I'm an idiot!!! - Fermont MEP-802A 5kW

[4x4nutz]

I let someone install new batteries and they put them on backwards. Gen will not start. PLEASE tell me there's a fuse somewhere! We are at the scene of a tornado here in Texas (Laguna Heights) trying to lend a hand.

 

[Guyfang]

Have you taken them out and put them in right?

 

[4x4nutz]

Have you taken them out and put them in right?

Yes, they are in correctly now. Still no power. He said it sparked a lot when he tried to connect the last terminal. I came in corrected the cables and there is nothing.

 

[Guyfang]

First tell me you have pushed in the CB1 circuit breaker in the control panel.

Then check the S17, emergency switch on the control panel.

Then check the S10 Dead crank switch on the left side of the set, to see if its in the right position. If you push it to crank, will the engine crank over?

After checking all that, try and start it.

 

[4x4nutz]

First tell me you have pushed in the CB1 circuit breaker in the control panel.

Then check the S17, emergency switch on the control panel.

Then check the S10 Dead crank switch on the left side of the set, to see if its in the right position. If you push it to crank, will the engine crank over?

After checking all that, try and start it.

Pushed Cb1. S17 and S10 ....have no ides what the "right" position is. Looking for S17. My first time even looking at a Mil gen.

 

[Guyfang]

S17 is the big red switch on the panel. Pull it out.

Put the S10 in the normal position. It has CRANK, OFF and normal. First try the CRANK position, it should turn the engine over. Then put it in the normal position.

 

[4x4nutz]

S17 is the big red switch on the panel. Pull it out.

S17 is the big red switch on the panel. Pull it out.

Put the S10 in the normal position. It has CRANK, OFF and normal. First try the CRANK position, it should turn the engine over. Then put it in the normal position.

I had checked all that already, just did not know the numbers. Np panel lights or power anywhere. Is there a breaker anywhere between the start switch and batteries? Also, if there isn't did I burn something up and should I just return home or attempt to fix it here?

 

[Guyfang]

Do you have a multimeter?

 

[4x4nutz]

Do you have a multimeter?

No...just basic tools. It ran perfectly...but I stopped for new 51R batteries and let one of my employees I brought hook up the new ones. He said it sparked, he pulled the connection off and came and got me. I switched the cables correctly and there is nothing.

 

[kloppk]

If you have a multimeter check to see if you have about 24 volts DC at the slave connector. Center is Positive, outer is Negative.
This is to verify you have the batteries cabled up correctly. Or a test light will do too.

 

[Guyfang]

Its 00:03 here, so I may need to bail out soon. If you can keep an eye out Kurt, it would be nice.

 

[Guyfang]

I would go to MT4, the battery charging ammeter next to look for power. Thats in the control panel.

 

[Guyfang]

you need a meter.

 

[4x4nutz]

The fact there there is not even power to the panel light tells me there is something somewhere that's tripped or burned out. We are headed home. Thanks for you help Guyfang.

 

[rickf]

Check your ground connections at the frame and make sure they are clean and tight. They may have arced from the short and that will cause a bad connection. You say you have never looked a a military generator before, are you familiar with the series connection of the batteries to get 24 volts?

 

[Guyfang]

Are you going back to fix it? Or taking it with you?

 

[4x4nutz]

Are you going back to fix it? Or taking it with you?

I'm gunna pull over and check these new suggestions. Don't have a meter. Looking for the MT4....

 

[4x4nutz]

I'm gunna pull over and check these new suggestions. Don't have a meter. Looking for the MT4....

No luck...no

Are you going back to fix it? Or taking it with you?
We are taking it with us. We have a mechanic who does all this on our humvees, but he won't return until Tuesday.

 

[4x4nutz]

Check your ground connections at the frame and make sure they are clean and tight. They may have arced from the short and that will cause a bad connection. You say you have never looked a a military generator before, are you familiar with the series connection of the batteries to get 24 volts?

Yes, familiar.

 

[4x4nutz]

Anyone have an idea where this MT

Check your ground connections at the frame and make sure they are clean and tight. They may have arced from the short and that will cause a bad connection. You say you have never looked a a military generator before, are you familiar with the series connection of the batteries to get 24 volts?

Ground is good.