Your last generator Maintenance Run

[nikdfish]

One last update on the Champion 7K dual fuel. After 5 more hours runtime (fast moving thunderstorms knocked out our power again...) I dumped the oil for a second change - no sparkles - no particulates, oil looks pretty much the same as when filled (maybe darker?).

Also, I cranked up the old Phillips scope & took a look at the waveform unloaded vs loaded (used a step down transformer between line voltage & scope)

First - mains power waveform:



Champion waveform, unloaded:



Champion waveform, 12A load on each leg:



Looks pretty good to me...

Hopefully subsequent posts will stay better on target

Nick

 

[3930dave]

Looking good on those waveforms Nick.

In the right hands, a 'scope is a useful diagnostic tool, so I find that right at home in a Maintenance thread..... besides, even when I'm OP, I usually don't mind some drift.....

Sounds like you are all set for another 15+ years :thumbsup:

Edit: (Scope newbies - take note of Nick's comment about using a transformer).

Rgds, D.

 

[bullbreaker]

Cranked up my JD Subaru powered AC-G8010S-E genny . It has electric start but battery dead on it . Haven't replaced it , cause one ,two yanks on recoil cord and thing always fires rite up . Ran it for about an hour , ran a small amount of Sea Foam through it . Then closed fuel petcock and ran dry and drained fuel . I have less than 5 hours on this unit. https://www.deere.com/en_US/product...rcial/large_frame_8000/large_frame_8000.page?

The 404 cc Subaru motor appears to be a winner (so far). Like I have said before only negatives I see/hear are unit is kinda noisy IMO compaired to like a Honda motor and no oil filter on 404 cc Subaru.

Bought it cause I got a good deal on it , it came with wheel kit and handles . I have yet to run into someone that has one of these , but I know these units are out there . I really like it so far .

If anybody has had any hands on experience with the 404 CC Subaru , sure would like to hear your opinion/ETC on them .

 

[3930dave]

With the parent company being Fuji, there's a lot of mechanical engineering depth there.

What surprised me a bit is the engine division is privately held, according to Wikipedia:

https://en.wikipedia.org/wiki/Subaru_Industrial_Power_Products

That article has me wondering about a connection to Wisconsin (company that is).

Sorry, I have no direct experience with that engine BB, but given it's lineage I anticipate good performance from it..... that, and I'd expect that JD did a thorough engineering review when selecting that engine.

Rgds, D.

 

[buickanddeere]

Wave forms will vary if the generator load is resistive or inductive.

 

[DarkBlack]

Also, I cranked up the old Phillips scope & took a look at the waveform unloaded vs loaded (used a step down transformer between line voltage & scope)


Nick

You don't have a probe that can connect to 240V?

 

[DarkBlack]

If you put a large switching supply load on it, you should see that waveform start to get ugly.

 

[bullbreaker]

With the parent company being Fuji, there's a lot of mechanical engineering depth there.
What surprised me a bit is the engine division is privately held, according to Wikipedia:
https://en.wikipedia.org/wiki/Subaru_Industrial_Power_Products
That article has me wondering about a connection to Wisconsin (company that is).
Sorry, I have no direct experience with that engine BB, but given it's lineage I anticipate good performance from it..... that, and I'd expect that JD did a thorough engineering review when selecting that engine.
Rgds, D.

Dave
Thanks for info !!!

 

[3930dave]

Dave
Thanks for info !!!

You're welcome. I'd seen a few Subaru small engines advertised on products up here, but didn't know much about them so was interested in doing a bit of reading myself.

Rgds, D.

 

[Sawyer Rob]

I think it went, Wisconsin, then Wisconsin- Robin, then Robin-Subaru and now I see them just called Subaru's...

DM