Cleaning of the Sense Line between the HP Bleed-Override Solenoid and the Pressure Regulating Valve (PRV)

TASK 36-11-58-100-803-A
Cleaning of the Sense Line between the HP Bleed-Override Solenoid and the Pressure Regulating Valve (PRV)

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

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: 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, INJURY AND/OR DAMAGE CAN OCCUR.

ZONE: 400

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	1	AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY
No specific	1	BORESCOPE DIA 5.0 MM (7/32 IN) - FLEXIBLE
No specific	3	CAP - BLANKING
No specific	2	HOSE - TRANSPARENT, FLEXIBLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.76 and 1.44 m.daN (12.98 and 10.62 lbf.ft )
No specific	Torque wrench: range to between 1.69 and 1.52 m.daN (12.46 and 11.21 lbf.ft )
98L36103002000	1	TEST SET - ENGINE BLEED

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
191BB
FOR [1000EM1] (ENGINE-1)
415AL, 415AR, 437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
425AL, 425AR, 447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
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)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A	Closing of the Thrust Reverser Doors
Sense Line between the HP Bleed-Override Solenoid and the PRV

3. Job Set-up
Subtask 36-11-58-861-055-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-58-941-055-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(2) On AIR COND control panel 30VU:
(a) Make sure that the ENG 1(2) BLEED pushbutton switch is released (OFF legend on).
(b) Make sure that the APU BLEED pushbutton switch is released (ON legend off).
(c) Put a WARNING NOTICE(S) in position to tell persons not to operate the bleed air system.
(3) On ENG control panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to operate the engine 1(2).
(4) On the ENG section of panel 50VU:
(a) Make sure that the ENG FADEC GND PWR 1(2) pushbutton is off (ON legend off).
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC system.
(5) On access panel 191BB, put a WARNING NOTICE(S) to tell persons not to use the HP ground connectors to pressurize the pneumatic system.

Subtask 36-11-58-865-057-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
FOR FIN: 11HA1 (SOLHP BLEED OVERRIDE, ENG1)
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
FOR FIN: 11HA2 (SOLHP BLEED OVERRIDE, ENG2)
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

Subtask 36-11-58-010-062-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 36-11-58-040-054-A ** ON A/C NOT FOR ALL

E. Deactivation of the Thrust Reverser Door

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-481-041).

Subtask 36-11-58-010-063-A ** ON A/C NOT FOR ALL

F. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-040):
(2) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(3) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
(4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.

Subtask 36-11-58-010-064-A ** ON A/C NOT FOR ALL

G. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the pylon.
(2) Open the access doors:
(a) FOR [1000EM1] (ENGINE-1)
415AL 415AR
(b) FOR [1000EM2] (ENGINE-2)
425AL 425AR.

4. Procedure
Subtask 36-11-58-480-056-A ** ON A/C NOT FOR ALL

A. Installation of the Tool

CAUTION: USE TWO WRENCHES DURING DISCONNECTION OF THE SENSE LINE, ONE TO MAINTAIN THE FIXED NUT AND THE SECOND ONE TO LOOSEN/TIGHTEN THE SENSE LINE COUPLING.

CAUTION: TO PREVENT DAMAGE TO THE FITTING END OF THE SENSE LINE, TURN THE UNION WITH YOUR HAND AND NOT WITH A SPANNER.

CAUTION: BE CAREFUL WHEN YOU CONNECT/DISCONNECT THE TEST SET TO/FROM THE EQUIPMENT. THE PRESSURE REGULATING VALVE AND THE PRESSURE GAGE ASSEMBLY OF THE TEST SET ARE HEAVY AND CAN CAUSE DAMAGE TO THE ENGINE.

(1) Disconnect the sense line from the HP bleed-override solenoid.
(2) Put a CAP - BLANKING on the sense line port of the HP bleed-override solenoid.
(3) Connect a HOSE - TRANSPARENT, FLEXIBLE to the disconnected end of the sense line.
(4) Connect the 98L36103002000 TEST SET - ENGINE BLEED with the HOSE - TRANSPARENT, FLEXIBLE to the sense line.
(5) Disconnect the sense line from the sense line port of the Pressure Regulating Valve (PRV).
(6) Install a CAP - BLANKING on the sense line port of the PRV.
(7) Disconnect the sense line from the sense line port of the High Pressure Valve (HPV).
(8) Install a CAP - BLANKING on the sense line port of the HPV.
(9) On the 98L36103002000 TEST SET - ENGINE BLEED, set the shutoff valve, the purge valve and the pressure regulator valve to the closed position.
(10) Connect a AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY to the 98L36103002000 TEST SET - ENGINE BLEED.

