Inspection and Cleaning the Trailer Cable

57X mm 54.01.001
  1. Inspect the cables for cuts, abrasion, or other damage. If internal wiring is exposed, replace the cables.
  2. Disconnect the trailer electrical cables from the sockets at the cab.
  3. Inspect the cables and sockets for evidence of corrosion, and clean as necessary. If a socket is too badly corroded to clean, replace it. If corrosion has gotten into the wires and connectors inside the socket, replace the cable.

    4. Important: If using a spray cleaner to remove corrosion, be careful to protect any surrounding painted surfaces. Follow appropriate safety measures.

  4. Coat the inside of the sockets lightly with a lithium-based dielectric grease such as Lubriplate FLP DS–ES.
  5. Connect the cables.
Note:
Parent topic: Electrical, Instruments, and Controls
Document Number: 0000116808
Manual Publication Date: 2024-05-13
Topic Publication Date: 2025-04-05