TASK 72-00-60-450-002-B00 External Gearbox Components - Install The Fuel Metering Unit (FMU), Installation-006

DMC:V2500-A5-72-00-6050-01C-720A-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 72-00-60-450-002-B00 External Gearbox Components - Install The Fuel Metering Unit (FMU), Installation-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.

Assembly tolerances are included in this procedure.

Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure.

Special torque data is identified with the symbol * after the torque value.

For standard torque data and procedures, refer to the SPM TASK 70-41-00-400-501, SPM TASK 70-41-01-400-501 and SPM TASK 70-41-02-400-501.

To identify, lubricate and install seal rings refer to the SPM TASK 70-44-01-400-501.

For lockwire data and procedures refer to the SPM TASK 70-42-05-400-501.

For safety cable data and procedures refer to the SPM TASK 70-42-08-400-501.

Safety the threaded fasteners in the ATA Chapter/Section/Subject 71-51-41 as applicable with CoMat 02-274 SAFETY CABLE KIT or CoMat 02-275 SAFETY CABLE KIT.

After assembly apply CoMat 07-038 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and attach parts. Use the correct color of air drying enamel. Refer to the SPM TASK 70-38-21-380-501.

Transportation covers/blanks must not be removed until immediately before installation of the components.

Do not remove the special plastic caps from electrical connections until immediately before installation. This will give protection from unwanted material.

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

NOTE

To identify the consumable materials refer to the PCI.
SBE 70-0813 : Announcement of introduction of safety cable as a preferred method to lockwire.
Safety the threaded fasteners in this TASK with safety cable for the ATA Chapter/Section/Subject detailed in 2. General.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 02-126 LOCKWIRELOCALCoMat 02-126
CoMat 02-148 ADHESIVE TAPE (ELECTRICAL)LOCALCoMat 02-148
CoMat 02-274 SAFETY CABLE KITLOCALCoMat 02-274
CoMat 02-275 SAFETY CABLE KITLOCALCoMat 02-275
CoMat 07-038 AIR DRYING ENAMELK3504CoMat 07-038
CoMat 10-038 PETROLEUM JELLYLOCALCoMat 10-038
CoMat 10-039 ENGINE OILLOCALCoMat 10-039
CoMat 10-060 LIQUID PARAFFINLOCALCoMat 10-060
CoMat 10-077 APPROVED ENGINE OILSLOCALCoMat 10-077

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Sealing ring1
Sealing ring1
Packing2
Packing1
Packing1
Sealing ring2
Sealing ring1
Sealing ring1
Sealing ring1

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-60-450-121 Install the Fuel Metering Unit

    1. Refer to Figure.

    2. WARNING

      WHEN YOU USE CoMat 01-124 ISOPROPYL ALCOHOL YOU MUST USE THE NECESSARY PROTECTIVE CLOTHING. DO NOT GET THE SOLVENT ON YOUR SKIN OR IN YOUR EYES. YOU MUST NOT SMOKE WHEN YOU USE THE SOLVENT AS THE VAPOUR CHANGES AND BECOMES TOXIC.

      Clean the mating faces at the FMU and the fuel pump with CoMat 01-124 ISOPROPYL ALCOHOL.

    3. Lightly lubricate a new Fuel Metering Unit (73-22-52, 01-130) sealing ring 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY and install it on the FMU inlet port (See Figure).

    4. Attach the FMU to the fuel pump with the four bolts Fuel Metering Unit (73-22-52, 01-120) and torque the bolts to 180 to 220 lbfin (20 to 25 Nm).

    2. SUBTASK 72-00-60-450-122 Install the HP Fuel Supply Tube (109) and Connect the Fuel Drain Tube (225)

    1. Refer to Figure and Figure.

    2. Connect the drain tube 225 POWER PLANT-FUEL DRAIN TUBES-POWER PLANT (71-71-48, 02-500) to the FMU and torque the tube connector to 159 to 177 lbfin (18 to 20 Nm). Safety with CoMat 02-126 LOCKWIRE (see Figure).

    3. Lightly lubricate the new ENGINE FUEL AND CONTROL-FUEL SYSTEM TUBES-ENGINE (73-11-49, 07-108) packing 2 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY and install them on the tube 109 (73-1-49, 07-100).

