Installation of the Cargo Fire-Extinguisher Bottle

TASK 26-23-42-400-001-A
Installation of the Cargo Fire-Extinguisher Bottle

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: IF YOU REMOVE THE FIRE EXTINGUISHER BOTTLES IN A CLOSED HANGAR, MAKE SURE THAT THERE IS A FLOW OF NEW AIR IN THE HANGAR.

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

CAUTION: BEFORE YOU INSTALL/REMOVE THE GSE-TOOL, READ THE INSTRUCTIONS IN THE APPLICABLE GSE INSTRUCTION MANUAL. WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT OBEY THE INSTRUCTIONS, DAMAGE TO EQUIPMENT CAN OCCUR.

ZONE: 150
ZONE: 160
ZONE: 170
FIN: 4015WX ** ON A/C NOT FOR ALL
FIN: 4020WX ** ON A/C NOT FOR ALL

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	AR	ELECTRICALLY GROUNDED WRIST STRAP
No specific	Torque wrench: range to between 0.35 and 0.3 m.daN (30.97 and 26.55 lbf.in )
No specific	Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
No specific	Torque wrench: range to between 1.3 and 1.2 m.daN (115.04 and 106.19 lbf.in )
No specific	Torque wrench: range to between 1.79 and 1.38 m.daN (13.20 and 10.18 lbf.ft )
No specific	Torque wrench: range to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
No specific	Torque wrench: range to between 4.3 and 3.9 m.daN (31.71 and 28.76 lbf.ft )
No specific	Torque wrench: range to between 6.8 and 5.4 m.daN (50.15 and 39.82 lbf.ft )
No specific	Torque wrench: range to between 7.5 and 6.1 m.daN (55.31 and 44.98 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GEE1)	Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated -
(Material No.06AAC1)	Polysulfide Sealant-General Purpose Interfay -
(Material No.14QEB1)	Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14QGC1)	Wire-Locking Dia: 1 mm (0.041 inch) CRES -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
150	AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT
170	AFT CAB U/FLOOR COMPT AFT BHD OF BULK
826
161DW
162AW

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
12	LOCK WASHER	AIPC 26-23-04-02-080
11	LOCK WASHER	AIPC 26-23-04-07-090
12	LOCK WASHER	AIPC 26-23-04-07-090
11	WASHER	AIPC 26-23-04-07-175
11	LOCK WASHER	AIPC 26-23-84-07-245
12	LOCK WASHER	AIPC 26-23-84-07-245

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-55-12-000-001-A	Removal of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-000-003-A	Removal of the Sidewall Panels in the Aft Cargo Compartment - FR59/FR65
TASK 25-55-12-400-001-A	Installation of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-400-003-A	Installation of the Sidewall Panels in the Aft Cargo Compartment - FR59/FR65
TASK 26-16-00-710-001-A	Operational Check of Cargo Compartment Smoke Detection by PTT
TASK 26-23-00-200-005-A	Restoration of the Fire Extinguishing System (FES) after Activation
TASK 26-23-41-280-001-C	Remove Cargo Compartment Fire Extinguisher Bottle for in shop Weight Check.
TASK 26-23-42-400-004-A	Installation of the Cartridge of the Cargo Fire-Extinguisher Bottle
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 26-23-00-00	CARGO COMPARTMENT FIRE EXTINGUISHING - DESCRIPTION AND OPERATION
Cargo Fire-Extinguisher Bottle ** ON A/C NOT FOR ALL
Cargo Fire-Extinguisher Bottle ** ON A/C NOT FOR ALL
Cargo Fire-Extinguisher Bottle ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 26-23-42-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) If the installation of the cargo fire-extinguisher bottle is done after a discharge of the fire extinguishing agent:

Do the restoration of the fire extinguishing system after activation (Ref. AMM TASK 26-23-00-200-005).

(2) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(3) Before the installation of the cargo fire-extinguisher bottle, do the weight check of the bottle (Ref. AMM TASK 26-23-41-280-001).

