TASK 71-00-00-700-066 Functional Test Of The HPC Stage 7 Bleed Valve Solenoid, Testing-066

DMC:V2500-A0-71-00-0000-03A-340A-B|Issue No:003.00|Issue Date:2021-05-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 71-00-00-700-066 Functional Test Of The HPC Stage 7 Bleed Valve Solenoid, Testing-066

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha-variants refer to the IPC.

Lubricate all threads with the approved engine oil, unless other lubricants are referred to in the procedure.

For the torque tightening procedure refer to SPM TASK 70-41-00-400-501 and SPM TASK 70-41-01-400-501. For the lockwire data refer to SPM TASK 70-40-01-400-501.

For data on the electrical connectors refer to SPM TASK 70-43-00-400-501 and SPM TASK 70-43-01-400-501.

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

The tools specified are the minimum standard for this TASK. For subsequent standards of tools refer to the Illustrated Tools and Equipment Manual (ITEM).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Torque wrench, range 96 to 900 lbf.in (10 to 100 Nm)LOCALTorque Wrench 96-900
IAE 2R19437 Test Set - Bleed valve0AM53IAE 2R194371

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-126 LOCKWIREK6835CoMat 02-126

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 71-00-00-030-001 Disconnect the Solenoid Supply and Servo Pipeline

    1. Refer to Figure.

    2. Cut and discard the lockwire that safeties the solenoid supply connectors at (B) and (C).

    3. Disconnect the solenoid supply connectors.

    4. Remove the air supply tube.

    5. Cut and discard the lockwire that safeties the solenoid servo connector at (D).

    6. NOTE

      Make sure you get sufficient access to the solenoid servo port.

      Disconnect the solenoid servo connector.

    7. Disconnect the electrical connector from the solenoid.

    2. SUBTASK 71-00-00-430-001 Install the Test Set

    1. Refer to Figure and Figure.

      2. Install the IAE 2R19437 Test Set - Bleed valve bleed valve test set.

      1. Set the select vent switch on the test set to closed.

      2. Set the test select switch on the test set to solenoid.

      3. Connect the solenoid supply union (B) to the solenoid input quick release fitting on the test set with the red color-coded hose.

      4. Connect the solenoid servo union (D) to the solenoid output quick release fitting on the test set with the green color-coded hose.

      5. Torque the solenoid supply connectors at (B) and (C) to 204 to 221 lbf-in (23 to 25 N.m) and the servo connector at (D) to 159 to 177 lbf-in (18 to 20 N.m).

      6. Connect the solenoid electrical connection to the 24Vdc output socket on the test set with the cable supplied.

    3. SUBTASK 71-00-00-720-001 Test the Stage 7 Solenoid Valve

    1. Refer to Figure.

    2. Set the channel switch on the test set to A.

    3. Set the pressure/vacuum mode switch on the test set to pressure.

    4. Set the power switch on the test set to off.

    5. NOTE

      After each stroke, stop for three seconds. This will let the air flow into the pump valves and make the task easier.

      Use the hand pump to get 20 lb/sq in (137.895 kPa) on the solenoid input pressure gage.

    6. Push and hold the test set test switch.

      7. Do a check on the solenoid output pressure gage.

        1. Solenoid output pressure increases quickly to approximately equal to, or no more than 5 lb/sq in (34.474 kPa) less than the solenoid input pressure. Pressure on both gages may slowly decrease.

        1. Accept

        2. Pressure on both gages decreases in less than 5 seconds.

        1. Reject

        3. The difference between both gages is more than 5 lb/sq in (34.474 kPa).

        1. Reject

    8. Release the test set test switch.

    9. Set the power switch on the test set to on.

    10. NOTE

      After each stroke, stop for three seconds. This will let the air flow into the pump valves and make the task easier.

      Use the hand pump to get 20 lb/sq in (137.895 kPa) on the solenoid input pressure gage.

    11. Push and hold the test set test switch.

      12. NOTE

        When the test set test switch is pushed, the solenoid input pressure can gradually decrease. This can be accepted.

        Do a check on the green continuity light and the solenoid output pressure gage.

        1. Green continuity light comes on and the solenoid output pressure is zero.

        1. Accept

        2. NOTE

          When the test set test switch is pushed, the solenoid output pressure gage can momentarily display a pressure. This can be accepted.

          Green continuity light does not come on.

        1. Reject

        3. The solenoid output pressure is more than zero.

        1. Reject

    13. Release the test set test switch.

    14. Set the channel switch on the test set to B.

    15. Do Step to Step again.

    4. SUBTASK 71-00-00-080-001 Remove the Test Set

    1. Refer to Figure and Figure.

    2. Disconnect the electrical test lead from the solenoid valve electrical connector and the test set.

    3. Disconnect the red and green test hoses from the solenoid supply and zero unions, and from the test set quick release connections.

    5. SUBTASK 71-00-00-430-002 Connect the Solenoid Supply and Servo Pipeline

    1. Refer to Figure.

    2. Connect the electrical connector to the solenoid.

    3. Connect the solenoid supply connectors at (B) and (C), and the servo connector at (D) to the solenoid valve.

    4. Torque the connectors (B) and (C) to 204 to 221 lbf-in (23 to 25 N.m) and connector (D) to 159 to 177 lbf-in (18 to 20 N.m).

    5. Safety the connectors with CoMat 02-126 LOCKWIRE.

    6. Figure: HPC stage 7 bleed valve solenoids

    HPC stage 7 bleed valve solenoids

    Figure: Bleed valve test set

    Bleed valve test set

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised procedural steps. (20VC290)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:K6835
Supply Number:CoMat 02-126
Type:sp01
Supply Short Name:CoMat 02-126 LOCKWIRE
Supply Name:CoMat 02-126 LOCKWIRE
Specification Groups:
Doc NumberType
DTD 189A, 0.028 TO 0.032 IN DIA
Suppliers:
ManufacturerRemarks
K6835
KB362
LOCAL
U06C8
Manufacturer Code:0AM53
Tool Number:IAE 2R19437
Tool Name:IAE 2R19437 Test Set - Bleed valve
Manufacturer Code:LOCAL
Tool Number:Torque Wrench 96-900
Tool Name:Torque wrench, range 96 to 900 lbf.in (10 to 100 Nm)