    4. Attach the tube 109 to the FMU and the Fuel Flow Transmitter, together with the bracket ENGINE FUEL AND CONTROL-FUEL SYSTEM TUBES-ENGINE (73-11-49, 07-070), with the six bolts ENGINE FUEL AND CONTROL-FUEL SYSTEM TUBES-ENGINE (73-11-49, 07-106). Torque the bolts to 85 to 105 lbfin (10 to 12 Nm).

    5. Assemble the clip position 0322 and torque the bolt to 36 to 45 lbfin (4 to 5 Nm), see Figure.

    3. SUBTASK 72-00-60-450-123 Install the Fuel Servo Return Tube (103) (Pre SBE 79-0047 and SBE 79-0047)

    1. Refer to Figure and Figure.

    2. SBE 79-0047: Replacement of pressure indicating tubes.

    3. Lightly lubricate a new Control Fuel Tubes (73-11-49, 20-516) packing 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY and install it on the tube 103 Control Fuel Tubes (73-11-49, 20-500). See Figure.

    4. Loosely connect the tube 103 to the fuel tube 106 and attach it to the FMU with the three bolts Control Fuel Tubes (73-11-49, 20-514).

    5. Torque the three bolts to 85 to 105 lbfin (10 to 12 Nm) and torque the tube connector to 283 to 310 lbfin (32 to 35 Nm). Safety with CoMat 02-126 LOCKWIRE.

    6. Assemble the clip positions 1134 and 1131 and torque the nuts and the bolt to 36 to 45 lbfin (4 to 5 Nm). See Figure.

    7. SBE 79-0047: Assemble clip position 1397. Torque the bolts to 36 to 45 lbfin (4 to 5 Nm).

    4. SUBTASK 72-00-60-450-065 Install the HP Fuel Servo Tube (89)

    1. Refer to Figure and Figure.

    2. Lightly lubricate a new Control Fuel Tubes (73-11-49, 10-108) packing 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY . Install the packing on the tube 89 Control Fuel Tubes (73-11-49, 10-100). See Figure.

    3. Loosely connect the tube 89 to the tube 93 and attach it to the FMU with the three bolts Control Fuel Tubes (73-11-49, 10-106).

    4. Torque the three bolts to 85 to 105 lbfin (10 to 12 Nm) and torque the tube connector to 283 to 310 lbfin (32 to 35 Nm). Safety with CoMat 02-126 LOCKWIRE.

    5. Connect the tube 187 to the tube 89 and torque the tube connector to 159 to 177 lbfin (18 to 20 Nm). Safety with CoMat 02-126 LOCKWIRE.

    6. Connect the tube 91 to the tube 89 and torque the tube connector to 159 to 177 lbfin (18 to 20 Nm). Safety with CoMat 02-126 LOCKWIRE.

    7. Assemble the clip positions 0253, 1040 and 1136 and torque the nut and the bolt to 36 to 45 lbfin (4 to 5 Nm). See Figure.

    5. SUBTASK 72-00-60-450-124 Install the LP Fuel Tube (90)

    1. Refer to Figure.

    2. Connect the tube 90 ENGINE FUEL AND CONTROL-FUEL SYSTEM TUBES-ENGINE (73-11-49, 06-100) to the FMU and theLP fuel pump. Torque the tube connectors to 159 to 177 lbfin (18 to 20 Nm). Safety with CoMat 02-126 LOCKWIRE.

    6. SUBTASK 72-00-60-450-125 Install the LP Fuel Tubes (102 and 116)

    1. Refer to Figure, Figure and Figure.

      2. Install the tube 102 Control Fuel Tubes (73-11-49, 05-100).

      1. Lightly lubricate a new Control Fuel Tubes (73-11-49, 05-108) sealing ring 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY and install it on the fuel filter connector of the tube 102 (see Figure).

      2. Ligthly lubricate a new Control Fuel Tubes (73-11-49, 05-116) sealing ring 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY.

      3. Attach the tube 102 to the fuel filter with the three bolts Control Fuel Tubes (73-11-49, 05-106) and to the fuel pump with the four bolts Control Fuel Tubes (73-11-49, 05-114). Torque the bolts to 85 to 105 lbfin (10 to 12 Nm).

