, MAKE SURE THAT CIRCUIT BREAKERS 5PB1, 5PB2, 12PB1 AND 12PB2 ARE OPEN, SAFETIED AND TAGGED. IF YOU DO NOT OBEY THIS INSTRUCTION, A SHORT CIRCUIT CAN OCCUR. THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO THE EQUIPMENT.

ZONE: 126
FIN: 2PB1
FIN: 2PB2

1. Reason for the Job

NOTE: Two persons are necessary to do this task.

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	CAP - BLANKING
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
126	LATERAL AVIONIC COMPARTMENT
812, 822

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Battery ** ON A/C NOT FOR ALL
Battery ** ON A/C NOT FOR ALL
Battery ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 24-38-51-860-051-A

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(2) In the cockpit, on overhead panel 35VU, release these pushbutton switches:

BAT 1
BAT 2.

(3) In the cockpit, on overhead panel 35VU, put the WARNING NOTICE(S) in position to tell the persons not to operate the batteries.

Subtask 24-38-51-010-050-A

B. Get access to the avionics compartment.
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the avionics compartment doors 812 and 822.
(2) Open access doors 812 and 822.
(3) Open the access panels of AC/DC emergency power center 106VU and BATTERY power center 105VU.

Subtask 24-38-51-865-050-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 2PB1 (BAT1)
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
105VU	ELEC/CSM/G /EV AUTO/SPLY	7XE	C01
105VU	ELEC/HOT BUS/701PP SPLY	5PB1	D01
105VU	ELEC/HOT BUS/701PP SPLY	12PB1	E01
105VU	ELEC/BAT REF/BCL1	9PB1	F01
105VU	NAV/STBY/INST/BAT	23FN	J01
FOR FIN: 2PB2 (BAT2)
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	ADIRS/ADIRU1/28VDC	6FP1	C02
105VU	ELEC/HOT BUS/702PP SPLY	5PB2	D02
105VU	ELEC/HOT BUS/702PP SPLY	12PB2	E02
105VU	ELEC/BAT REF/BCL2	9PB2	F02
105VU	ELEC/STAT INV/CNTOR/CTL	14XB	G02
106VU	CSM/G /EV/MAN/SPLY	6XE	B04

4. Procedure
Subtask 24-38-51-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Battery

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

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.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(1) If installed, cut and remove the copper wire between the knurled nut (9) and the connector (10).
(2) Turn the knurled nut (9) to a quarter turn.
(3) Disconnect the connector (10).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Loosen the clamp (6) and disconnect the ventilation duct (5) from the battery (1).
(6) Remove the clamp (6) from the ventilation duct (5).
(7) Put the PLUG-BLANKING in each disconnected line end.
(8) Cut and remove the lockwire from the wing nuts (7).
(9) Loosen the wing nuts (7).
(10) Release the rods (2) that hold the battery (1).
(11) Remove the battery (1).
(12) Put the battery (1) into storage. Obey the battery manufacturer instructions.

Subtask 24-38-51-020-050-B ** ON A/C NOT FOR ALL

A. Removal of the Battery

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(1) Disconnect the electrical connector (11) as follows:
(a) Cut and discard the copper wire between the knurled nut (10) and the electrical connector (11).
(b) Turn the knurled nut (10) counterclockwise one quarter of a turn.
(c) Disconnect the electrical connector (11) from the battery (2).
(d) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(e) Safety the electrical connector (11) to the aircraft structure.
(2) Remove the ventilation duct (7) as follows:
(a) Loosen the clamp (6) and disconnect the ventilation duct (7) from the battery (2).
(b) Remove the clamp (6) from the ventilation duct (7).
(c) Put the PLUG-BLANKING in each disconnected line end.
(d) Safety the ventilation duct (7) to the aircraft structure.
(3) Remove the battery (2) as follows:
(a) Cut and discard the lockwire from the wing nuts (8) and the spacers (9).
(b) Loosen the wing nuts (8).
(c) Disengage the rods (3) from the slots of the support (1).
(d) Safety the rods (3) to the plate assembly (5).
(e) Remove the support (1) from the battery (2) and retain it for the subsequent installation.
(f) Remove the battery (2).
(g) Put the battery (2) in a storage. For this obey the battery manufacturer's instructions.

Subtask 24-38-51-020-050-C ** ON A/C NOT FOR ALL

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

A. Removal of the Battery

NOTE: The weight of the battery is approximately 28.22 kg (62.2144 lb).

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

(1) Disconnect the electrical connector (13) as follows:

(a) Cut and discard the lockwire between the knurled nut (12) and the electrical connector (13).
(b) Turn the knurled nut (12) counterclockwise one quarter of a turn.
(c) Disconnect the electrical connector (13) from the battery (2).
(d) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(e) Safety the electrical connector (13) to the aircraft structure.
(2) Disconnect the ventilation duct (7) as follows:
(a) Loosen the clamp (6) and disconnect the ventilation duct (7) from the battery (2).
(b) Remove the clamp (6) from the ventilation duct (7).
(c) Put the PLUG - BLANKING in the disconnected line end of the ventilation duct (7).
(d) Safety the ventilation duct (7) to the aircraft structure.
(3) Remove the battery (2) as follows:

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Remove and discard the cotter pins (11) from the rods (4).

(b) Cut and discard the lockwire from the wing nuts (8) and the spacers (10).
(c) Remove the wing nuts (8), the washers (9) and the spacers (10).
(d) Disengage the rods (4) from the slots of the support (1).
(e) Safety the rods (4) to the plate assembly (5).
(f) Remove the support (1) from the battery (2) and retain it for the subsequent installation.
(g) Remove the battery (2) from the stops (3).
(h) Put the battery (2) in a storage. For this, obey the battery manufacturer's instructions.

Subtask 24-38-51-869-051-A

B. Make sure that there is no electrolyte leakage in the ventilation duct.

NOTE: If there is an electrolyte leakage, remove the duct, clean it and rinse it with water.

[Rev.10 from 2021] 2026.04.01 04:24:19 UTC