- 4,640
- 28
- 38
- Location
- Cambridge, Ohio
Hi again folks,
Yesterday afternoon, curiosity got the better of me and I decided to look into the control box assembly (the one on the side beside the fuel tank) on my second generator. Much to my dismay
, Inside I discovered a few problems, I was hoping I could get some help and advice on it. I was really hoping to just replace the blower wheel and rotor and fire it up, but it's not going to be that easy. 
General wiring issues include loose connections on the rotary switch for single phase and three phase selection, TB 8 was removed and laying inside the box as well as the bridge rectifier board.
The general wiring issues aren't that much concern to me, but on the bridge board the resistor is totally fried. I mean, it got so hot that it warped the fiberglass board and darkened the back of the board. The heat and/or fire associated with this problem also charred the closest lug on the three phase breaker in the box as well.
My question is this. If it was a loose connection on the breaker that moved over and touched the bridge board resistor that may well be the only problem. But I'm concerned that something in the generator caused the resistor to burn up and in turn charred the breaker lug. Has anybody had any experience with such a situation? is there any way the field and field diodes of the generator head could have gone bad and caused this problem. I guess I'm looking for any ideas of what could cause such a problem.
Repairing the board and testing it is easy enough. The breaker will need replaced, but luckily I just won a parts machine and the pictures show a breaker still installed and hopefully it will have a good bridge board as well.
After I replace the parts though and get ready to fire it up, I just want to be sure I've checked every thing out that I can to make sure the problem doesn't occur again. Any suggestions would be greatly appreciated.
Yesterday afternoon, curiosity got the better of me and I decided to look into the control box assembly (the one on the side beside the fuel tank) on my second generator. Much to my dismay
, Inside I discovered a few problems, I was hoping I could get some help and advice on it. I was really hoping to just replace the blower wheel and rotor and fire it up, but it's not going to be that easy. General wiring issues include loose connections on the rotary switch for single phase and three phase selection, TB 8 was removed and laying inside the box as well as the bridge rectifier board.
The general wiring issues aren't that much concern to me, but on the bridge board the resistor is totally fried. I mean, it got so hot that it warped the fiberglass board and darkened the back of the board. The heat and/or fire associated with this problem also charred the closest lug on the three phase breaker in the box as well.
My question is this. If it was a loose connection on the breaker that moved over and touched the bridge board resistor that may well be the only problem. But I'm concerned that something in the generator caused the resistor to burn up and in turn charred the breaker lug. Has anybody had any experience with such a situation? is there any way the field and field diodes of the generator head could have gone bad and caused this problem. I guess I'm looking for any ideas of what could cause such a problem.
Repairing the board and testing it is easy enough. The breaker will need replaced, but luckily I just won a parts machine and the pictures show a breaker still installed and hopefully it will have a good bridge board as well.
After I replace the parts though and get ready to fire it up, I just want to be sure I've checked every thing out that I can to make sure the problem doesn't occur again. Any suggestions would be greatly appreciated.
