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Sometimes the manual doesn't have all the answers

Summerpaws

Summerpaws

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Guyfang said:
Look in the control panel. The plugs are on the Bottom of the control panel.

First take the wire off K8-3, and measure from there to the Burden Resister. If you get nothing, then unscrew P6. Look at the schematics to see what pins to check in P6/J6.

P6/J6 can also be loose, or have a bent/burnt pin. Open the lower door s lay on your back with a light and inspect.
Click to expand...
Ok. I found the smoking gun. I removed both wires from terminal 3, K8. Wire 166B goes to J6-3. Wire 166C goes to R12-1. I unplugged P6/J6. R12 is open circuit. R13 is 7.9 ohms. Double and triple checked readings. Seems I need a burden resister. Thoughts?

IMG_1880.jpegIMG_1881.jpeg
 
Summerpaws

Summerpaws

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BeStihl said:
Maybe check the solder joints on the R12, might get lucky. Chase the resistance from 166 to R-12 & from there to P6/J6, maybe a wire is broken. JMO
Click to expand...
Great minds think alike. I checked the continuity of the wires from the resisters to K8 and , I think it was pin 3 of P6. All good there.
 
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grywitt

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I learned that a couple volts difference between phases can mean a lot on these gens. I had about 4 volts difference and didn't think much about it but once I got my contacts polished in k1 I had .2 volts difference at most. I got lucky and the problem became more pronounced and forced me to look into it more so that's how I found that I wasn't getting good contact on one of my phases.

I had looked in that k1 the day prior and thought things looked okay. I guess what I bring from this is little things can mean a lot on that circuit. I guess when you are dealing with single digit ohms a couple more makes a difference..

I've ran full load and beyond for several hours now. I'll be interested to hear what caused your problem.
 
Summerpaws

Summerpaws

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grywitt said:
I learned that a couple volts difference between phases can mean a lot on these gens. I had about 4 volts difference and didn't think much about it but once I got my contacts polished in k1 I had .2 volts difference at most. I got lucky and the problem became more pronounced and forced me to look into it more so that's how I found that I wasn't getting good contact on one of my phases.

I had looked in that k1 the day prior and thought things looked okay. I guess what I bring from this is little things can mean a lot on that circuit. I guess when you are dealing with single digit ohms a couple more makes a difference..

I've ran full load and beyond for several hours now. I'll be interested to hear what caused your problem.
Click to expand...
I checked the voltage on both sides of K1 and they were spot on. (at 4K). Good info to know for sure! My problem ended up being an open circuit on R12. Makes sense now. I am trying to find one of the illusive buggers!
 
Summerpaws

Summerpaws

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grywitt said:
Oh heck. These posts weren't showing up before i wrote this. Oops. Glad you found the problem.
In a pinch you could make something like this work
Click to expand...
Yup. If I have to. It just means that I will have to fab something up and do some soldering and shrink connecting. I'll give it a couple of days and see if anything turns up,
 
Summerpaws

Summerpaws

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kloppk said:
I've searched and didn't find that resistor as well and a direct substitute that was previously available. An option would be to use a RE70G7R50C02 chassis mount resistor.
Click to expand...
Thanks. I bookmarked the page just in case. I'm working with someone on Marketplace that may have one. He's a member here it turns out.
 
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