Author Topic: st generator fan replacement  (Read 4615 times)

sarawnw

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st generator fan replacement
« on: September 07, 2009, 06:21:26 PM »
Hi

I have a ST-12 generator head that gave up the plastic fan.  Does any have any ideas were to find a replacement?

The generator has about 2,000 hours operating time in a approximately 90 to 100 F  ambient temperature.  From the breaks, it looks like it may have been cracked originally and I did not notice during the initial  tear down.   I do not believe I cracked it during assembly.

Has any one used external cooling fan to cool a generator?  What do I need to look for?


Any help would great be appreciated


Sara

Doug

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Re: st generator fan replacement
« Reply #1 on: September 08, 2009, 01:38:55 AM »
Stop by an electrci motor rewind shop often they have cooling fans and universal fit fans ect.

Soemthing that might work at any rate check it out...
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europachris

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Re: st generator fan replacement
« Reply #2 on: September 08, 2009, 01:02:47 PM »
Hi

I have a ST-12 generator head that gave up the plastic fan.  Does any have any ideas were to find a replacement?

The generator has about 2,000 hours operating time in a approximately 90 to 100 F  ambient temperature.  From the breaks, it looks like it may have been cracked originally and I did not notice during the initial  tear down.   I do not believe I cracked it during assembly.

Has any one used external cooling fan to cool a generator?  What do I need to look for?


Any help would great be appreciated


Sara

+1 on the motor repair shop - they should have something that will fit or easily be modified to fit.  It wouldn't be hard either to make a "plenum" from sheet metal around the cooling holes on one end and rig up a 6" muffin fan to pull air through the head, but that's just another failure looking for a place to happen.

I would be suspect of ANY plastic part on a Chinese anything.  The plastic is of usually very low quality and over time (and doubly so with heat and/or sunlight) shrinks, gets brittle, and with any sort of continuous load such as a shaft fit, will crack and fall apart.  GOOD plastics, such as glass reinforced nylon, are incredibly strong and would be fine for the job.

sarawnw

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Re: st generator fan replacement
« Reply #3 on: September 12, 2009, 12:13:13 PM »
Hi
Thank you for the response.  I have been looking locally and sent emails to several of the motor repair shops on the internet without sucess. 

The problem appears to be the large shaft size of 42mm.  Forgive my ignorance,  is this a abnormally large size motor shaft? 

What is the common name for this part that moves through the generator, Fan , Blower, 

Is there a company or a catalog that I can order one from? 

Your exactly right about the plastic,  there was bubles in the plastic where one of the breaks occured. 

sara

apogee_man

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Re: st generator fan replacement
« Reply #4 on: September 12, 2009, 04:17:58 PM »
Sara,

You might consider giving these guys a call.

Since they're open to selling individual parts, they might be able to help you...

http://www.eurtonelectric.com/

Steve

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Re: st generator fan replacement
« Reply #5 on: September 29, 2009, 05:30:12 AM »

Hi Sara

Talk to Tom Osborne from Central Georgia Generator he has an ebay shop and imports ST spares regularly he may be able to get you a genuine metal fan replacement for you to fit your ST

Cheers

Stephen Hutson
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AUSTRALIA
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