Ring Terminals
General Wiring and Installation Guidelines
3-10
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
80-J4866-2 Rev. G
Ring Terminals
When making electrical connections, crimp ring terminals onto the ends of the wires to ensure
good contacts. A properly crimped ring terminal has these characteristics:
• The barrel crimping indent is well-formed and properly positioned.
• The insulated wire’s grip impression is well-formed and provides proper support without
crushing the insulation.
• The wire does not move independently of the lug. Firmly tug on the ring terminal to ensure
it does not pull loose.
• The end of the bare wire protrudes through the crimp barrel approximately 0.03 to 0.125"
depending on the lug size and crimp tool.
Install the ring terminal on the ground connection using one of the following options:
Proper Grounding
When establishing a good chassis ground, avoid areas that may be potentially isolated from
ground by a hinge or bad welds. It is extremely important that you create clean, secure, tight,
metal-to-metal grounds. If grounding terminals are not available, remove the paint from the
surface of the metal connected to the chassis to make the ground. Make sure the wires are
not strained or vulnerable to damage.
WARNING
Not following proper grounding guidelines may cause intermittent connections and
may result in unexpected truck downtime or system failure.
Wire gripping impression
is well formed
Bare wire
protrudes 0.03 to
0.125 inch
OM/E-0093-97
Flat Washer
Flat Washer
Flat Washer
Star Washer
Lock Washer
Nut
Terminal Connector
Terminal Connector
Terminal
Screw
03AAA 285
