TASK 79-21-41-700-401 Oil Pressure Pump/Filter Housing - Related Parts - Test The Oil Pressure Pump, Testing-001

DMC:V2500-A0-79-21-4100-00A-340A-C|Issue No:004.00|Issue Date:2016-08-01

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 79-21-41-700-401 Oil Pressure Pump/Filter Housing - Related Parts - Test The Oil Pressure Pump, Testing-001

Effectivity

FIG/ITEM

PART NO.

01-001

4A0852

01-001

4A7076

01-001

4A7077

01-001

4A7110

01-001

4A7110B

01-001

4A7115

01-001

4A7115A

General

NOTE

To identify the consumable materials refer to the PCI.

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

You can use this test to do a check of the oil pressure pump after repair or overhaul. This test can also be used to check the operation of the relief valve, setting the trim valve and for trouble shooting purposes.

Make sure that the mesh of the test stand filter element is not bigger than 30 microns.

If installed, remove the storage parts from the oil pressure pump.

The drive gear of the oil pressure pump turns clockwise in normal operation (looking from rear of pump). Refer to Figure.

Make sure that the drive gear of the oil pump can be freely turned by hand.

For standard torque data and procedure, refer to SPM TASK 70-41-02-400-501 and SPM TASK 70-41-00-400-501.

Do the test in the sequence specified.

WARNING

DO NOT GET ENGINE OIL ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES. ENGINE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY. FLUSH ENGINE OIL FROM YOUR EYES, MOUTH OR SKIN WITH WATER. GET MEDICAL AID IF YOU GET ENGINE OIL IN YOUR EYES OR MOUTH.

WARNING

DO NOT TOUCH HOT PARTS WITHOUT PROTECTIVE GLOVES. HOT PARTS CAUSE REDDENING AND BLISTERING OF THE SKIN IF THE HANDS ARE NOT PROTECTED. IMMERSE THE CONTACTED AREA IN COLD WATER FOR 10 MINUTES IF THE SKIN IS BURNED. GET MEDICAL ATTENTION IF PAIN OR BLISTERING PERSISTS.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Motor Drive UnitLOCALMotor Drive Unit

Variable speed, 4000 rpm maximum and 12 kW

Mechanical AdapterLOCALMechanical Adapter

To install the oil pressure pump on the test stand.

TorquemeterLOCALTorquemeter

(Optional) 0 to 50 Nm

Temperature gaugeLOCALTemperature gauge4

68 to 392 deg F (20 to 160 deg C)

Heat exchangerLOCALHeat exchanger

To keep the temperature of the test fluid between 104 to 230 deg F (40 to 110 deg C)

FlowmeterLOCALFlowmeter

at location 1 - 5 to 50 gal/min (19 to 189 l/min)

FlowmeterLOCALFlowmeter

at location 10 - 2.37 to 24.83 gal/min (9 to 94 l/min)

FlowmeterLOCALFlowmeter

at location 11 - 0.1 to 5 gal/min (0.4 to 19 l/min.)

Vacuum gaugeLOCALVacuum gauge

at location 8 - 14.5 to 21.7 psia (100 to 150 kpa)

Pressure gaugeLOCALPressure gauge

at location 13 - 0 to 580 psig (0 to 4000 kpa)

Pressure gaugeLOCALPressure gauge

at location 4 - 0 to 580 psig (0 to 4000 kpa)

Variable restrictorLOCALVariable restrictor2

at locations 2 and 12 - 1 in. (25.4 mm)

Variable restrictorLOCALVariable restrictor1

at location 2 - 1 1/2 in. (38.1 mm)

Cut-off cockLOCALCut-off cock3

Inlet and supply ducts

Oil reservoirLOCALOil reservoir

47.5 gal (180 l) filled for 3/4 and pressurized to 21 psia (145 kpa)

FilterLOCALFilter2

25 micron

FilterLOCALFilter2

12 micron

Supply oil ductsLOCALSupply oil ducts

Inner diameter 0.787 in. (20 mm)

Inlet oil ductsLOCALInlet oil ducts

Inner diameter 1.299 in. (33 mm)

Leakage capacity indicatorLOCALLeakage capacity indicator

0 to 305 cu in/min (0 to 5000 cc/min)

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-077 APPROVED ENGINE OILSLOCALCoMat 10-077

Spares

NONE

Safety Requirements

NONE

Procedure

  1. Testing of the oil pressure pump is subject to source demonstration requirements. This means than any facility which has not previously been authorized to do the test must utilize the testing facility of the OEM (Original Equipment Manufacturer) of the pump, or any authorized testing vendors listed here below.

