Installation of the Fuel Nozzle Supply Manifold [IAE]

TASK 73-11-41-400-010-B
Installation of the Fuel Nozzle Supply Manifold

WARNING: BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES. IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER. IF NECESSARY, GET MEDICAL HELP. AIRCRAFT FUEL IS POISONOUS.

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.

CAUTION: DO NOT LET ENGINE FUEL OR OIL FALL ON THE ENGINE. UNWANTED FUEL OR OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

ZONE: 210
ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
The installation procedure given here is for the installation of one, some or all of the fuel nozzle supply manifolds.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )
No specific	Torque wrench: range to between 95 and 85 lbf.in (1.07 and 0.96 m.daN )
No specific	Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
No specific	Torque wrench: range to between 225 and 205 lbf.in (2.54 and 2.32 m.daN )
No specific	Torque wrench: range to between 1250 and 1150 lbf.in (14.13 and 13.00 m.daN )
IAE1P16042	1	ADAPTER, LEAK TEST
IAE1P16139	1	WRENCH-TIGHTEN

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V02-141)	corrosion resistant steel lockwire
(Material No.V10-045)	Leak Check Fluid
(Material No.V10-077)	lubricant (engine oil)
(Material No.V10-087)	sealing ring lubricant
(Material No.V10-121)	lubricating, fluid
(Material No.V10-129)	anti-seize paste

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
5	PACKINGS	AIPC 73-11-41-80-010
11	GASKET	AIPC 73-11-41-80-040
1	GASKET	AIPC 73-11-41-80-050
12	PACKING	AIPC 73-11-49-74-020
10	PACKING	AIPC 73-11-49-84-100

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-40-11-911-012-A	General Instructions for the Uses of Lockwire
TASK 70-40-11-911-014-A	Locking Devices General Information
TASK 71-00-00-710-012-B	Test No.3 : Idle Leak Check
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
TASK 71-00-00-710-046-B	Test No.2 : Wet Motor Leak Check
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
Fuel Nozzle Supply Manifolds (3), (15) and (17) (PRE SBE 73-0088)
Fuel Nozzle Supply Manifolds (18), (19) and (20) (PRE SBE 73-0088)
Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (PRE SBE 73-0088)
Fuel Nozzle Supply Manifold - Connections
Fuel Nozzle Supply Manifolds (3), (15) and (17) (POST SBE 73-0088)
Fuel Nozzle Supply Manifolds (18), (19) and (20) (POST SBE 73-0088)
Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (POST SBE 73-0088)
Fuel Distribution Valve (Fuel Supply Tube and Clip Point 5700)
Loop Clamps and Brackets
Loop Clamps and Brackets
Fuel Nozzle Supply Manifolds
Loop Clamps and Brackets
Loop Clamps and Brackets

3. Job Set-up
Subtask 73-11-41-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 73-11-41-010-060-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowls are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser halves are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 73-11-41-040-052-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).

4. Procedure
Subtask 73-11-41-410-053-A ** ON A/C NOT FOR ALL

A. Installation of the Transfer Tubes to the Fuel Nozzle Supply Manifold

PRE SBE 73-0088

(1) Remove the applicable covers/caps/plugs from all the openings.
(2) Install the transfer tubes.

Fuel Nozzle Supply Manifolds (3), (15) and (17) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifold - Connections ** ON A/C NOT FOR ALL

and (Ref. AMM TASK 70-23-13-911-010)
(a) Use V10-077lubricant (engine oil) or sealing ring lubricant (Material No.V10-087) to lubricate the parts.
(b) Install two AIPC 73-11-41-80-010 PACKINGS (5) to each transfer tube (2).
(c) Install a AIPC 73-11-41-80-040 GASKET (11) and a AIPC 73-11-41-80-050 GASKET (1).
(d) Install the transfer tube(s) (2) in the fuel nozzle and support assembly.
(e) Install the transfer tube(s) (2) in the fuel distribution valve (28).

END OF PRE SBE 73-0088

Subtask 73-11-41-410-062-A ** ON A/C NOT FOR ALL

B. Installation of the Transfer Tubes to the Fuel Nozzle Supply Manifold

POST SBE 73-0088

(1) Remove the applicable covers/caps/plugs from all the openings.
(2) Install the transfer tubes.

Fuel Nozzle Supply Manifolds (3), (15) and (17) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifold - Connections ** ON A/C NOT FOR ALL

and (Ref. AMM TASK 70-23-13-911-010)
(a) Use V10-077lubricant (engine oil) or sealing ring lubricant (Material No.V10-087) to lubricate the parts.
(b) Install two AIPC 73-11-41-80-010 PACKINGS (5) to each transfer tube (2).
(c) Install the transfer tube(s) (2) in the fuel nozzle and support assembly.
(d) Install the transfer tube(s) (2) in the fuel distribution valve (28).

