Re: Continuing on the Overdrive

Posted by HH56 On 2009/8/25 13:23:44

In order to test and prevent the machine gunning, you have to energize terminals 3 and 4 at the same time. The power at 4 will allow the pull in and when pull in contacts open, the power at 3 will be there for hold coil to keep it in. This is essentially the way it is wired in normal operation by circuitry in the relay. Easiest way to do this is get a short piece of wire long enough to connect both terminals together and then to your power source. Needs to be reasonably heavy --14 ga at least. After it is energized properly and stays out, then look at your contacts and see if they are still as you mentioned.