TASK 71-52-45-700-301 Exhaust Gas Temperature (EGT) Harness - Test The Harness, Testing-001

DMC:V2500-A0-71-52-4500-00A-340A-C|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

All

Common Information

TASK 71-52-45-700-301 Exhaust Gas Temperature (EGT) Harness - Test The Harness, Testing-001

Effectivity

FIG/ITEM

PART NO.

01-005

2A1490

01-005

6A4720

01-005

6A5878

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.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
MeggerLOCALMegger

500 volts DC or equivalent

Lamp and battery teterLOCALLamp and battery tester

4.5 volts

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 71-52-45-750-054 Do the Test for Continuity of the Exhaust Gas Temperature (EGT) Harness

      NOTE

      Various methods can be used for continuity testing but in all cases the maximum voltage allowed is 24 volts DC.

    1. Refer to Table.

      2. Connect the Lamp and battery teter - 4.5 volts DC to each end of the cable circuit

      1. Accept cable circuits where the test lamp comes on

      2. Reject all circuits where the test lamp does not come on.

      3. Lightly bend or pull the cable.

      4. Reject the cable if the lamp goes out.

    2. SUBTASK 71-52-45-750-055 Do the Test for Insulation Resistance Values of the Exhaust Gas Temperature (EGT) Harness

    1. Refer to Table.

      2. Connect the Megger - 250 volts DC between each connector body and all the contacts within the connector. This check must be carried out for all connectors.

      1. Accept resistances more than 20 megohms.

      2. Reject resistances less than in Step.

      3. Lightly pull or bend the cable. Make sure the resistances do not become less than 20 megohms.

      3. Connect the Megger - 250 volts DC or equivalent between each contact and all the other contacts within the connectors.

      1. Accept resistances more than 20 megohms.

      2. Reject resistances less than in Step.

      3. Lightly pull or bend the cable. Make sure the resistances do not become less than 20 megohms.

    3. Table 2. Connector and Contact Numbers

    Connector

    Contact to

    Connector

    Contact

    4007VC

    5

    4012KS-S

    B (Al, green)

    4007VC

    6

    4012KS-S

    B (Cr, white)

    4007VC

    3

    4012KS-S

    A (Al, green)

    4007VC

    2

    4012KS-S

    A (Cr, white)

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Lamp and battery tester
Tool Name:Lamp and battery teter
Manufacturer Code:LOCAL
Tool Number:Megger
Tool Name:Megger