NOTE: If the cargo fire-extinguisher bottle was weighed in a short time before this installation it is not necessary to weigh it again.

Subtask 26-23-42-010-053-A ** ON A/C NOT FOR ALL

B. Get Access
(1) For the location of this component, refer to Para. Component Location (Ref. AMM D/O 26-23-00-00).
(2) Make sure that the aft cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001).
(3) Make sure that the CARGO COMPT LIGHT switch 8LU is in the ON position.
(4) Make sure that the sidewall panel 162AW is removed (Ref. AMM TASK 25-55-12-000-003).
(5) Make sure that the cartridge is installed on the fire extinguisher bottle (Ref. AMM TASK 26-23-42-400-004).
(6) Make sure that the protective cap is installed on the cartridge.
(7) Clean the component interfaces and the adjacent area.
(8) Do an inspection of the component interfaces and the adjacent area.

Subtask 26-23-42-010-053-B ** ON A/C NOT FOR ALL

B. Get Access
(1) For the location of this component, refer to Para. Component Location (Ref. AMM D/O 26-23-00-00).
(2) Make sure that the aft cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001).
(3) Make sure that the CARGO COMPT LIGHT switch 8LU is in the ON position.
(4) Make sure that the partition panel 161DW is removed (Ref. AMM TASK 25-55-12-000-001).
(5) Make sure that the cartridge is installed on the fire extinguisher bottle (Ref. AMM TASK 26-23-42-400-004).
(6) Make sure that the protective cap is installed on the cartridge.
(7) Clean the component interfaces and the adjacent area.
(8) Do an inspection of the component interfaces and the adjacent area.

Subtask 26-23-42-865-051-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C04
49VU	AIR COND/CARGO FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
122VU	AIR COND/CARGO/FIRE/EXTIG	1WX	T19

4. Procedure
Subtask 26-23-42-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Cargo Fire-Extinguisher Bottle
(1) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) to the upper brackets of the fire extinguisher bottle (1).
(2) Install the fire extinguisher bottle (1) as follows:

WARNING: BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

CAUTION: IF YOU MUST MOVE THE TOOL IN THE AIRCRAFT, BE CAREFUL NOT TO DAMAGE THE PEEL SHIMS OF THE SUPPORTS OF THE ADIRU MOUNT.

(a) Hold the fire extinguisher bottle (1) in its correct installation position on the structure (16).
(b) Install the bolts (6) and the nuts (17).
(c) Tighten the nuts (17).
(3) Remove the blanking plugs from:

The disconnected line ends
The safety relief valve (7)
The discharge heads (19).

(4) Make sure that the discharge heads (19) are aligned with the flexible hoses (4).
(5) TORQUE the coupling nuts (18) to between 6.8 and 5.4 m.daN (50.15 and 39.82 lbf.ft )

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.

(6) Safety the coupling nuts (18) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

CAUTION: APPLY A SMALL QUANTITY OF THE CORRECT GREASE TO THE MALE THREADS OF THE CONNECTIONS. THIS WILL PREVENT DAMAGE TO THE THREADS. MAKE SURE THAT GREASE DOES NOT GO INTO THE PIPES. GREASE IN THE PIPES CAN CAUSE A MALFUNCTION OF THE SYSTEM.

(7) Apply a small quantity of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the male threads of the safety relief valve (7) and the discharge heads (19).
(8) Connect the flexible hose (14) to the safety relief valve (7).
(9) TORQUE the nut (15) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(10) Connect the flexible hoses (4) to the discharge heads (19).
(11) TORQUE the nuts (5) to between 4.3 and 3.9 m.daN (31.71 and 28.76 lbf.ft )

.
(12) Install the bonding straps (24) and the nuts (23) on the ground lug bolts (25) (Ref. AMM TASK 20-28-00-912-802).
(13) TORQUE the nuts (23) to between 0.35 and 0.3 m.daN (30.97 and 26.55 lbf.in )

.
(14) Make sure that you are grounded with the ELECTRICALLY GROUNDED WRIST STRAP.

