DOC AIRBUS | AMM A320FFunctional Test of the HPC Stage 7 Solenoid Valve with Test Set IAE2R19437 [IAE]
TASK 75-32-51-700-010-A
Functional Test of the HPC Stage 7 Solenoid Valve with Test Set IAE2R19437
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 75-32-51-941-054-A ** ON A/C NOT FOR ALL
Subtask 75-32-51-020-055-A ** ON A/C NOT FOR ALL
Subtask 75-32-51-410-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:08:55 UTC
Functional Test of the HPC Stage 7 Solenoid Valve with Test Set IAE2R19437
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 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )  | |
| No specific | Torque wrench: range to between 221 and 204 lbf.in (2.50 and 2.31 m.daN ) | |
| IAE2R19437 | 1 | TEST SET - BLEED VALVE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V02-126) | lockwire |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| 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) |
HPC Stage 7 Solenoid ValvesSubtask 75-32-51-941-054-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 75-32-51-010-057-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Put the ACCESS PLATFORM 1M(3 FT) in position.
4. Procedure(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Put the ACCESS PLATFORM 1M(3 FT) in position.
Subtask 75-32-51-020-055-A ** ON A/C NOT FOR ALL
A. Disconnection of the Solenoid Supply and Servo Pipeline
(1) Cut and discard the lockwire and disconnect the solenoid supply connectors (1) and (2). Remove the air supply tube.
(2) Cut and discard the lockwire and disconnect the solenoid servo connector (4). Ensure sufficient access to the solenoid servo port is afforded.
(3) Disconnect the electrical connector (3) from the solenoid valve.
Subtask 75-32-51-480-052-A ** ON A/C NOT FOR ALL (1) Cut and discard the lockwire and disconnect the solenoid supply connectors (1) and (2). Remove the air supply tube.
(2) Cut and discard the lockwire and disconnect the solenoid servo connector (4). Ensure sufficient access to the solenoid servo port is afforded.
(3) Disconnect the electrical connector (3) from the solenoid valve.
B. Installation of the Bleed Valve System Test Set
(1) Install the IAE2R19437 TEST SET - BLEED VALVE.
Subtask 75-32-51-720-054-A ** ON A/C NOT FOR ALL (1) Install the IAE2R19437 TEST SET - BLEED VALVE.
C. Test
(1) Set SELECT VENT switch (5) to CLOSED position.
(2) Set TEST SELECT switch (6) to SOLENOID position.
(3) Connect solenoid supply connector (15) to test set quick release fitting marked SOLENOID INPUT (7) with red color coded pipeline.
(4) Connect solenoid servo connector (16) to test set quick release fitting marked SOLENOID OUTPUT (8) with green color coded pipeline.
(5) TORQUE solenoid supply connector (1) to between 221 and 204 lbf.in (2.50 and 2.31 m.daN ).
(6) TORQUE solenoid servo tube connector (4) to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ).
(7) Connect the solenoid electrical connection (9) to the test set 24Vdc OUTPUT socket using the cable provided.
(8) Select A on the test set CHANNEL switch (10).
(9) Select PRESSURE/VACUUM mode switch (11) on test set to PRESSURE.
(10) Set test set POWER switch (12) to OFF.
(11) Use hand pump to attain 20 psi on solenoid input pressure gauge.
(13) Check the reading on the solenoid output pressure gauge.
PASS: Solenoid output pressure rapidly rises to be within +0/-5 psi of solenoid input pressure. Pressure on both gauges may slowly decay. If the decay is greater than 5 seconds, this is acceptable.
FAIL: Solenoid output pressure and solenoid input pressure differ by greater than 5 psi. If the decay is less than 5 seconds, reject the solenoid.
(14) Release TEST SWITCH pushbutton (13).
(15) Set test set POWER switch (12) to ON.
(16) Use hand pump to attain 20 psi on solenoid input pressure gauge.
(17) Depress and hold TEST SWITCH pushbutton (13).
PASS: Green CONTINUITY light illuminates and solenoid output pressure is zero (the solenoid output pressure gauge may momentarily indicate a pressure when the TEST SWITCH pushbutton is pressed, this is acceptable).
FAIL: CONTINUITY light does not illuminate or solenoid output pressure is greater than zero (momentary indication on first pressing TEST SWITCH pushbutton is acceptable).