Subtask 36-11-58-160-052-A ** ON A/C NOT FOR ALL

B. Removal of Water and Cleaning of the Sense Line between the HP Bleed-Override Solenoid and the PRV
(1) Set the shutoff valve of the AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY to the open position.
(2) Use the primary regulator valve on the 98L36103002000 TEST SET - ENGINE BLEED or on the AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY and pressurize the 98L36103002000 TEST SET - ENGINE BLEED to 29 psi (2.00 bar).
(3) On the 98L36103002000 TEST SET - ENGINE BLEED, set the shutoff valve to the open position.
(4) Use the pressure regulator valve on the 98L36103002000 TEST SET - ENGINE BLEED to increase the pressure slowly to 29 psi (2.00 bar).
(5) Let the pressurized air clean the sense line during 30 seconds.
(6) Use the primary regulator valve on the 98L36103002000 TEST SET - ENGINE BLEED or on the AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY to decrease the 98L36103002000 TEST SET - ENGINE BLEED pressure to 0 psi (0.00 bar).
(7) Set the shutoff valve of the AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY to the closed position.

Subtask 36-11-58-080-056-A ** ON A/C NOT FOR ALL

C. Removal of the Tool

CAUTION: USE TWO WRENCHES DURING DISCONNECTION OF THE SENSE LINE, ONE TO MAINTAIN THE FIXED NUT AND THE SECOND ONE TO LOOSEN/TIGHTEN THE SENSE LINE COUPLING.

CAUTION: TO PREVENT DAMAGE TO THE FITTING END OF THE SENSE LINE, TURN THE UNION WITH YOUR HAND AND NOT WITH A SPANNER.

(1) Disconnect the 98L36103002000 TEST SET - ENGINE BLEED from the AIR SOURCE 2 BAR (30 PSI) - REGULATED, FILTERED, DRY.
(2) Disconnect the HOSE - TRANSPARENT, FLEXIBLE from the sense line.
(3) Do a visual inspection of the sense line with a BORESCOPE DIA 5.0 MM (7/32 IN) - FLEXIBLE to look for moisture.
(a) If there is moisture, do the removal of the water and cleaning of the sense line again. Do this procedure a maximum of two times.
(4) Remove the CAP - BLANKING from the sense line port of the HP bleed-override solenoid.
(5) Connect the sense line port to the port of the HP bleed-override solenoid.
(6) TORQUE the end of the sense line to between 1.76 and 1.44 m.daN (12.98 and 10.62 lbf.ft )

.
(7) Remove the CAP - BLANKING from the sense line port of the HPV.
(8) Connect the sense line to the sense line port of the HPV.
(9) Remove the CAP - BLANKING from the sense line port of the PRV.
(10) Connect the sense line to the sense line port of the PRV.
(11) TORQUE the coupling nuts on the HP sense lines to between 1.69 and 1.52 m.daN (12.46 and 11.21 lbf.ft )

5. Close-up
Subtask 36-11-58-410-061-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the access doors:
(a) FOR [1000EM1] (ENGINE-1)
415AL 415AR
(b) FOR [1000EM2] (ENGINE-2)
425AL 425AR.

Subtask 36-11-58-410-062-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-040).
(2) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(3) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 36-11-58-440-054-A ** ON A/C NOT FOR ALL

C. Reactivation of the Thrust Reverser Door
(1) Do the reactivation of the thrust reverser system (Ref. AMM TASK 78-30-00-081-041).

Subtask 36-11-58-410-063-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the access platform(s).

Subtask 36-11-58-865-058-A ** ON A/C NOT FOR ALL

E. 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: 11HA1 (SOLHP BLEED OVERRIDE, ENG1)
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
FOR FIN: 11HA2 (SOLHP BLEED OVERRIDE, ENG2)
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

Subtask 36-11-58-942-052-A ** ON A/C NOT FOR ALL

F. Aircraft Maintenance Configuration
(1) Remove the WARNING NOTICE(S).
(2) Put the aircraft back to its initial configuration.

Subtask 36-11-58-862-055-A ** ON A/C NOT FOR ALL

G. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 01:14:11 UTC