  2. The source demonstration program for a new facility is required in order to correlate the oil pressure pump parameters of the new facility to those of the OEM. This is in order to determine acceptable parameters at which an oil pressure pump can be released as serviceable. The OEM is the sole source for correlation data in support of Source Demonstration Programs.

  3. Any facility not authorized to carry out testing may contact IAE Technical Services to determine if a qualification program can be initiated at their facility.

    International Aero Engines, AG
    400 Main Street
    M/S 121-10
    East Hartford, CT 06108
    USA
    Attn: Manager Technical Services

  4. The Original Equipment Manufacturer for the oil pressure pump is:

    AVIO - Divisone AvioService
    EF5Y829M
    Viale Impero angolo Viale Alfa
    80038 Pomigliano d'Arco (NA) - ITALY

  5. The Authorized Vendor for the oil pressure testing are listed below:

    GENERAL ELECTRIC ENGINE SERVICE-DALLAS, LP
    Accessory Services Engineering
    9311 Reeves ST. MD LF26
    Dallas, TX 75235-2095
    USA

    ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES (IHI) Co. LTD
    229 Tonogaya
    Mizuho-machi
    Nishitama-gun
    Tokyo 190-12
    JAPAN

  6. The designation by IAE of an authorized testing vendor indicates that the vendor has demonstrated the necessary capability to enable it to carry out the testing. However, IAE makes no warranties or representations concerning the qualifications or quality standards of the Vendor to carry out the testing and accepts no responsibility what so ever for any work that may be carried out by a Vendor, other than when IAE is listed as the vendor. Authorized vendors do not act as agents or representatives of IAE.

    7. SUBTASK 79-21-41-780-051 Set-up The Test Stand and the Oil Pressure Pump

    1. Remove the filter element from the oil pressure pump, if installed. Refer to Disassembly-000 TASK 79-21-41-060-401.

    2. Reinstall the filter cover on the oil pressure pump. Refer to Assembly-001 TASK 79-21-41-460-401.

    3. Lubricate the 2 packings (79-21-41,01-952) and install on the strainer (79-21-41,01-954).

    4. Install the strainer on the oil pressure pump.

    5. Lubricate the 4 packings (79-21-41,01-962) and install them on the sleeve (79-21-41,01-964).

    6. Install the sleeve on the oil pressure pump.

    7. Make sure that the trim valve is fully closed.

    8. Set up the test stand as shown in Figure.

    8. SUBTASK 79-21-41-780-052 Do the Running-In of the Oil Pressure Pump

      NOTE

      It is not necessary to do the run-in on pumps which have service running time.

      Do this test after:

      - Upgrade of the pump from P/N 4A7076 to P/N 4A0852

      - Replacement of the pump gears

      - Replacement of the bushes by VRS5310

    1. Refer to Figure.

      2. Running-in travel 1 (60 minutes).

      1. Increase the oil temperature to 104 deg F (40 deg C).

      2. Adjust the Cut-off cock on the reservoir to get a pump inlet pressure of 21 psia (145 KPa) on the Vacuum gauge.

      3. Open the trim valve by one turn counter-clockwise.

      4. Open fully the Variable restrictor .

      5. Start the variable speed motor and adjust pump speed to 1000 rpm.

      6. Operate the variable speed motor, refer to the cycle in Figure and record the results on the test data sheet. Refer to Figure.

      3. Running-in travel 2 (between 60 and 120 minutes).

      1. Adjust the heater to increase the oil temperature to 230 deg F (110 deg C).

      2. Operate the variable speed motor, refer to the cycle in Figure and record the results on the test data sheet. Refer to Figure. Monitor the increase in oil temperature.