(15) Safety the cartridges (22) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

WARNING: BEFORE YOU TOUCH THE POWER DEVICE CARTRIDGE, MAKE SURE THAT YOU ARE GROUNDED AND THAT YOU INSTALL A SHUNT DEVICE ON IT. USE A CAP OR PLUG AS SHUNT DEVICE (THE CAP OR PLUG WILL SHUNT THE PINS TOGETHER ON THE CARTRIDGE). DO NOT USE A FOIL SHUNT. IF YOU TOUCH A POWER DEVICE CARTRIDGE THAT DOES NOT HAVE A SHUNT DEVICE INSTALLED, AN EXPLOSION CAN OCCUR AND CAUSE INJURIES TO YOU.

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.

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.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL WIRE(S).

(16) Connect the electrical connectors (2) and (21) as follows:
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.
(b) Remove the protective caps (20) from the cartridges (22).
(c) Connect the electrical connectors (21) to the cartridges (22).
(d) Connect the electrical connector (2) to the pressure switch (3).

(17) Safety the electrical connectors (21) with 14QEB1Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -.
(18) Put the eye-end of the tie-rod (10) in position between the lugs of the fire extinguisher bottle (1).
(19) If necessary, adjust the tie-rod as follows:
(a) Loosen the lock nut (11) and remove the eye-end of the tie-rod (10) from the rod-end (13).
(b) Remove and discard the lock washer (12).
(c) Install the new AIPC 26-23-04-02-080 LOCK WASHER (12) and the eye-end of the tie-rod (10) on the rod-end (13).
(d) Adjust the tie-rod (10) until the bolt (9) goes through the eye-end of the tie-rod (10) and the lugs of the fire extinguisher bottle (1).
(e) Tighten the lock nut (11).
(f) Safety the lock nut (11) with the lock washer (12).
(20) Install the bolt (9) and the nut (8).

Subtask 26-23-42-420-050-C ** ON A/C NOT FOR ALL

WARNING: BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

(a) Hold the fire extinguisher bottle (1) in its correct installation position on the structure (16).
(b) Install the bolts (6) and the nuts (17).
(3) Remove the blanking plugs from:

The disconnected line ends
The safety relief valve (7)
The discharge heads (19).

(4) Make sure that the discharge heads (19) are aligned with the flexible hoses (4).
(5) If the discharge heads (19) are not aligned, do the steps that follow:

(a) Remove and discard the lockwire.
(b) Loosen the coupling nuts (18).
(c) Align the discharge heads (19) with the flexible hoses (4).
(d) TORQUE the coupling nuts (18) to between 6.8 and 5.4 m.daN (50.15 and 39.82 lbf.ft )

.
(e) Safety the coupling nuts (18) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

(6) Apply a small quantity of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the male threads of the safety relief valve (7) and the discharge heads (19).
(7) Connect the flexible hose (14) to the safety relief valve (7).
(8) TORQUE the nut (15) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(9) Connect the flexible hoses (4) to the discharge heads (19).
(10) TORQUE the nuts (5) to between 4.3 and 3.9 m.daN (31.71 and 28.76 lbf.ft )

.
(11) Install the bonding straps (24) and the nuts (23) on the ground lug bolts (25) (Ref. AMM TASK 20-28-00-912-802).
(12) TORQUE the nuts (23) to between 0.35 and 0.3 m.daN (30.97 and 26.55 lbf.in )

.
(13) Make sure that you are grounded with the ELECTRICALLY GROUNDED WRIST STRAP.

(14) Safety the cartridges (22) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

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.

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.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL WIRE(S).

(15) Connect the electrical connectors (2) and (21) as follows:
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.
(b) Remove the protective caps (20) from the cartridges (22).
(c) Connect the electrical connectors (21) to the cartridges (22).
(d) Connect the electrical connector (2) to the pressure switch (3).

