DOC AIRBUS | AMM A320FWIRE HARNESS LACING PROCEDURE - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
This procedure is for lacing harnesses after the replacement of an individual wire, several wires, or to replace damaged lacing.
** ON A/C NOT FOR ALL This procedure is for lacing harnesses after the replacement of an individual wire, several wires, or to replace damaged lacing.
2. Standard Equipment
** ON A/C NOT FOR ALL | -------------------------------------------------------------------- |
| ! REFERENCE ! DESIGNATION ! SUPPLIER ! |
| !------------------------------------------------------------------! |
| ! No specific ! Scissors ! Commercial ! |
| ! No specific ! Utility knife ! Commercial ! |
| -------------------------------------------------------------------- |
3. Consumable Material
** ON A/C NOT FOR ALL | ---------------------------------------------------------------------------- |
| ! PART NUMBER ! DESIGNATION ! SUPPLIER ! |
| !--------------------------------------------------------------------------! |
| ! NSA8420-7 ! Tape, tying MIL-T-43435 Type 4 ! V00768 ! |
| ! 23 x TZ ! Tape, tying MIL-T-43435 Type 4 ! V82110 ! |
| ! MS9226-04 ! Wire, stainless steel, ! Commercial ! |
| ---------------------------------------------------------------------------- |
4. Standard Practices for Wire Harness Lacing
A. Procedure
Lacing Procedures(2) Tie a clove hitch and tighten it firmly.
(a) Pull the free ends of the lacing in opposite directions while turning them 90 to 180 degrees around the hitch so that they twist beneath it and are held.
(b) Double tie the tape when wire groups or bundles exceed 1.0 to 1.5 inches (25.4 to 38.10 mm) in diameter.
NOTE: Do not damage wire or cable insulation by tying the clove hitch too tight.
(3) Tie a square knot tightly over the clove hitch and cut off the free ends of the tying tape to a length of 0.25 to 0.50 inch (0.64 to 12.70 mm).
(4) If the clove hitch is too loose and moves, proceed as follows:
(a) Put a loop of tying tape through the wire bundle and tie another clove hitch on the opposite side of the bundle from the first clove hitch.
(b) Tie a square knot over the clove hitch.
(5) Space the ties a maximum of 2 inches (50.8 mm) apart.
(6) Tie the wires as necessary to provide good support for branches, and bundle ends.