      3. Adjust the Variable restrictor on the oil pressure pump outlet at the 105th minute to get 100 psig.

      4. Make sure that the oil temperature is 230 deg F (110 deg C) at the 120th minute of running-in. If it is not, wait until the temperature increases to the required value.

      4. Running-in travel 3 (between 120 and 165 minutes).

      1. Close the trim valve.

      2. Keep the oil temperature at 230 deg F (110 deg C).

      3. Adjust the oil pressure pump speed to 3000 rpm.

      4. Adjust the Variable restrictor to get a pump outlet pressure of 250 psig.

      5. Operate the variable speed motor, refer to the cycle in Figure and record the results on the test data sheet. Refer to Figure.

    9. SUBTASK 79-21-41-780-053 Do the Opening Test on the Relief Valve

    1. Refer to Figure.

    2. Close the trim valve.

    3. Make sure that the oil temperature is 230 deg F (110 deg C).

    4. Adjust the oil pressure pump speed to 2000 rpm.

    5. Make sure that the pump inlet pressure is 21 psia (145 kPa).

    6. Adjust slowly and continuously the Variable restrictor to get 340, 400 and 450 psig and record the results on the test data sheet. Refer to Figure.

    10. SUBTASK 79-21-41-780-054-A00 V2500-A1: Do the Setting of the Trim Valve

      (Pre SBE 79-0006)

      (Pre SBE 79-0071)

    1. Refer to Figure.

    2. Make sure that the oil temperature is 230 deg F (110 deg C).

    3. Adjust the oil pressure pump speed to 3125 rpm.

    4. Make sure that the pump inlet pressure P8 is 21 psia (145 kPa).

    5. Adjust the Variable restrictor, to get a pump outlet pressure P4 of 340 psig (2344 kPa).

    6. Adjust the Variable restrictor, to get a by-pass outlet pressure P13 between 20 and 25 psig (138 to 172 kPa).

    7. Make sure that P8, P4 and P13 pressures are all set at the same time as indicated in steps Step, Step, Step.

    8. Adjust the trim valve to get an oil flow of 26gal/min (98.4 l/min). Lock the trim valve.

    9. If the trim valve is fully closed and oil flow is less than 25.5 gal/min (96.5 l/min) reject the pump.

    10. Lock the trim valve with the lock nut. Torque to 290 to 370 ibfn (33 to 42 Nm).

    11. Test the pump as specified in Figure.

    11. SUBTASK 79-21-41-780-054-B00 V2500-A1: Do the Setting of the Trim Valve

      (SBE 79-0006)

      (SBE 79-0071)

    1. Refer to Figure, Figure and Figure.

    2. Make sure that the oil temperature is 230 deg F (110 deg C).

    3. Adjust the oil pressure pump speed to 3125 rpm.

    4. Make sure that the pump inlet pressure P8 is 21 psia (145 kPa).

    5. Adjust the Variable restrictor , to get a pump outlet pressure P4 of 340 psig (2344 kPa).

    6. Adjust the Variable restrictor o get a by-pass outlet pressure P13 between 20 and 25 psig (138 and 172 kPa).

      7. Make sure that P8, P4 and P13 pressures are set as indicated in steps Step, Step, and Step. and at the same time adjust the trim valve to get an oil flow of:

      1. 26.7 gal/min (101,1 l/min) on AVIO POMIGLIANO test stand.

    8. Lock the trim valve with the lock nut. Torque to 290 to 370 lbfin (33 to 42 Nm).

    9. Operate the variable speed motor and adjust the pump speed to the required values. Record the results on the appropriate test data sheet. Refer to Figure.

    10. Measure dimension L, refer to Figure and record it on the test data sheet, refer to Figure.

    12. SUBTASK 79-21-41-780-054-C00 V2500-A5: Do the Setting of the Trim Valve

    1. Refer to Figure, Figure and Figure.

    2. Make sure that the oil temperature is 230 deg F (110 deg C).

    3. Adjust the oil pressure pump speed to 3125 rpm.

    4. Make sure that the pump inlet pressure P8 is 21 psia (145 kPa).

    5. Adjust the Variable restrictor, to get a pump outlet pressure P4 of 340 psig (2344 kPa).

    6. Adjust the Variable restrictor, to get a by-pass outlet pressure P13 between 20 and 25 psig (138 and 172 kPa).

      7. Make sure that P8, P4 and P13 pressures are all set as indicated in steps Step, Step, and Step, and at the same time adjust the trim valve to get an oil flow of:

      1. 26.7 gal/min (101.1 l/min) on AVIO POMIGLIANO test stand.

