TASK 71-51-44-300-007 Ignition Supply Harness - Replace The Backshell, Repair-007 (VRS1047)

DMC:V2500-A0-71-51-4400-05A-920A-C|Issue No:002.00|Issue Date:2018-05-01

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 71-51-44-300-007 Ignition Supply Harness - Replace The Backshell, Repair-007 (VRS1047)

Effectivity

FIG/ITEM

PART NO.

01-005

5A9305

01-005

6A5668

General

To identify the consumable materials refer to the PCI.

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

Repair Parts

FIG/ITEM

PART NO.

PART IDENT

QTY

03-915

5A9215

Lacing tape (White)

A/R

03-916

5A9216

Lacing tape (Black)

A/R

03-030

5A9220

Backshell assembly

A/R

03-050

5A9222

Backshell assembly

A/R

03-070

5A9222

Backshell assembly

A/R

03-090

5A9220

Backshell assembly

A/R

03-110

5A9229

Backshell assembly

A/R

04-889

5A9189

Knitmesh

A/R

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Contact extraction/insertion toolLOCALContact extraction/insertion tool
IAE 3J12704 Wrench and holderLOCALIAE 3J12704

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-146 LOCKWIRELOCALCoMat 02-146
CoMat 02-148 ADHESIVE TAPE (ELECTRICAL)LOCALCoMat 02-148

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 71-51-44-350-078 Prepare the Harness Adjacent to the Electrical Connector

      1. Remove the clamp bar, black rubber sleeve and cable tie(s) adjacent to the electrical connector.

      1. Remove the safety wire, two screws and clamp bar.

      2. Carefully push the black rubber sleeve rearwards and remove only the cable tie(s) necessary to do this Repair.

    2. SUBTASK 71-51-44-350-079 Disassemble the Backshell Assembly from the Electrical Connector

    1. Refer to Figure.

      2. Remove the backshell nut.

      1. Install the electrical connector assembly to the IAE 3J12704 Wrench and holder 1 off.

      2. Disconnect the backshell nut and move it rearwards along the cables.

      3. Remove the backshell.

      1. Remove the upper ring, sleeve and split ring.

      2. Disconnect the backshell with the IAE 3J12704 Wrench and holder and move the backshell along the cables.

      3. Discard the knitmesh.

      4. Remove the electrical connector from the IAE 3J12704 Wrench and holder.

    3. SUBTASK 71-51-44-350-080 Remove the Contact from the Electrical Connector

    1. Refer to Figure.

      2. Remove the contacts.

      1. Use the Contact extraction/insertion tool, remove the contacts from the holes in the electrical connector.

    4. SUBTASK 71-51-44-350-081 Replace the Backshell

    1. Remove the damaged backshell from the loom.

    2. Confirm the identification number of the new backshell and associated parts as correct for this build.

      3. Wrap the new knitmesh braid.

      1. Wrap the knitmesh braid on each cable screen braid and put the split tube over it.

      4. Install the new backshell on the cable loom.

      1. Turn and fold the unknit screen braid tails and temporarily tape the ends to the cables.

      2. Make sure the backshell, upper ring, washer and nut are installed on the cable loom.

    5. SUBTASK 71-51-44-350-082 Install the Contact into the Electrical Connector

      1. Install the contact.

      1. Bend the core lead slightly to slide it into the insertion tool slot.

      2. Move the core lead and the tool in opposite directions, so that the core lead slides into the tabular area of the tool. Pull the core lead rearwards through the tool until the tip of the tool seats against the contact shoulder.

      3. Slowly press the contact and the tool into the insert hole by hand so they are vertical with the electrical connector surface.

    6. SUBTASK 71-51-44-350-083 Install the Backshell to the Electrical Connector

    1. Refer to Figure.

      2. Install the backshell.

      1. Install the electrical connector assembly to the IAE 3J12704 Wrench and holder 1 off.

      2. Attach the backshell to the electrical connector and tighten the nut by hand.

      3. Tighten the backshell nut through 90 degrees with the IAE 3J12704 Wrench and holder.

      3. Install the other backshell parts.

      1. Remove the temporary tape and put the screen tails equally around the split ring cone surface and through the ID of the upper ring and washer.

      2. Attach and tighten the backshell nut to the backshell so the different parts hold the screen braid tails.

      3. Trim the tails and shrink the sleeve over them.

    7. SUBTASK 71-51-44-350-084 Finish the Harness Adjacent to the Electrical Connector

      1. Install the cable ties, black rubber sleeve and clamp bar adjacent to the electrical connector.

      1. Use the applicable color lacing tape and lace the ties. The lacing positions are the same as the previous positions.

      2. Refer to VRS1043 (Repair-003) TASK 71-51-44-300-003.

      3. Push the black rubber sleeve forward so it packs the cables at the clamp bars.

      4. Attach the clamp bars together with the two screws, tighten the screws.

      2. Safety the parts.

      1. Safety the backshell, nuts and screws with CoMat 02-146 LOCKWIRE.

    8. SUBTASK 71-51-44-750-057 Test the Fan EEC Harness Assembly

      1. Test the harness

      1. Refer to Testing-001 TASK 71-51-44-750-301.

    9. SUBTASK 71-51-44-550-054 Do the Harness Preservation Procedure

      1. Put the harness assembly in storage.

      1. Refer to Storage-001 TASK 71-51-44-550-301.

    10. Figure: Repair the Ignition Supply Harness

    Repair the Ignition Supply Harness

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the effectivity table to add part number 6A5668. (17VC589)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-146
Type:sp01
Supply Short Name:CoMat 02-146 LOCKWIRE
Supply Name:CoMat 02-146 LOCKWIRE
Specification Groups:
Doc NumberType
AIA/NAS NASM20995 Part Number MS20995C20 (0,5 MM)
Suppliers:
ManufacturerRemarks
LOCAL
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
Tool Number:Contact extraction/insertion tool
Tool Name:Contact extraction/insertion tool
Manufacturer Code:LOCAL
Tool Number:IAE 3J12704
Tool Name:IAE 3J12704 Wrench and holder