freightliner BUSINESS CLASS M2 100, Maintenance Manual

Page: 179 / 198

Trailer Cable Inspection
and Cleaning
1. Disconnect the trailer electrical cables from the
sockets at the cab.
2. Inspect the cables and sockets for evidence of
corrosion, and clean as necessary. If a socket is
too badly corroded to clean, replace it. Freight-
liner recommends also replacing the socket’s
harness as well, if the corrosion has gotten into
the wires and connectors inside the socket.
IMPORTANT: If using a spray cleaner to remove
corrosion, be careful to protect any surrounding
painted surfaces.
3. Coat the inside of the sockets with a lithium-
based dielectric grease such as Lubriplate FLP
DS–ES.
4. Connect the cables.
Electrical, Instruments, and Controls
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Business Class M2 Maintenance Manual,
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