TASK 73-13-41-700-201 Fuel Nozzle And Support Assembly - Test The Fuel Nozzle

DMC:V2500-A0-73-13-4100-00A-320A-C|Issue No:002.00|Issue Date:2016-07-15

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 73-13-41-700-201 Fuel Nozzle And Support Assembly - Test The Fuel Nozzle

Effectivity

FIG/ITEM

PART NO.

01-020

2A0994

01-020

2A1637

01-020

2A2250

01-020

2A3448

01-020

2A3453

General

Keep the CoMat 10-069 CALIBRATING FLUID at 78 deg F to 82 deg F (26 deg C to 28 deg C) at the fuel inlet fitting during all the tests.

The calibration fluid limits shown in Figure or Figure are the correct fuel flows. The fuel flows you measure must be corrected for flow meter error.

Install the IAE 1P16168 Leak test adapter onto the fuel inlet for all the tests.

Dry the parts before you do the initial nitrogen pressure test.

Complete the leakage test first. Do the tests in the sequence specified.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Flow benchLOCALFlow bench

Approved for 30 to 550 pph (13,6 to 250 kg per hr) test fluid at 2 to 800 psig (13,8 to 5515,8 kPa) supply pressure.

Flow meterLOCALFlow meter

With range of 30 to 550 pph (13,6 to 250 kg per hr). Use correction curve if the error is greater than range.

Gage ILOCALGage I

Calibration fluid inlet pressure (PI) - Gage to measure 0 to 600 psig (0 to 4136,9 kPa). Accurate to range.

Gage IILOCALGage II

Calibration fluid inlet pressure (PI) - Gage to measure 0 to 25 psig (0 to 172,4 kPa). Accurate to range.

GageLOCALGage

Nitrogen pressure (PN) - Gage to measure 0 to 250 psig (0 to 1723,7 kPa). Accurate to kPa.

GageLOCALGage

Calibration fluid temperature (TI) - Gage to measure calibration fluid temperature at inlet fitting. Range of 75 to 85 deg F (23,9 to 29,4 deg C), accurate to readings.

Heat exchangerLOCALHeat exchanger

To keep test fluid at 78 to 82 deg F (26 to 28 deg C) at inlet fitting.

Nitrogen sourceLOCALNitrogen source

250 psig (1723,7 kPa) zero flow.

IAE 1P16168 Leak test adapter0AM53IAE 1P161681
IAE 1P16169 Leak test clamp0AM53IAE 1P161691

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-069 CALIBRATING FLUIDLOCALCoMat 10-069

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 73-13-41-790-051 Do the Leak Test on the Fuel Nozzle and Support Assembly

    1. CAUTION

      THE ASSEMBLY MUST BE FULLY DRY BEFORE YOU APPLY NITROGEN IN THE LEAKAGE TEST. DO NOT PUT THE ASSEMBLY INTO THE CALIBRATION FLUID BEFORE PRESSURIZATION. THE CALIBRATION FLUID COULD GO INTO THE ASSEMBLY AND CAUSE INCORRECT LEAK TEST RESULTS.

      Install the assembly in the IAE 1P16169 Leak test clamp. Make sure that the stepped plug and seal ring (details of clamp) are correctly set at fuel nozzle discharge.

    2. Apply the nitrogen at 10 psig (68.9 kpa) to the adapter.

      NOTE

      If sufficient precautions have been obeyed, do not do the preliminary pressure build-up. Assembly may be pressurized to 200 psig (1379 kpa) before you put the assembly into the test fluid. Refer to Step.

    3. Put the assembly into the test fluid.

    4. CAUTION

      THE PRESSURE OF THE NITROGEN IS VERY HIGH. WEAR A FACE SHIELD, GOGGLES AND PROTECTIVE CLOTHING.

      Increase the nitrogen pressure to 200 psig (1379 kpa) and inspect all the brazed and welded joints for leakage for a minimum of one minute. Any leakage (bubbles) is not permitted.

    5. Put the nitrogen pressure to zero and remove the clamp.

    6. If you find any leakage, reject the assembly.

    2. SUBTASK 73-13-41-730-051 Do the Fuel Flow Test on the Fuel Nozzle and Support Assembly

    1. Connect the fuel nozzle and support assembly to the section of the test stand that measures pressure (hoses thread onto the IAE 1P16168 Leak test adapter).

      2. Flow the assembly. Refer to Figure or Figure.

      1. Make sure the calibration fluid temperature stays at 78 deg F to 82 deg F (26 deg C to 28 deg C) during all flow calibrations.

      2. Write down the inlet pressure (PI), the fuel flow (WF) and the calibration fluid temperature (TI) at each test point.

      3. Let the system become stable for one minute at each test point before you write down the results.

      3. Set the inlet pressure (PI) and write down the fuel flow (WF). Refer to the table.

      1. Set the inlet pressure (PI) to test point 1. Record the fuel flow (WF), calibration fluid inlet temperature (TI) and inlet pressure (PI).

      2. Slowly and continuously decrease the inlet pressure (PI) to test point 2. Write down the fuel flow (WF), the calibration fluid inlet temperature (TI) and the inlet pressure (PI).

    4. The fuel flow (WF) must be within the limits. Refer to Figure or Figure.

    5. Remove the adapter from the fuel inlet connector.

      6. If fuel flow (WF) is low:

      1. Unwanted material is in the fuel passage. Refer to Cleaning-001 TASK 73-13-41-100-201.

      2. Do the flow test again. Refer to Step.

      3. If the fuel flow (WF) is still low, reject the assembly.

      7. If the fuel flow (WF) is high:

      1. The fuel metering plug is eroded and must be replaced. Refer to Repair, VRS3458 TASK 73-13-41-300-002 (Repair-002).

    3. Figure: Flow Test Limits Table (PN 2A0994, 2A1637 and 2A3453)

    Flow Test Limits Table (PN 2A0994, 2A1637 and 2A3453)

    Figure: Flow Test Limits Table (PN 2A2250 and 2A3448)

    Flow Test Limits Table (PN 2A2250 and 2A3448)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figure 1 to add part number 2A3453 and figure 2 to add part number 2A3448. (16VC060)

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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 10-069
Type:sp01
Supply Short Name:CoMat 10-069 CALIBRATING FLUID
Supply Name:CoMat 10-069 CALIBRATING FLUID
Specification Groups:
Doc NumberType
PMC 9041MIL-PRF-7024 TYPE II
Suppliers:
ManufacturerRemarks
LOCAL
81349
Manufacturer Code:LOCAL
Tool Number:Flow bench
Tool Name:Flow bench
Manufacturer Code:LOCAL
Tool Number:Flow meter
Tool Name:Flow meter
Manufacturer Code:LOCAL
Tool Number:Gage II
Tool Name:Gage II
Manufacturer Code:LOCAL
Tool Number:Gage I
Tool Name:Gage I
Manufacturer Code:LOCAL
Tool Number:Gage
Tool Name:Gage
Manufacturer Code:LOCAL
Tool Number:Heat exchanger
Tool Name:Heat exchanger
Manufacturer Code:0AM53
Tool Number:IAE 1P16168
Tool Name:IAE 1P16168 Leak test adapter
Manufacturer Code:0AM53
Tool Number:IAE 1P16169
Tool Name:IAE 1P16169 Leak test clamp
Manufacturer Code:LOCAL
Tool Number:Nitrogen source
Tool Name:Nitrogen source