END OF POST SBE 73-0088

Subtask 73-11-41-420-052-A ** ON A/C NOT FOR ALL

C. Installation of the Fuel Nozzle Supply Manifold(s)

PRE SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

(1) Apply anti-seize paste (Material No.V10-129) on the end fittings and also on the nut threads of the fuel supply manifolds that attach to the fuel nozzles.

NOTE: If the fuel supply manifolds were replaced with new tubes, then do not apply anti-seize paste (Material No.V10-129) . The new fuel supply tubes have dry anti-gallant.

(2) Put the applicable manifold(s) (3), (15), (17), (18), (19), (20), (21), (22), (23) and/or (24) into position.
(3) Attach the manifold(s) to the fuel nozzle and support assembly and the fuel distribution valve with the tube nuts (4) and (10).
(4) Tighten the tube nuts with your hand.

END OF PRE SBE 73-0088

Subtask 73-11-41-420-057-A ** ON A/C NOT FOR ALL

D. Installation of the Fuel Nozzle Supply Manifold(s)

POST SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

(1) Apply anti-seize paste (Material No.V10-129) on the end fittings and also on the nut threads of the fuel supply manifolds that attach to the fuel nozzles.

NOTE: If the fuel supply manifolds were replaced with new tubes, then do not apply anti-seize paste (Material No.V10-129) . The new fuel supply tubes have dry anti-gallant.

Subtask 73-11-41-790-053-A ** ON A/C NOT FOR ALL

E. Check the fuel system for leaks

Fuel Distribution Valve (Fuel Supply Tube and Clip Point 5700) ** ON A/C NOT FOR ALL

(1) Remove the fuel supply tube.
(a) Remove the nut (1), the washer (3) and the bolt (4) from the clip point 5700. Do not remove the loop clamps (2) and (5).
(b) Remove the three bolts (6) that attach the fuel supply tube (7) to the fuel distribution valve.
(c) Remove the lockwire from the fuel supply tube nut (11) at the bifurcation panel (8).
(d) Disconnect the tube nut (11).
(e) Remove the tube (7) from the engine.
(f) Remove and discard the ring (12) and the packing (10).
(2) Do the fuel system pressure test.
(a) Install the IAE1P16042 ADAPTER, LEAK TEST to the front of the fuel distribution valve and attach with bolts. Tighten the bolts with your hand.
(b) Attach a 100 psi (6.9 bar) air source to the test adapter.
(c) Pressurize the system to between 95 psi (6.5 bar) and 105 psi (7.2 bar).
(d) Check the fuel manifold coupling nuts for leaks at the fuel distribution valve and the applicable fuel nozzles with Leak Check Fluid (Material No.V10-045) .
(e) Hold the pressure for 5 minutes. No leaks are permitted from any surface, joint or connection. Repair all leaks you find.
(f) Decrease the air pressure to zero and remove the air pressure source from the test adapter.
(g) Remove the three bolts that attach the test adapter and remove the adapter from the engine.
(3) Install the fuel supply tube.
(a) Apply V10-121lubricating, fluid to a new AIPC 73-11-49-74-020 PACKING (12).
(b) Install the new ring (12) in the groove on the flanged end of the fuel supply tube (7) (Ref. AMM TASK 70-23-13-911-010).
(c) Install the fuel supply tube (7) to the front of the fuel distribution valve.
(d) Apply V10-077lubricant (engine oil) to the threads of the fuel supply tube bolts (6).
(e) Install the bolts (6) and tighten with your hand.
(f) Apply V10-121lubricating, fluid to a new AIPC 73-11-49-84-100 PACKING (10).
(g) Install the new packing (10) to the connector (9) located on the bifurcation panel (8) (Ref. AMM TASK 70-23-13-911-010).
(h) Connect the fuel supply tube nut (11) to the connector (9) and tighten with your hand.
(i) TORQUE the three bolts (6) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(j) TORQUE the supply tube nut (11) to between 1250 and 1150 lbf.in (14.13 and 13.00 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(k) Safety the supply tube nut (11) with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(l) Put the washer (3) on the bolt (4) and install the bolt through the loop clamps (2) and (5) and the raceway clip and attach with the nut (1).
(m) TORQUE the nut (1) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 73-11-41-410-054-A ** ON A/C NOT FOR ALL

F. Installation of the Loop Clamp(s)

PRE SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifold - Connections ** ON A/C NOT FOR ALL

NOTE: The fuel nozzle supply manifolds (18), (19) and (20) do not have loop clamps.