    8. Lock the trim valve with the lock nut. Torque to 290 to 370 lbfin (33 to 42 Nm).

    9. Operate the variable speed motor and adjust the pump speed to the required values. Record the result on the appropriate test data sheet. Refer to Figure.

    10. Measure the dimension L, refer to Figure and record it on the test data sheet, refer to Figure.

    13. SUBTASK 79-21-41-780-055 Complete the Oil Pressure Pump Testing

    1. Refer to Figure.

    2. Turn the heater off.

    3. Operate the variable speed motor until the oil temperature decreases to 104 deg F (40 deg C). Refer to the cycle in Figure.

    4. Stop the variable speed motor.

    5. Allow the oil pressure pump to cool down.

    6. Remove the oil pressure pump from the test bench and drain the excess oil from the unit.

    7. Install the protective covers on the oil pressure pump openings.

    14. Figure: Hydraulic Pressure Test Set-Up

    Hydraulic Pressure Test Set-Up

    Figure: Running-In Cycle

    Running-In Cycle

    Figure: Oil pressure pump running-in test data sheet

    Oil pressure pump running-in test data sheet

    Figure: Relief Valve Open Test Data Sheet

    Relief Valve Open Test Data Sheet

    Figure: V2500-A1 (Pre Sbe 79-006 And Pre SBE 79-0071) Trim valve setting test data sheet

    V2500-A1 (Pre Sbe 79-006 And Pre SBE 79-0071) Trim valve setting test data sheet

    Figure: V2500-A1 (SBE 79-0006 and SBE 79-0071) and V2500-A5: Trim Valve Setting Test Data Sheet

    V2500-A1 (SBE 79-0006 and SBE 79-0071) and V2500-A5: Trim Valve Setting Test Data Sheet

    Figure: Measure The Dimension L

    Measure The Dimension L

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added part number (15VF816)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X333X
Supply Number:CoMat 10-077
Type:sp01
Supply Short Name:CoMat 10-077 APPROVED ENGINE OILS
Supply Name:CoMat 10-077 APPROVED ENGINE OILS
Specification Groups:
Doc NumberType
For V2500-A1/A5/D5 models - Refer to V2500 Service Bulletin ENG-79-0108
For V2500-E5 model - Refer to Service Bulletin E5-79-0001
Suppliers:
ManufacturerRemarks
X333X
Manufacturer Code:LOCAL
Tool Number:Cut-off cock
Tool Name:Cut-off cock
Manufacturer Code:LOCAL
Tool Number:Filter
Tool Name:Filter
Manufacturer Code:LOCAL
Tool Number:Flowmeter
Tool Name:Flowmeter
Manufacturer Code:LOCAL
Tool Number:Heat exchanger
Tool Name:Heat exchanger
Manufacturer Code:LOCAL
Tool Number:Inlet oil ducts
Tool Name:Inlet oil ducts
Manufacturer Code:LOCAL
Tool Number:Leakage capacity indicator
Tool Name:Leakage capacity indicator
Link not Found
Manufacturer Code:LOCAL
Tool Number:Motor Drive Unit
Tool Name:Motor Drive Unit
Manufacturer Code:LOCAL
Tool Number:Oil reservoir
Tool Name:Oil reservoir
Manufacturer Code:LOCAL
Tool Number:Pressure gauge
Tool Name:Pressure gauge
Manufacturer Code:LOCAL
Tool Number:Supply oil ducts
Tool Name:Supply oil ducts
Manufacturer Code:LOCAL
Tool Number:Temperature gauge
Tool Name:Temperature gauge
Manufacturer Code:LOCAL
Tool Number:Torquemeter
Tool Name:Torquemeter
Manufacturer Code:LOCAL
Tool Number:Vacuum gauge
Tool Name:Vacuum gauge
Manufacturer Code:LOCAL
Tool Number:Variable restrictor
Tool Name:Variable restrictor