Usage:
The Deutsch connectors used on the 3406B (PEEC III) Engines should be visually inspected at the beginning of each connector test. Use the following steps to help determine if the connector is the cause of the problem. If a problem is found in the electrical connector, repair the connector and continue the test procedure.
If the pins or sockets on the truck supplied wiring are excessively corroded or damaged and need replacement, contact the truck manufacturer for their repair recommendations.
The Caterpillar 4C3406 Connector Repair Kit, or the 1U5803 Connector Repair Kit with a 4C3501 Update Kit, can be used to install new pins or sockets on the existing wires or replace a Deutsch connector assembly (plug and/or receptacle).
1. Check connector lock ring.
Make sure the connector was locked correctly and the lock ring is capable of locking the connector together.
2. Perform 10 pound pull test on each pin/wire.
Each pin and connector should easily withstand 10 pounds of pull and remain in the connector body. This test checks whether the wire was correctly crimped in the pin and whether the pin was correctly inserted into the connector. Repair as needed.
NOTE: Pins should ALWAYS be crimped onto the wires; NEVER soldered.
3. Visually inspect wiring.
Look for worn or abraded wires. Check for pinched or damaged harnesses.
4. Visually inspected connectors.
Verify that pins and sockets are not corroded or damaged. Verify correct alignment and location of pins in the connector.
5. Check individual pin, socket and connections.
This is especially important for intermittent problems. Using a new pin, insert the pin into each socket one at a time to check for a good grip on the pin by the socket. Repeat for each pin on the mating side of the connector, using a new socket for the test.