      3. Install the tube 116 Control Fuel Tubes (73-11-49, 26-100).

      1. Lightly lubricate a new Control Fuel Tubes (73-11-49, 26-108) sealing ring 1 off with CoMat 10-060 LIQUID PARAFFIN or CoMat 10-038 PETROLEUM JELLY and install it on the tube 116.

      2. Lightly lubricate a new Control Fuel Tubes (73-11-49, 26-116) sealing ring 1 off and install it on the seal housing Control Fuel Tubes (73-11-49, 26-085).

      3. Lightly lubricate the new Control Fuel Tubes (73-11-49, 26-098) sealing rings 2 off and install them on the tube 116.

      4. Put the tube 116 in position and attach it to the fuel diverter valve (together with the seal housing) with the two bolts Control Fuel Tubes (73-11-49, 26-114). Attach the tube to the FMU with the three bolts Control Fuel Tubes (73-11-49, 26-106). Torque the bolts to 85 to 105 lbfin (10 to 12 Nm).

    4. Assemble the clip positions 1072, 0789, 0921, 0795 and 0922 and torque the nuts and the bolts to 36 to 45 lbfin (4 to 5 Nm). See Figure and Figure.

    7. SUBTASK 72-00-60-450-126 Electrical Harness Installation Procedure

    1. During the installation procedure make sure the harnesses are held temporarily along their different lengths. Always install the datum clip positions when you install each electrical connector. This will give correct installation of the different harnesses, prevent too much strain on the electrical connectors and give the necessary drip loops (the drip loop makes sure moisture or fluids do not go in to the electrical connector).

    2. Because of the differences between the harness diameters, the specified clip could be too large or too small. You can use a clip from a range of six clips that have the same part number. If the harness diameter is between two of the clips in the range, use the larger clip. When you do this use CoMat 02-148 ADHESIVE TAPE (ELECTRICAL) to increase the harness diameter.

    8. SUBTASK 72-00-60-450-127 Connect the Electrical Harness to the FMU

    1. Refer to Figure and Figure.

    2. Connect the general services electrical connector 4000KC-A to the FMU and torque to 13 * lbfin (1.5 Nm).

    3. Connect the two EEC harness electrical connectors 4000KC-B and 4000KC-C to the FMU and torque to 20 * lbfin (2.3 Nm).

    4. Assemble the clip positions 1070 and 1071 and torque the nuts to 36 to 45 lbfin (4 to 5 Nm).

    9. SUBTASK 72-00-60-220-087 Measure the Harness Clearances and Examine the Harness Routing

    1. Refer to Figure.

      2. Measure the clearance between all the different harnesses and the engine parts:

      1. The general clearance must be a minimum of 0.250 in. (6.35 mm).

      2. A minimum clearance of 0.100 in. (2.54 mm) is necessary between the EEC harness EEC Fan Harness (71-51-41, 01-005), the IDG oil cooler and the tubes in the area shown in Figure.

      3. To check the clearance, push the harness with a light pressure of the thumb then release. The harness must spring back and give the minimum clearance. The harness must not move through the adjacent clips (refer to Step).

      4. The harness can touch the smooth parts of brackets if the harness is clipped to them. The harness must be held so there is no movement between the harness and the bracket.

    3. Adjust the harness (if necessary) to get the minimum clearance and torque the clip position nut or bolt to 36 to 45 lbfin (4 to 5 Nm).

    10. SUBTASK 72-00-60-210-070 Visually Inspect the Electrical Backshells and Cable Clamps

    1. Refer to Figure.

    2. Make sure that all the applicable connectors, backshells and cable clamps are secure.

    3. Make sure that all the applicable backshells and cable clamps are safetied with CoMat 02-126 LOCKWIRE. Refer to the SPM TASK 70-42-05-400-501.

    11. SUBTASK 72-00-60-210-071 Visually Inspect the EEC Harness (01-005) Electrical Backshells and Cable Clamps (SBE 70-0813)

    1. SBE 70-0813: Announcement of introduction of safety cable as a preferred method to lockwire.

    2. NOTE

      Use this procedure to safety the EEC harness backshells and cable clamps with safety cable.

