Electronics International MVP-50T - Manual (Page 44)

Some considerations for making a good crimp on a Red Slip-on Connector are listed below:
1. Do not knick the wire when stripping the insulation. This will weaken the wire and cause it
to break over time.
2. It is imperative that the wires be tripled over when placed into the connector. This will allow
for many more connection points to be made and will produce a tighter crimp.
3. Make sure you do not push the insulation portion of the wire too far into the connector. This
will cause the insulation to be in the crimp area which, over time, will cause the connection
to fail.
4. The crimp must be tested with the Pull, Push/Pull and Twist tests described below to insure
a good crimp has been made. Loose crimps are the most common source of problems.
D. Pull Test: Pull (approximately 3 to 4 pounds) on the connector with one hand while holding the wire
1/2" from the connector with the other hand. If the wire feels loose in the connector, you must re-
crimp the connection or start over using a new connector.
E. Push/Pull Test: Push and Pull with a semi-rapid motion (approximately 1 to 2 pounds) on the
connector with one hand while holding the wire 1/2" from the connector with the other hand. If the
wire has a clicking feel, the wire is loose in the connector. You must re-crimp the connection or
start over using a new connector.
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It is very easy to produce a good crimp. Unfortunately, it is just as easy to produce a bad one. Read the Read the Read the Read the Read the
instructions below. instructions below. instructions below. instructions below. instructions below. A proper crimp will produce a reliable connection for a lifetime.
6.3.1 6.3.1 6.3.1 6.3.1 6.3.1 Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: Installing a Red Slip-on Connector onto a TC or Tin Copper Wire:
Red Slip-on Connectors are used on most thermocouple (TC) and insulated wire connections used in the
engine compartment. This type of connector is easy to install and only requires an inexpensive readily
available crimp tool. There are many crimp tools available that will produce a good tight crimp on the
Red Slip-on Connectors. The non-ratcheting crimpers will require strength to produce a good connec-
tion. A red terminal crimp tool can be found at most electronic stores. To install a Red Slip-on Connec-
tor, perform the following steps:
A. When working with a thermocouple (TC) wire or cable, split the wires back 3". Be careful not to
knick the individual wires.
B. Strip each wire back 1 1/4" and triple the wires over. These wires must be tripled over (or
doubled for larger wires).
C. Place the appropriate Red Slip-on Connector onto the wire. Double crimp the connector using a 20
ga. crimp tool for insulated red connectors. A good crimp is very important. Poor crimps will
cause jumpy readings and are the biggest source of problems.