(16) Safety the electrical connectors (21) with 14QEB1Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -.
(17) Put the eye-end of the tie-rod (10) in position between the lugs of the fire extinguisher bottle (1).
(18) If necessary, adjust the tie-rod as follows:
(a) Loosen the lock nut (11) and remove the eye-end of the tie-rod (10) from the rod-end (13).
(b) Remove and discard the lock washer (12).
(c) Install the new AIPC 26-23-04-07-090 LOCK WASHER (12) or AIPC 26-23-84-07-245 LOCK WASHER (12) and the eye-end of the tie-rod (10) on the rod-end (13).
(d) Adjust the tie-rod (10) until the bolt (9) goes through the eye-end of the tie-rod (10) and the lugs that are on the fire extinguisher bottle (1).
(e) Tighten the lock nut (11).
(f) Safety the lock nut (11) with the lock washer (12).
(19) Install the bolt (9) and the nut (8).

Subtask 26-23-42-420-050-H ** ON A/C NOT FOR ALL

A. Installation of the Cargo Fire-Extinguisher Bottle
(1) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) to the upper brackets of the fire extinguisher bottle (1)
(2) Install the fire extinguisher bottle (1) as follows:

WARNING: BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

(a) Hold the fire extinguisher bottle (1) in its correct installation position on the structure (16).
(b) Install the bolts (7), the washers (17) and the nuts (18).
(3) Remove the blanking plugs from:

The disconnected line ends
The safety relief valve (15)
The discharge heads (20).

(4) Make sure that the discharge heads (20) are aligned with the flexible hoses (4).
(5) If the discharge heads (20) are not aligned, do the steps that follow:

(a) Remove and discard the lockwire.
(b) Loosen the coupling nuts (19).
(c) Align the discharge heads (20) with the flexible hoses (4).
(d) TORQUE the coupling nuts (19) to between 6.8 and 5.4 m.daN (50.15 and 39.82 lbf.ft )

.
(e) Safety the coupling nuts (19) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

(6) Apply a small quantity of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the male threads of the safety relief valve (15) and the discharge heads (20).
(7) Connect the flexible hose (13) to the safety relief valve (15).
(8) TORQUE the nut (14) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(9) Connect the flexible hoses (4) to the discharge heads (20).
(10) TORQUE the nuts (5) to between 4.3 and 3.9 m.daN (31.71 and 28.76 lbf.ft )

.
(11) Install the bonding straps (25) and the nuts (24) on the ground lug bolts (26) (Ref. AMM TASK 20-28-00-912-802).
(12) TORQUE the nuts (24) to between 0.35 and 0.3 m.daN (30.97 and 26.55 lbf.in )

.
(13) Make sure that you are grounded with the ELECTRICALLY GROUNDED WRIST STRAP.

(14) Safety the cartridges (23) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

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.

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.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL WIRE(S).

(15) Connect the electrical connectors (2) and (22) as follows:
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.
(b) Remove the protective caps (21) from the cartridges (23).
(c) Connect the electrical connectors (22) to the cartridges (23).
(d) Connect the electrical connector (2) to the pressure switch (3).

(16) Safety the electrical connectors (22) with 14QEB1Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -.
(17) Put the eye-end of the tie-rod (9) in position between the lugs of the fire extinguisher bottle (1).
(18) If necessary, adjust the tie-rod (9) as follows:
(a) Loosen the lock nut (10) and remove the eye-end of the tie-rod (9) from the rod-end (12).
(b) Remove and discard the lock washer (11).
(c) Install the new AIPC 26-23-04-07-090 LOCK WASHER (11) or AIPC 26-23-84-07-245 LOCK WASHER (11) and the eye-end of the tie-rod (9) on the rod-end (12).
(d) Adjust the tie-rod (9) until the bolt (6) goes through the eye-end of the tie-rod (9) and the lugs that are on the fire extinguisher bottle (1).
(e) Tighten the lock nut (10).
(f) Safety the lock nut (10) with the lock washer (11).
(19) Install the bolt (6) and the nut (8).

