- BS168 Splice, regular insulated for 16-22 AWG wire,
- 322326 Splice, thermocouple, parallel type, nickel,
- 2-323876-2 Splice, thermocouple, butt type, alumel,
- 2-323876-3 Splice, thermocouple, butt type, chromel.
(6) Select the correct crimp tool for the wire to be spliced:
- MR8-89-1 Crimp tool, regular wire splices,
- 46447 Crimp tool, thermocouple wire splices.
(7) Prepare the wires to be spliced.
(a) Measure the splice crimp barrel for the correct wire strip length.
(b) Examine the wire stripper to make sure the blades are sharp and aligned.
(c) Strip the insulation from the wires.
(d) Cut the conductor to the correct length. NOTE : The maximum space allowed between the splice and the wire
____ insulation is 0.12 in. (3.0479 mm).
(8) At both ends of the damaged cable, crimp one splice onto each of the wires.
(a) Put the splice into the crimp tool.
(b) Put one end of the wire into the splice. The wire must be visible through the inspection hole in the splice.
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(c) Close the handles of the crimp tool with an even pressure to crimp the splice onto the wire.
(d) Examine the splice to make sure the wire is correctly attached.
(9) At both ends of the replacement cable crimp the colored wire to the wire of the same color on the damaged cable.
(a) Put the splice into the crimp tool.
(b) Put one end of the wire into the splice, the wire must be visible through the inspection hole in the splice.
(c) Close the handles of the crimp tool with an even pressure to crimp the splice onto the wire.
(d) Examine the splice to make sure the wire is correctly attached.
(10) Do a continuity test on the repaired wire. Refer to 70-71-46.
The wire must have continuity from end to end.
(11) Wind the splices with insulating tape until the tape is level with the wire insulation.
(12) Double wind the splice area with insulating tape.
(a) Wind the splice area with a layer of insulating tape.
(b) Each wind must overlap the last wrap by 50 percent.
(c) Wind another layer of insulating tape over the splice area in the opposite direction of the first wrap.
(d) The wind should extend 1 in. (25.3999 mm) beyond the end of the splice on both sides.
(13) Move the piece of repair wire shield over the splice area. Make sure the repair wire shield touches the shield of the wire.
(14) For abrasion protection and to provide a moisture proof seal, wind the repair area with two layers of insulating tape.
(a) Wind the repair wire shield area with two layers of insulating tape.
(b) Each wind must overlap the last wrap by 50 percent.
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(c) Wind another layer of insulating tape over the repair area in the opposite direction of the first wrap.
(d) The wind should extend 1 in. (25.3999 mm) beyond the end of the repair area on both sides.
(e) Tie the ends of the insulating tape with the tying tape. Use a clove hitch and a square knot.
(15) Do a continuity test on the repaired wire. Refer to 70-71-46. The shield must have continuity from end to end.
10. Metal Overbraid Repair
______________________
A. Procedure
(1) Cut a piece of the metal overbraid to cover the splice area.
(a) The overbraid should extend 1.5 in. (38.0999 mm) beyond the end of the splice area on each side.
(b) Cut the metal overbraid down the center and fold the edges under.
(c) Remove any loose wires from the metal overbraid so that they will not go into the wire shield or the wire insulation.
(2) Wind the piece of metal overbraid around the splice area:
(a) The overbraid should be wound around the harness so that the end of the wind overlaps the start.
(b) Tie the ends of the piece of overbraid with tying tape: 1 Make two ties 0.5 in. (12.6999 mm) apart.
_
2 For the ties use a clove hitch and a square knot.
_
(3) Do a continuity test on the repaired metal overbraid. Refer to 70-71-46. The overbraid must have continuity from end to end. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM STANDARD PRACTICES - ENGINES(31)
