Preliminary Requirements

Procedure

1. SUBTASK 71-51-41-350-069 Prepare the Harness Adjacent to the Electrical Connector/Receptacle

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

      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.

      3. Make a mark on the cable to show the position of the clamp with CoMat 06-069 MARKER.

2. SUBTASK 71-51-41-350-070 Disassemble the Backshell Assembly from the Electrical Connector/Receptacle

   1. Refer to Figure.

   2. Remove the backshell nut

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

      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. Discard the knitmesh.

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

3. SUBTASK 71-51-41-350-071 Remove the Unserviceable Cable

   1. Identify the unserviceable cable

      1. Test the cable. Refer to Testing-001 TASK 71-51-41-700-301.

   2. Mark the cut back position on the unserviceable cable.

      1. Make the mark 3.5 in. (90 mm) from the cable clamp position with CoMat 06-069 MARKER.

   3. Cut back the cable

      1. Cut the cable at the marked position.

   4. Install a heat shrink sleeve over each cut end to prevent the frettage of adjacent wires. Tie these cut ends to the loom with lacing tape.

4. SUBTASK 71-51-41-350-072 Remove the Receptacle

   1. Refer to Figure.

   2. Remove the contact (previously attached to the unserviceable cable)

      1. Use the Contact extraction/insertion tool, remove the contact from the hole in the electrical connector/receptacle

5. SUBTASK 71-51-41-350-073 Prepare the New Cable for Assembly

   1. Make sure the cable is of the correct type to replace the unserviceable cable.

6. SUBTASK 71-51-41-350-074 Install the New Contact to the New Cable

   1. Remove the conductor insulation

      1. Use the Thermo stripper and remove 3 in. (76.2 mm) of the conductor insulation from the cable end. Refer to Figure.

      2. Install the new contact

         1. Put the new contact into the Contact crimping tool.

         2. Put the core lead into the contact and crimp it.

      3. Examine the core lead

         1. Do a visual examination of the core lead.

         2. Make sure the contact is correctly attached and crimped.

7. SUBTASK 71-51-41-350-075 Assemble the Sheath to the Cable

   1. Refer to Figure.

   2. Cut the cable jacket

      1. Cut the end of the jacket to get the same length of the termination (as before the cut back of the unserviceable cable).

   3. Unknit the screen braid

      1. Unknit the screen braid to get the same unknitted length (as before the cut back of the unserviceable cable).

   4. Temporarily attach the new cable to the loom

      1. Use CoMat 02-148 ADHESIVE TAPE (ELECTRICAL).

   5. Wrap the new knitmesh braid

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

   6. Install the 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.

8. SUBTASK 71-51-41-350-076 Install the Contact into the Electrical Connector/Receptacle

   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/receptacle surface.

9. SUBTASK 71-51-41-350-077 Install the Backshell to the Electrical Connector/Receptacle

   1. Refer to Figure.

   2. Install the backshell

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

      2. Attach the backshell to the electrical connector/receptacle 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.

10. SUBTASK 71-51-41-350-078 Finish the Harness Adjacent to the Electrical Connector/Receptacle and Install the Cable Ties

    1. Install the cable ties, black rubber sleeve and clamp bar adjacent to the electrical connector/receptacle. Attach the new cable to the outside of the harness.

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

       2. Refer to VRS1033 (Repair-003) TASK 71-51-41-300-003.

       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.

11. SUBTASK 71-51-41-750-056 Test the Fan EEC Harness Assembly

    1. Test the harness

       1. Refer to Testing-001 TASK 71-51-41-700-301.

12. SUBTASK 71-51-41-550-053 Do the Harness Preservation Procedure

    1. Put the harness assembly in storage.

       1. Refer to Storage-001 TASK 71-51-41-550-301.

Figure: Repair the Fan EEC Harness

Repair the Fan EEC Harness