hepperj27
New member
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- Location
- South Dakota
Hey everyone new here and this is my first post. So as the title says I acquired an MEP-805A. I got the engine running and it runs well and seems to be at operating speed. I started the engine and let it run and warm up for awhile and noticed both the volt and frequency meters were reading zero. So I held S1 in the start position for a few seconds and notice smoke coming from the output box. I immediately let off and shut the machine down. Looking at the output box I found both wires going to terminal 1 and 2 on the T1 were melted. Checked to see that the wires were hooked to the proper terminals and they seemed to be. So I replaced the wires and continued to try and troubleshoot per the TM but it was difficult because I can't hold S1 in the start position for longer than 1-2 seconds or it burns up the wires. Finally after about a day of trying to troubleshoot I decided to just unhook one of the wires to the T1. When I did that now when I hold up S1 in start it will bring voltage up to about 98VAC on each leg to neutral and around 168VAC across each leg. Moving the voltage adjustment POT does nothing. And frequency was around 60hz but was difficult to adjust. And when I let S1 go back to Run frequency drops to zero and voltage to about 15VAC at the convenience receptical. I am leaning towards the T1 being faulty but would like someone who knows more about them to give their opinion before I throw parts at it.
