TASK 72-00-60-050-002-B00 External Gearbox Components - Remove The Fuel Metering Unit (FMU), Removal-006

DMC:V2500-A5-72-00-6050-03B-520A-B|Issue No:001.00|Issue Date:2013-11-01

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

V2500-A5

Common Information

TASK 72-00-60-050-002-B00 External Gearbox Components - Remove The Fuel Metering Unit (FMU), Removal-006

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.

For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.

Apply the approved CoMat 10-058 PENETRATING OIL before the removal of threaded parts. Let the parts soak before removal.

Remove and discard the lockwire before the tube or connector is disconnected.

When electrical connections are disconnected, special plastic caps must be installed.

Seal all openings to prevent contamination from unwanted materials.

Discard all rubber seal rings removed in this procedure.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 06-086 TIES18992CoMat 06-086
CoMat 10-058 PENETRATING OIL0AM53CoMat 10-058

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-60-050-129 Electrically Disconnect the FMU

    1. Refer to Figure.

    2. Disconnect the electrical connectors 4000KC-A, 4000KC-B and 4000KC-C from the FMU (see Figure).

    3. Remove the nuts, bolts, washers and clips from the clip positions 1070 and 1071.

    4. Temporarily attach the EEC harness clear of the FMU with CoMat 06-086 TIES.

    2. SUBTASK 72-00-60-050-130 Remove the LP Fuel Tubes (102 and 116)

    1. Refer to Figure and Figure.

    2. Remove the nuts, bolts, clipnuts, washers and spacers from the clip positions 1072, 0789, 0921, 0795 and 0922 (see Figure).

    3. With an applicable container in position remove the tube closure nut from the tube 104 (see Figure) and drain the fuel. Install the tube closure nut.

      4. Remove the tube 116.

      1. NOTE

        Some fuel drainage could still occur during this procedure. It is recommended that an applicable container be available.

        Remove the three bolts that attach the tube 116 to the FMU and remove the sealing ring.

      2. Remove the two bolts that attach the tube 116 to the Fuel Diverter Valve. Remove the seal housing and the three sealing rings.

      3. Remove the tube 116.

      5. Remove the tube 102.

      1. NOTE

        Some fuel drainage could still occur during this procedure. It is recommended that an applicable container be available.

        Remove the four bolts that attach the tube 102 to the fuel pump and remove the sealing ring.

      2. Remove the three bolts that attach the tube 102 to the fuel filter and remove the sealing ring.

      3. Remove the tube 102.

    3. SUBTASK 72-00-60-050-131 Remove the LP Fuel Tube (90) and the Fuel Pump Drain Tube (104)

    1. Refer to Figure.

    2. Disconnect the tube 90 from the FMU and the fuel pump tee piece and remove the tube 90.

    4. SUBTASK 72-00-60-050-132 Remove the HP Fuel Servo Tube (89)

      NOTE

      Some fuel drainage could occur during this procedure. It is recommended that an applicable container be available.

    1. Refer to Figure.

    2. Remove the bolts, nut, clipnut and washers from the clip positions 0253, 1040 and 1136.

    3. Disconnect the fuel servo tubes 187 and 91 from the tube 89.

    4. Disconnect the tube 89 from the tube 93 (see Figure).

    5. Remove the three bolts that attach the tube 89 to the FMU. Remove the tube 89 and remove the packing.

    5. SUBTASK 72-00-60-050-133 Remove the Fuel Servo Return Tube (103) (Pre SBE 79-0047 and SBE 79-0047)

      SBE 79-0047: Replacement of pressure indicating tubes

      NOTE

      Some fuel drainage could occur during this procedure. It is recommended that an applicable container be available.

    1. Refer to Figure.

    2. Remove the nuts, bolts, clipnut and washers from the clip positions 1134 and 1131.

    3. SBE 79-0047: Remove the nut, bolt, washer, spacer and clips from the clip position 1397.

    4. Disconnect the tube 103 from the tube 106.

    5. Remove the three bolts that attach the tube 103 to the FMU. Remove the tube 103 and remove the packing.

    6. SUBTASK 72-00-60-050-134 Remove the HP Fuel Supply Tube (109) and Disconnect the Fuel Drain Tube (225)

      NOTE

      Some fuel drainage could occur during this procedure. It is recommended that an applicable container be available.

    1. Refer to Fig. 72-00-60-900-078-012.

    2. Remove the bolt, clipnut and washer from the clip position 0322 (see Figure).

    3. Disconnect the drain tube 225 from the FMU.

      4. Remove the tube 109.

      1. Remove the three bolts that attach the tube 109 to the FMU.

      2. Remove the three bolts that attach the tube 109 to the Fuel Flow Transmitter. Remove the bracket ENGINE FUEL AND CONTROL-FUEL SYSTEM TUBES-ENGINE (73-11-49, 07-070), the tube 109 and the two packings.

    7. SUBTASK 72-00-60-050-135 Remove the Fuel Metering Unit

      WARNING

      BE CAREFUL DURING REMOVAL OF THE FMU BECAUSE IT WEIGHS 20LB (9KG).

      NOTE

      Some fuel drainage could occur during this procedure. It is recommended that an applicable container be available.

    1. Refer to Figure.

    2. NOTE

      The FMU must have its maintenance completed, as given in the Lucas Component Maintenance Manual (73-22-52).

      Hold the weight of the FMU and remove the four bolts that attach the FMU to the fuel pump. Remove the FMU and remove the sealing ring (see Figure).

    3. Install the applicable blanks to the FMU, the external gearbox and the tubes.

    8. Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

    Figure: Remove the fuel metering unit

    Remove the fuel metering unit

Requirements After Job Completion

Follow-On Conditions

NONE
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:18992
Enterprise Name:HANSCOM INC
BU Name:HANSCOM INC
Street:331 MARKET STREET
P.O. Box:364
City:WARREN
State:RI
Zip Code:02885
Country:USA
Phone Number:1-401-247-1999, 1-800-725-6788
Fax Number:1-401-247-4575
Internet:www.hanscominc.com
Manufacturer Code:18992
Supply Number:CoMat 06-086
Type:sp01
Supply Short Name:CoMat 06-086 TIES
Supply Name:CoMat 06-086 TIES
Specification Groups:
Doc NumberType
PMC 4272SPECIAL WIRE TIES
Suppliers:
ManufacturerRemarks
18992
Manufacturer Code:X222X
Supply Number:CoMat 10-058
Type:sp01
Supply Short Name:CoMat 10-058 PENETRATING OIL
Supply Name:CoMat 10-058 PENETRATING OIL
Suppliers:
ManufacturerRemarks
X222X