Fuel Nozzle Supply Manifolds (18), (19) and (20) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

(1) Install the loop clamp(s) (6) to the applicable fuel nozzle supply manifolds (3), (15), (17), (21), (22), (23) and/or (24).
(2) Position the loop clamp(s) on the applicable bracket(s) (8), (14), (16), (25), (26), (27), (30), (31), (32), (33) and/or (34).
(3) Attach the loop clamp(s) to the bracket(s) with the nuts (7) and the bolts (9), (13) and/or (23).
(4) TORQUE the nuts (7) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

END OF PRE SBE 73-0088

Subtask 73-11-41-410-063-A ** ON A/C NOT FOR ALL

G. Installation of the Loop Clamp(s)

POST SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds ** ON A/C NOT FOR ALL

Loop Clamps and Brackets ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifold - Connections ** ON A/C NOT FOR ALL

NOTE: The fuel nozzle supply manifolds (18), (19) and (20) do not have loop clamps.

Fuel Nozzle Supply Manifolds (18), (19) and (20) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

(Ref. AMM TASK 70-23-11-911-013).

END OF POST SBE 73-0088

Subtask 73-11-41-420-053-A ** ON A/C NOT FOR ALL

CAUTION: WHEN YOU USE THE IAE 1P16139 WRENCH, THE CORRECT TORQUE WILL HAVE TO BE CALCULATED USING THE FORMULA IN THE STANDARD PRACTICES SECTION OF THIS MANUAL.

CAUTION: MAKE SURE THAT YOU DO THE PROCEDURE THAT FOLLOWS TO CORRECTLY TORQUE THE FUEL MANIFOLD COUPLING NUTS. INCORRECT TORQUE COULD RESULT IN DAMAGE TO ENGINE PARTS.

H. Safetying of the Fuel Nozzle Supply Manifold Tube Nuts

PRE SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (PRE SBE 73-0088) ** ON A/C NOT FOR ALL

(1) TORQUE the fuel manifold tube nuts (10), at the fuel distribution valve, with the IAE1P16139 WRENCH-TIGHTEN to between 95 and 85 lbf.in (1.07 and 0.96 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(2) Continue to torque the applicable tube nuts (10) until the nuts hold the necessary torque. If a nut will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seals.
(3) TORQUE the applicable tube nuts (4) at the fuel nozzles to between 225 and 205 lbf.in (2.54 and 2.32 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(4) Continue to torque the applicable tube nuts (4) until the nuts hold the necessary torque. If a nut will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seals.
(5) Do a fuel manifold clearance check at fuel nozzle number 18.
(a) Make sure the clearance between the fuel manifold and the fuel manifold bracket is 0.098 in. (2.489 mm) or more.
(6) Safety the tube nuts (4) and (10) with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-012).

END OF PRE SBE 73-0088

Subtask 73-11-41-420-058-A ** ON A/C NOT FOR ALL

CAUTION: WHEN YOU USE THE IAE 1P16139 WRENCH, THE CORRECT TORQUE WILL HAVE TO BE CALCULATED USING THE FORMULA IN THE STANDARD PRACTICES SECTION OF THIS MANUAL.

CAUTION: MAKE SURE THAT YOU DO THE PROCEDURE THAT FOLLOWS TO CORRECTLY TORQUE THE FUEL MANIFOLD COUPLING NUTS. INCORRECT TORQUE COULD RESULT IN DAMAGE TO ENGINE PARTS.

I. Safetying of the Fuel Nozzle Supply Manifold Tube Nuts

POST SBE 73-0088

Fuel Nozzle Supply Manifolds (3), (15) and (17) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (18), (19) and (20) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

Fuel Nozzle Supply Manifolds (21), (22), (23) and (24) (POST SBE 73-0088) ** ON A/C NOT FOR ALL

(1) TORQUE the fuel manifold tube nuts (10), at the fuel distribution valve, with the IAE1P16139 WRENCH-TIGHTEN to between 95 and 85 lbf.in (1.07 and 0.96 m.daN )

5. Close-up
Subtask 73-11-41-410-058-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) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 73-11-41-440-051-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 73-11-41-410-055-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the WARNING NOTICE(S).

Subtask 73-11-41-865-054-A ** ON A/C NOT FOR ALL

D. 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
FOR FIN: 1000EM1 (ENGINE1)
49VU	FUEL/LP VALVE/MOT1/ENG1	1QG	A08
121VU	FUEL/LP VALVE/MOT2/ENG1	3QG	M25
FOR FIN: 1000EM2 (ENGINE2)
49VU	FUEL/LP VALVE/MOT1/ENG2	2QG	A09
121VU	FUEL/LP VALVE/MOT2/ENG2	4QG	M26

Subtask 73-11-41-790-051-A ** ON A/C NOT FOR ALL

E. Do this test:
(1) Do an Idle Leak check (Ref. AMM TASK 71-00-00-710-012).

NOTE: A dry motor leak check (Ref. AMM TASK 71-00-00-710-045) may be used to check for leaks, but this must be followed by an idle leak check (Ref. AMM TASK 71-00-00-710-012).

NOTE: A wet motor leak check (Ref. AMM TASK 71-00-00-710-046) may be used to check for leaks, but this must be followed by an idle leak check (Ref. AMM TASK 71-00-00-710-012).

[Rev.10 from 2021] 2026.04.01 13:05:58 UTC