Removal of the Interconnecting Cables

TASK 36-22-18-000-802-A
Removal of the Interconnecting Cables

ZONE: 140
FIN: 90HF ** ON A/C NOT FOR ALL
FIN: 91HF ** ON A/C NOT FOR ALL
FIN: 92HF ** ON A/C NOT FOR ALL
FIN: 93HF ** 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	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
140	CENTER WING
FOR [90HF] (INTERCONNECTING CABLE)
FOR [91HF] (INTERCONNECTING CABLE)
191BB, 191EB
FOR [92HF] (INTERCONNECTING CABLE)
FOR [93HF] (INTERCONNECTING CABLE)
192EB, 192FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-33-21-618-001-A	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Available)
TASK 12-33-21-618-001-A-01	Pre-conditioning through the HP Ground Connection
TASK 12-33-21-618-001-A-02	Pre-conditioning with the APU
TASK 12-33-21-618-001-A-03	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Not Available)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
Interconnecting Cables

3. Job Set-up
Subtask 36-22-18-861-051-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 36-22-18-860-053-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Put the WARNING NOTICE(S) in position:

in the cockpit on Engine Control Panel 115VU to tell persons not to start the engine(s)
in the cockpit on ENG Man Panel 22VU to tell persons not to manual start the engine(s)
in the cockpit on AIR COND Overhead Control Panel 30VU to tell persons not to push in the APU BLEED pushbutton switch
on the High Pressure (HP) ground connector to tell persons not to pressurize the system.

NOTE: For the location and access of the HP ground connector, refer to (Ref. AMM TASK 12-33-21-618-001).

Subtask 36-22-18-865-055-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
** ON A/C NOT FOR ALL
49VU	AIR BLEED/X FEED/VALVE/BAT	2HV	D13
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 2/MONG	3HA2	D12
49VU	AIR BLEED/ENG 1/CTL	2HA1	D11
** ON A/C NOT FOR ALL
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22
** ON A/C NOT FOR ALL
122VU	AIR BLEED/X FEED VALVE/NORM	1HV	Z20
** ON A/C NOT FOR ALL
122VU	AIR BLEED/ENG 1/MONG	3HA1	Z23
122VU	AIR BLEED/ENG 2/CTL	2HA2	Z22

Subtask 36-22-18-010-052-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the related access panels.
(2) Remove the applicable access panels:
(a) FOR [90HF] (INTERCONNECTING CABLE), [91HF] (INTERCONNECTING CABLE)
remove 191BB and 191EB.
(b) FOR [92HF] (INTERCONNECTING CABLE), [93HF] (INTERCONNECTING CABLE)
remove 192EB and 192FB.

4. Procedure
Subtask 36-22-18-020-052-A ** ON A/C NOT FOR ALL

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.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

A. Removal of the Interconnecting Cables

NOTE: Do the procedure carefully. Do not cause any damage to the interconnecting cables and sensing elements.

(1) Cut and remove the lockwires from the nuts (2) and the sockets (4).
(2) Discard the lockwires.
(3) Loosen the union nuts (1).
(4) Remove and keep the nuts (2) and the washers (3).
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(6) Loosen the camlocs (6) and open the clamps (7).
(7) Remove the interconnecting cables with the attached grommets (8).
(8) Remove the grommets (8) from the interconnecting cables and keep them.

Subtask 36-22-18-020-052-B ** ON A/C NOT FOR ALL

A. Removal of the Interconnecting Cables

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

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) Make sure that you do not cause damage to the interconnecting cables and the sensing elements when you do this procedure.

(2) Cut and remove the lockwires from the nuts (2) and the sockets (4).
(3) Discard the lockwires.
(4) Loosen the union nuts (1) and the nuts (2).
(5) Remove the union nuts (1), the nuts (2) and the washers (3) and keep them.
(6) Remove the sockets (4) from the brackets (5).
(7) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(8) Loosen the camlocs (6) and open the clamps (7).
(9) Remove the interconnecting cables together with the grommets (8).
(10) Remove the grommets (8) from the interconnecting cables and keep them.

[Rev.10 from 2021] 2026.04.01 01:17:29 UTC