GENERAL MAINTENANCE INFORMATION. (cont)
Electrical System Components and Wiring. The electrical system can be damaged by broken, bent, pushed-
in or dirty pins and contacts or connectors and receptacles mated with the wrong equipment or harnesses. Harnesses
improperly routed can also cause damage to the electrical system. The following practices must be followed any time you
work on electrical systems.
Tagging electrical wires.
(a) Look at part or wire to see if it has numbers, letters or an identification band. Each cable or each
harness should have an identification band. If the identification band is missing or unreadable, tag each cable end
termination before taking out the harness.
(b) Write numbers or letters on tags with pencil. Fasten tag on wire, terminal or part by twisting wire
ends. Remove tag after part or wire is installed. If you cannot tag a wire because it must fit through a small hole or
because you cannot reach it, write down the wire location and terminating point on paper.
(c) After installing a harness, take off any tags that were put on harness cables.
Cleaning electrical components.
Solvent can irritate skin and can give off harmful vapors. To avoid injury, keep
solvent away from heat, wear protective clothing and use in a well-ventilated area.
Do not use a wire brush or any metal tool to remove corrosion from a connector
shell, receptacle or pin. This could scratch the surface plating and let corrosion
begin in the metal below.
(a) Clean off oil, grease and any dirt from cable harnesses and parts other than connectors with solvent
and non-metallic brush or lint-free cloth. Be sure to cover clean parts with dust caps, plugs or lint-
(b) Wipe up wet or damp places. Take steps to keep water away from electrical components.
(c) Dry the connector and receptacle to be cleaned either in open air or with air heat gun.