TASK 72-00-50-450-001 LPT Module Components - Install The Exhaust Gas Temperature (EGT) Thermocouple, Installation-010

DMC:V2500-A0-72-00-5050-00A-720A-B|Issue No:003.00|Issue Date:2015-05-01

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 72-00-50-450-001 LPT Module Components - Install The Exhaust Gas Temperature (EGT) Thermocouple, Installation-010

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.

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

Special torque data and assembly tolerances are included in the procedure.

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

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

After assembly apply CoMat 07-012 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and attach parts. Use the correct color of air drying enamel. Refer to SPM TASK 70-38-06-380-501 .

The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless stated differently in the procedure.

Transportation covers/blanks must be removed immediately before the installation of the component.

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 02-141 LOCKWIRELOCALCoMat 02-141
CoMat 07-012 AIR DRYING ENAMEL0AM53CoMat 07-012
CoMat 10-077 APPROVED ENGINE OILSLOCALCoMat 10-077

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Piston ring8

(V2500-A1)

Metal seal ring8

(V2500-A5)

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-50-420-179-A00 V2500-A1 Install the EGT Thermocouples

    1. NOTE

      The EGT thermocouples are installed through the vanes numbers 3, 6, 8 and 11 of the turbine exhaust case.

      Refer to Figure.

    2. Install the two new V2500-A5-77-21-15-01A-941A-D (77-21-15, 01-140) piston rings 8 off, into the outer diameter groove of the thermocouple. Make sure that the opening in each of the rings are in opposite positions.

    3. Install the V2500-A5-77-21-15-01A-941A-D (77-21-15, 01-100) thermocouple into the case. Align the bolt holes in the thermocouple with the bolt holes on the case boss.

    4. Install the two V2500-A5-77-21-15-01A-941A-D (77-21-15, 01-120) bolts.

    5. Torque the bolts to 85 to 105 lbfin (10 to 12 Nm).

    6. CAUTION

      MAKE SURE THE SAFETY WIRE DOES NOT TOUCH THE THERMOCOUPLE STUDS OR THE EGT HARNESS LEADS. THIS CAN CAUSE ERRATIC OR UNRELIABLE EGT INDICATION.

      Safety the bolts with CoMat 02-141 LOCKWIRE.

    7. Connect the thermocouple harness leads to the thermocouple and attach with the washer and nuts.

    8. CAUTION

      DO NOT USE LUBRICATION ON THE THREADS OF THE THERMOCOUPLE CONNECTIONS. ENGINE OIL CAN CONTAMINATE THE EGT HARNESS INSULATION MATERIAL AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      CAUTION

      DO NOT TIGHTEN THE NUTS MORE THAN THE MAXIMUM TORQUE. TOO MUCH TORQUE CAN DAMAGE THE THERMOCOUPLE STUDS AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      Torque the alumel connection (larger stud) to between 18 and 22 lbfin (2.034 and 2.486 Nm).

    9. Do the procedure again for the other three thermocouples.

    10. CAUTION

      DO NOT USE LUBRICATION ON THE THREADS OF THE THERMOCOUPLE CONNECTIONS. ENGINE OIL CAN CONTAMINATE THE EGT HARNESS INSULATION MATERIAL AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      CAUTION

      DO NOT TIGHTEN THE NUTS MORE THAN THE MAXIMUM TORQUE. TOO MUCH TORQUE CAN DAMAGE THE THERMOCOUPLE STUDS AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      Torque the chromel connection (smaller stud) to between 15 and 18 lbfin (1.695 and 2.034 Nm).

    11. Do the procedure again for the other three thermocouples.

    2. SUBTASK 72-00-50-420-179-B00 V2500-A5 Install the EGT Thermocouples

    1. NOTE

      The EGT thermocouples are installed through the vanes numbers 3, 6, 8 and 11 of the turbine exhaust case.

      Refer to Figure.

    2. Install the two new ENGINE INDICATING-EGT THERMOCOUPLE(77-21-15,20-140) metal seal rings 8 off, into the outer diameter groove of the thermocouple. Make sure that the opening in each of the rings are in opposite positions.

    3. Install the ENGINE INDICATING-EGT THERMOCOUPLE (77-21-15, 20-100) thermocouple into the case. Align the bolt holes in the thermocouple with the bolt holes on the case boss.

    4. Install the two ENGINE INDICATING-EGT THERMOCOUPLE (77-21-15, 20-120) bolts.

    5. Torque the bolts to 85 to 105 lbfin (10 to 12 Nm).

    6. CAUTION

      MAKE SURE THE SAFETY WIRE DOES NOT TOUCH THE THERMOCOUPLE STUDS OR THE EGT HARNESS LEADS. THIS CAN CAUSE ERRATIC OR UNRELIABLE EGT INDICATION.

      Safety the bolts with CoMat 02-141 LOCKWIRE.

    7. Connect the thermocouple harness leads to the thermocouple and attach with the washer and nuts.

    8. CAUTION

      DO NOT USE LUBRICATION ON THE THREADS OF THE THERMOCOUPLE CONNECTIONS. ENGINE OIL CAN CONTAMINATE THE EGT HARNESS INSULATION MATERIAL AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      CAUTION

      DO NOT TIGHTEN THE NUTS MORE THAN THE MAXIMUM TORQUE. TOO MUCH TORQUE CAN DAMAGE THE THERMOCOUPLE STUDS AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      Torque the alumel connection (larger stud) to between 18 and 22 lbfin (2.034 and 2.486 Nm).

    9. Do the procedure again for the other three thermocouples.

    10. CAUTION

      DO NOT USE LUBRICATION ON THE THREADS OF THE THERMOCOUPLE CONNECTIONS. ENGINE OIL CAN CONTAMINATE THE EGT HARNESS INSULATION MATERIAL AND RESULT IN ERRATIC OR UNRELIABLE EGT INDICATION.

      CAUTION

      DO NOT TIGHTEN THE NUTS MORE THAN THE MAXIMUM TORQUE. TOO MUCH TORQUE CAN DAMAGE THE THERMOCOUPLE STUDS AND RESULT IN ERRATIC OR UNRELIABLE INDICATION.

      Torque the chromel connection (smaller stud) to between 15 and 18 lbfin (1.695 and 2.034 Nm).

    11. Do the procedure again for the other three thermocouples.

    3. Figure: V2500-A1 Install the Exhaust Gas Temperature (EGT) Thermocouple

    V2500-A1 Install the Exhaust Gas Temperature (EGT) Thermocouple

    Figure: V2500-A5 Install the Exhaust Gas Temperature (EGT) Thermocouple

    V2500-A5 Install the Exhaust Gas Temperature (EGT) Thermocouple

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

Link not Found
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
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 02-141
Type:sp01
Supply Short Name:CoMat 02-141 LOCKWIRE
Supply Name:CoMat 02-141 LOCKWIRE
Specification Groups:
Doc NumberType
AS3214-02 (0.8 mm)AMS 5689
Suppliers:
ManufacturerRemarks
LOCAL
81343
IE508
58401
Manufacturer Code:0AM53
Supply Number:CoMat 07-012
Type:sp01
Supply Short Name:CoMat 07-012 AIR DRYING ENAMEL
Supply Name:CoMat 07-012 AIR DRYING ENAMEL
Specification Groups:
Doc NumberType
USE COMAT 07-038
Suppliers:
ManufacturerRemarks
0AM53
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