Soldering Techniques
The most important step in this repair procedure is the proper soldering of each connection.1. Use a soldering gun or a high output pencil type soldering iron so the joint can be heated quickly, without transferring too much heat into the wires. The solder should be thin, rosin core lead.
2. Place a block of wood under the splice to be soldered to give a base to push against and prevent the soldering gun or solder from touching other wires.
3. Heat the crimp connector, not the wires or solder.
4. Feed the solder into the end of the connector. The connector will draw the solder into it towards the heat. If the solder beads up, the connector may not be hot enough or there may not be space in the connector to draw the solder into it.
5. Feed solder into the connector until the connector appears filled.
6. Continue heating the connector for a couple of seconds after removing the solder to allow good penetration. Check that there are no sharp points of solder that may rub and cut into other wires.