Removing old connector - Slide the removal tool around the wire and push gently into the connector until it stops. Then pull the wire straight away from the connector and the wire, pin and tool should slide out of the connector. Attaching the new pins to the wires - Strip the wire insulation back just far enough for clean wire to slide into the back of the pin and reach the bottom. Crimp or solder the pin to the wire. Check proper installation by gently pulling on the wire.
The pin should be locked into place and should not slide out. CT Design Tech - Bringing Back America's Quality.