Subtask 26-23-42-420-050-K ** ON A/C NOT FOR ALL

A. Installation of the Cargo Fire-Extinguisher Bottle

WARNING: BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

(1) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) to the upper brackets of the fire extinguisher bottle (1).
(2) Hold the fire extinguisher bottle (1) in its correct installation position on the structure (16).
(3) Install the bolts (7), the washers (17) and the nuts (18).
(4) TORQUE the nuts (18) to between 1.79 and 1.38 m.daN (13.20 and 10.18 lbf.ft )

.
(5) Remove the blanking plugs from:

The disconnected line ends
The safety relief valve (15)
The discharge heads (20).

(6) Make sure that the discharge heads (20) are aligned with the flexible hoses (4).
(7) If the discharge heads (20) are not aligned, do the steps that follow:

.
(e) Safety the coupling nuts (19) with the 14QGC1Wire-Locking Dia: 1 mm (0.041 inch) CRES -.

(8) Apply a small quantity of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the male threads of the safety relief valve (15) and the discharge heads (20).
(9) Connect the flexible hose (13) to the safety relief valve (15).
(10) TORQUE the nut (14) to between 1.3 and 1.2 m.daN (115.04 and 106.19 lbf.in )

.
(11) Connect the flexible hoses (4) to the discharge heads (20).
(12) TORQUE the nuts (5) to between 4.3 and 3.9 m.daN (31.71 and 28.76 lbf.ft )

.
(13) Install the bonding straps (25) and the nuts (24) on the ground lug bolts (26) (Ref. AMM TASK 20-28-00-912-802).
(14) TORQUE the nuts (24) to between 0.35 and 0.3 m.daN (30.97 and 26.55 lbf.in )

.
(15) Make sure that you are grounded with the ELECTRICALLY GROUNDED WRIST STRAP.

(16) Safety the cartridges (21) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

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.

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.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL WIRE(S).

(17) Connect the electrical connectors as follows:
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.
(b) Connect the electrical connector (2) to the pressure switch (3).
(c) Remove the protective caps (22) from the cartridges (21) and connect the electrical connectors (23) to the cartridges (21).

(d) Safety the electrical connectors (23) with the 14QEB1Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -.
(18) Put the eye-end of the tie-rod (9) in position between the lugs of the fire extinguisher bottle (1).
(19) If necessary, adjust the tie-rod (9) as follows:
(a) Loosen the locknut (10) and remove the eye-end of the tie-rod (9) from the rod-end (12).
(b) Unfold the lugs of the lockwasher (11).
(c) Remove and discard the lockwasher (11).
(d) Install the new AIPC 26-23-04-07-175 WASHER (11) or AIPC 26-23-84-07-245 WASHER (11) and the eye-end of the tie-rod (9) on the rod-end (12).
(e) Adjust the tie-rod (9) until the bolt (6) goes through the eye-end of the tie-rod (9) and the lugs on the fire extinguisher bottle (1).
(f) Tighten the locknut (10).
(g) Safety the locknut (10) with the lockwasher (11).
(20) Install the bolt (6) and the nut (8).
(21) TORQUE the nut (8) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )

Subtask 26-23-42-865-052-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C04
49VU	AIR COND/CARGO FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
122VU	AIR COND/CARGO/FIRE/EXTIG	1WX	T19

Subtask 26-23-42-710-050-A ** ON A/C NOT FOR ALL

C. Test
(1) Do the operational test of the cargo-compartment smoke-detection system (Ref. AMM TASK 26-16-00-710-001).

5. Close-up
Subtask 26-23-42-410-050-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) Install the sidewall panel 162AW (Ref. AMM TASK 25-55-12-400-003).
(3) Set the CARGO COMPT LIGHT switch 8LU to the OFF position.
(4) Close the aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).

Subtask 26-23-42-410-050-B ** 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) Install the partition panel 161DW (Ref. AMM TASK 25-55-12-400-001).
(3) Set the CARGO COMPT LIGHT switch 8LU to the OFF position.
(4) Close the aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).

Subtask 26-23-42-862-050-A ** ON A/C NOT FOR ALL

B. Put the aircraft back to its initial configuration.
(1) De-energize the ground service network (Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:46:44 UTC