Mep-003 won't continue to produce power

[Angelo190471]

I purchased a 003 couple days ago. He had it rigged up to some commercial heaters and acs to load test it, and it seemed to be making power fine. I go to try it here and it would produce power for 10 seconds then the volt and hertz gauge will drop down just about all the way. Every time I try and restart it, it will do the same thing. The generator part just won't stay running.
He bought and maintained this with no intention of selling, but unexpected move forced him to sell. He did a handful of upgrades, like the spin on filters and I believe it was the voltage regulator.
What should I check?

 

[Scoobyshep]

To clarify, the engine stays running correct?

Sent from my SM-G973U using Tapatalk

 

[Angelo190471]

Yes. Engine starts and runs perfect. The stuff we load tested with got rained on, maybe it shorted something out?

 

[Scoobyshep]

Its dropping out and not tripping the breaker? have you tried reducing the load?

 

[Angelo190471]

It will do it with no load, And with a small window unit plugged into it.

 

[Scoobyshep]

Sounds like the regulator is dropping out. Need to find out if its the OEM or aftermarket

 

[Angelo190471]

 

[Scoobyshep]

yea this looks modified. if I had to guess either the regulator is damaged or insufficiently sized and is not able to maintain the field.

 

[Angelo190471]

It's the Lakeland board. I don't see a phone number so I'll email him

 

[Light in the Dark]

@Triple Jim makes those boards. He might be able to help you figure this out... his product reputation is excellent.

 

[Scoobyshep]

btw the repair in the control cube warrants a smack with a blunt object. atleast wrap it in tape. *internal electrician is screaming*

 

[Angelo190471]

I believe I still have the oem board. Pretty sure he said the oem board was good. He just wanted to upgrade and have a spare

 

[Scoobyshep]

I believe I still have the oem board. Pretty sure he said the oem board was good. He just wanted to upgrade and have a spare

OEM looks like this

 

[Guyfang]

Keep in mind, that the VR is a "Universal" VR. It can be used in a 60 hertz machine, and a 400 hertz machine. So do look at the TM's to see what wires go where.

 

[Angelo190471]

I thought he gave me a spare original vr but I guess not. Just sent him a email

 

[Angelo190471]

it will make 260 volts on its gauge, aslong as i hold the start switch. pretty much as soon as i release it, it drops down almost to nothing. wouldnt that be more so a problem with flashing the generator then it would be with the vr?

 

[Scoobyshep]

it will make 260 volts on its gauge, aslong as i hold the start switch. pretty much as soon as i release it, it drops down almost to nothing. wouldnt that be more so a problem with flashing the generator then it would be with the vr?

No when its in start the regulator is being bypassed for the flash. The avr takes over when not in start

 

[Chainbreaker]

I have one Triple Jim's Lakeland AVR boards installed in one of my gensets. It is excellent and an "upgrade" (better components, heatsinking, etc.) over the OEM board. You should PM Triple Jim member here and ask him to respond to this thread as how to test his board to verify functionality.

 

[Chainbreaker]

Here is his website on the AVR board: Lakeland MEP-002A/003A AC Voltage Regulator (lakeserv.net)

@Triple Jim

 

[Guyfang]

View attachment 867996View attachment 867997View attachment 867998

In the first picture, what is the wire number on the wire that is shade tree extended?