(19) With B selected on CHANNEL switch (10), repeat steps (9)-(17).
Subtask 75-32-51-080-051-A ** ON A/C NOT FOR ALL (1) Set SELECT VENT switch (5) to CLOSED position.
(2) Set TEST SELECT switch (6) to SOLENOID position.
(3) Connect solenoid supply connector (15) to test set quick release fitting marked SOLENOID INPUT (7) with red color coded pipeline.
(4) Connect solenoid servo connector (16) to test set quick release fitting marked SOLENOID OUTPUT (8) with green color coded pipeline.
(5) TORQUE solenoid supply connector (1) to between 221 and 204 lbf.in (2.50 and 2.31 m.daN )
. (6) TORQUE solenoid servo tube connector (4) to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
. (7) Connect the solenoid electrical connection (9) to the test set 24Vdc OUTPUT socket using the cable provided.
(8) Select A on the test set CHANNEL switch (10).
(9) Select PRESSURE/VACUUM mode switch (11) on test set to PRESSURE.
(10) Set test set POWER switch (12) to OFF.
(11) Use hand pump to attain 20 psi on solenoid input pressure gauge.
NOTE: Pause for three seconds after each stroke. This allows air to flow into pump valves and makes the task easier.
(12) Depress and hold TEST SWITCH pushbutton (13). (13) Check the reading on the solenoid output pressure gauge.
PASS: Solenoid output pressure rapidly rises to be within +0/-5 psi of solenoid input pressure. Pressure on both gauges may slowly decay. If the decay is greater than 5 seconds, this is acceptable.
FAIL: Solenoid output pressure and solenoid input pressure differ by greater than 5 psi. If the decay is less than 5 seconds, reject the solenoid.
(14) Release TEST SWITCH pushbutton (13).
(15) Set test set POWER switch (12) to ON.
(16) Use hand pump to attain 20 psi on solenoid input pressure gauge.
(17) Depress and hold TEST SWITCH pushbutton (13).
PASS: Green CONTINUITY light illuminates and solenoid output pressure is zero (the solenoid output pressure gauge may momentarily indicate a pressure when the TEST SWITCH pushbutton is pressed, this is acceptable).
FAIL: CONTINUITY light does not illuminate or solenoid output pressure is greater than zero (momentary indication on first pressing TEST SWITCH pushbutton is acceptable).
NOTE: Input pressure will gradually decay while the test set switch is being pressed. This is acceptable.
(18) Release the TEST SWITCH pushbutton (13). (19) With B selected on CHANNEL switch (10), repeat steps (9)-(17).
D. Disconnection of the Test Set
(1) Disconnect the electrical test lead from the solenoid valve electrical connector (9) and the test set.
(2) Disconnect the red and green test hoses from the solenoid supply (7) and servo (8) unions and from the test set quick release connections.
Subtask 75-32-51-480-053-A ** ON A/C NOT FOR ALL (1) Disconnect the electrical test lead from the solenoid valve electrical connector (9) and the test set.
(2) Disconnect the red and green test hoses from the solenoid supply (7) and servo (8) unions and from the test set quick release connections.
E. Reconnection of Engine Pneumatic and Electrical Services
(1) Reconnect the aircraft electrical connector (3) to the solenoid valve.
(2) Reconnect the solenoid supply pipeline (1), (2) and servo (4) connectors to the solenoid valve.
(3) TORQUE solenoid supply tube connector (1) and air inlet tube connector (2) to between 221 and 204 lbf.in (2.50 and 2.31 m.daN ).
(4) TORQUE solenoid servo tube connector (4) to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ).
(5) Safety the connectors (1), (2) and (4) with lockwire (Material No.V02-126) .
5. Close-up(1) Reconnect the aircraft electrical connector (3) to the solenoid valve.
(2) Reconnect the solenoid supply pipeline (1), (2) and servo (4) connectors to the solenoid valve.
(3) TORQUE solenoid supply tube connector (1) and air inlet tube connector (2) to between 221 and 204 lbf.in (2.50 and 2.31 m.daN )
. (4) TORQUE solenoid servo tube connector (4) to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
. (5) Safety the connectors (1), (2) and (4) with lockwire (Material No.V02-126) .
Subtask 75-32-51-410-054-A ** ON A/C NOT FOR ALL
A. Get Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) 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
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) 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
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).