      Refer to Figure.

    3. Make sure that all the EEC harness connectors, backshells and cable clamps are secure.

    4. Make sure that all the EEC harness backshells and cable clamps are safetied. Safety with CoMat 02-274 SAFETY CABLE KIT or with CoMat 02-275 SAFETY CABLE KIT. Refer to the SPM TASK 70-42-08-400-501.

    12. Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Install the fuel metering unit

    Install the fuel metering unit

    Figure: Examine the harness routing

    Examine the harness routing

    Figure: Visually inspect the backshells and cable clamps

    Visually inspect the backshells and cable clamps

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
Manufacturer Code:K3504
Enterprise Name:INDESTRUCTIBLE PAINT CO LTD
BU Name:NULL
Street:25 PENTOS DRIVE
City:SPARKHILL
Province:BIRMINGHAM
Zip Code:B11 3TA
Country:GREAT BRITAIN
Phone Number:44-121-7022485
Fax Number:44-121-7784338
Email:sales@indestructible.co.uk
Internet:www.indestructible.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 01-124
Type:sp01
Supply Short Name:CoMat 01-124 ISOPROPYL ALCOHOL
Supply Name:CoMat 01-124 ISOPROPYL ALCOHOL
Specification Groups:
Doc NumberType
OMAT:1/40GPR TECHNICAL GRADE
PMC 9094GPR TECHNICAL GRADE
JCR-011GPR TECHNICAL GRADE
Suppliers:
ManufacturerRemarks
LOCAL
U1185
24853
K6835
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:LOCAL
Supply Number:CoMat 02-148
Type:sp01
Supply Short Name:CoMat 02-148 ADHESIVE TAPE (ELECTRICAL)
Supply Name:CoMat 02-148 ADHESIVE TAPE (ELECTRICAL)
Specification Groups:
Doc NumberType
OMAT: 296SCOTCH NO. 69 (WHITE)
Suppliers:
ManufacturerRemarks
LOCAL
76381
94960
K0993
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 02-274
Type:sp01
Supply Short Name:CoMat 02-274 SAFETY CABLE KIT
Supply Name:CoMat 02-274 SAFETY CABLE KIT
Specification Groups:
Doc NumberType
SAE AS3510-0218K (DIA 0,032 IN LENGTH 18IN)
Suppliers:
ManufacturerRemarks
LOCAL
11851
U0419
70958
H7503
SA221
V384V
Manufacturer Code:X111X
Supply Number:CoMat 02-275
Type:sp01
Supply Short Name:CoMat 02-275 SAFETY CABLE KIT
Supply Name:CoMat 02-275 SAFETY CABLE KIT
Specification Groups:
Doc NumberType
Deleted. Use CoMat 02-274.
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:00BB6
Supply Number:CoMat 07-038
Type:sp01
Supply Short Name:CoMat 07-038 AIR DRYING ENAMEL
Supply Name:CoMat 07-038 AIR DRYING ENAMEL
Specification Groups:
Doc NumberType
OMAT:7/22B (RR REF)IP9138 R1
JCR-029 (JAEC REF)
Suppliers:
ManufacturerRemarks
00BB6
K3504
Manufacturer Code:K6835
Supply Number:CoMat 10-038
Type:sp01
Supply Short Name:CoMat 10-038 PETROLEUM JELLY
Supply Name:CoMat 10-038 PETROLEUM JELLY
Specification Groups:
Doc NumberType
SILKOLENE 775 CERTIFIED TO DEF STAN 91-38 GRADE PX-7 OR TO NATO S-743
Suppliers:
ManufacturerRemarks
K6835
U1757
Manufacturer Code:LOCAL
Supply Number:CoMat 10-039
Type:sp01
Supply Short Name:
Supply Name:CoMat 10-039 ENGINE OIL
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Supply Number:CoMat 10-060
Type:sp01
Supply Short Name:CoMat 10-060 LIQUID PARAFFIN
Supply Name:CoMat 10-060 LIQUID PARAFFIN
Specification Groups:
Doc NumberType
OMAT:CoMat 1020BP TECHNICAL WHITE OIL
Suppliers:
ManufacturerRemarks
LOCAL
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