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post #1 of 7 (permalink) Old 11-13-2014, 01:22 AM Thread Starter
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Default random orbital sander

Hi all I need some advice my sander seems to have some sort of a problem when being used it will run just fine and the for some unknown reason will slow down and the pick up speed . please help. carl ps it is an AEG ex400

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post #2 of 7 (permalink) Old 11-13-2014, 01:40 AM
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Carl I had the same problem with 2 Porter Cable sanders I have almost simultaneously. Both were bad bearings. The most expensive was almost $30 but I could have gotten them a lot cheaper off ebay if I was willing to wait.

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post #3 of 7 (permalink) Old 11-13-2014, 02:06 AM
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Originally Posted by carl.p View Post
Hi all I need some advice my sander seems to have some sort of a problem when being used it will run just fine and the for some unknown reason will slow down and the pick up speed . please help. carl ps it is an AEG ex400
Hi Carl...
look to the brushes and dirty commutator...
Attached Files
File Type: pdf Is it the Brushes or the Switch.pdf (182.5 KB, 31 views)

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
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post #4 of 7 (permalink) Old 11-13-2014, 02:38 AM
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'Sfunny, my Clark 'jitterbug' pneumatic r.o. sander does the same thing...but in my case it's from sanding dust and moisture in the airline. Crud by any other name, eh?
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post #5 of 7 (permalink) Old 11-13-2014, 02:47 AM
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I heard someone in the back there ask, "What's a jitterbug?"
8K rpm sanding is what that is...
Clarke Jitterbug Air Sander

"Won't that just go through my veneer?" Yes, Johnny, yes it will!
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post #6 of 7 (permalink) Old 11-13-2014, 03:58 AM
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I heard someone in the back there ask, "What's a jitterbug?"
8K rpm sanding is what that is...
Clarke Jitterbug Air Sander

"Won't that just go through my veneer?" Yes, Johnny, yes it will!
man... somebody sold you a bill of goods...
this is jitterbug...

https://www.youtube.com/watch?v=p4PEBG5BsI8

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #7 of 7 (permalink) Old 11-13-2014, 06:21 AM Thread Starter
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Default random orbital sander

Hi all many thanks to you very kind gentlemen on this forum stripped the sander down gave it a good clean and replaced one bearing. the machine is now working very well. again many thanks chaps carl

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