Coast Resorts Open Roads Forum: Tech Issues: Cleaning Onan generator slip rings
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 > Cleaning Onan generator slip rings

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fourthclassC

MA

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Posted: 07/27/23 09:54am Link  |  Quote  |  Print  |  Notify Moderator

Howdy, has any one bought that slick stick to clean the slip rings on their generator? Wondering if I can perform that operation without dropping the generator. Thanks to all who reply.

dougrainer

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Posted: 07/27/23 09:57am Link  |  Quote  |  Print  |  Notify Moderator

https://www.google.com/search?q=slick+st........-wiz#kpvalbx=_y5PCZKikG8-xqtsP7tCh8AI_39

dougrainer

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Posted: 07/27/23 09:58am Link  |  Quote  |  Print  |  Notify Moderator

What makes you think the slip rings are a problem? Doug

haste maker

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Posted: 07/27/23 03:55pm Link  |  Quote  |  Print  |  Notify Moderator

I have the slick stick & I guess it has done the job? I was having trouble with the generator stopping after 30 minutes or 10 hours for no reason...I saw a U-tube film where a guy had the same trouble as me & he removed some oil from the generator & he solved his trouble...then I saw the slick stick ad, so I tried it also & after I removed the extra oil & used the slick stick...I did a test run both A/C on & it ran for 24 hours, with no problems.


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Dutch_12078

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Posted: 07/27/23 07:00pm Link  |  Quote  |  Print  |  Notify Moderator

I've used Flight Systems Slip Stick on several different generators over the years with good results. I've never needed to drop the generator to use it. I do run the voltage/resistance checks in the Onan service manuals first though, to see if cleaning is needed. Generally, I've cleaned the slip rings on generators that have sat for extended periods without running. The most recent one I worked on had sat for about 4 years and the rings were pretty black.

Here's a video on using one:

Using the Slip Stick


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fourthclassC

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Posted: 07/28/23 05:53am Link  |  Quote  |  Print  |  Notify Moderator

Appreciate all the replies. I have not actually looked at the slip rings yet. It is a 4kwatt onan. 03 Winnebago 324v. class C. I replaced the fuel pump and filter with Onan OEM about 2 years ago. Been running and starting great since then. But recently it shuts down after about 30 mins. with the AC on. Stays running with lower draw stuff like fans going.

dougrainer

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Posted: 07/28/23 08:20am Link  |  Quote  |  Print  |  Notify Moderator

fourthclassC wrote:

Appreciate all the replies. I have not actually looked at the slip rings yet. It is a 4kwatt onan. 03 Winnebago 324v. class C. I replaced the fuel pump and filter with Onan OEM about 2 years ago. Been running and starting great since then. But recently it shuts down after about 30 mins. with the AC on. Stays running with lower draw stuff like fans going.


Usually with slip ring and BRUSH problems the Onan will not start and run at all after releasing the start button. Because the needed AC voltage signal from the Brush/Slip rings is not being generated.

johnhicks

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Posted: 07/28/23 07:26pm Link  |  Quote  |  Print  |  Notify Moderator

As Doug points out, a gen with bad slip rings generally won't generate power at all and newer generators will not run. That load makes a difference sounds like a heat issue.


-jbh-

MrWizard

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Posted: 07/28/23 10:29pm Link  |  Quote  |  Print  |  Notify Moderator

Hours of use and environment are the deciding factors on slip rings condition,
Generally if low run time hours and high Humidity, there is a chance of dirty slip rings,
A generator used often is less likely to have this problem,
An over heat problem is more often the problem,
air flow over the engine,
Air flow thru the generator head,
Dusty control boards retaining heat,
I would take compressed air and blow every area of that Genny clean , especially hard to reach areas inside the generator, rodent nests create air blockage and cause heat problems


I can explain it to you.
But I Can Not understand it for you !

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fourthclassC

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Posted: 07/29/23 06:00am Link  |  Quote  |  Print  |  Notify Moderator

Thats great info. Thank you. I will check the entire unit for cooling restrictions.

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