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Old 04-08-2009, 02:00 PM   #1
kruler
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porter cable 7424, is this noise normal?

I just bought a porter cable 7424 polisher (brand new) and it seems to make a pretty loud bearing noise. From those with experience with this tool, is this normal? The noise is louder in person than in the video

http://www.youtube.com/watch?v=BA1ILvy2Ua0

Thanks for your help
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Old 04-08-2009, 05:31 PM   #2
ImolaZHP
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yes it's normal because you are "dry running" it. (also causing more stress on the machine btw)


you need to put the backing plate and pad on, and have it against the surface of the vehicle before running it!
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Old 04-08-2009, 06:46 PM   #3
kruler
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I put the backing plate and pad on and ran it against my hand with a bit of pressure, made the same noise...
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Old 04-08-2009, 06:47 PM   #4
ImolaZHP
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run it on more than speed 1..

most correcting is done on 6 anyways
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Old 04-09-2009, 10:19 PM   #5
ImolaZHP
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Quote:
Originally Posted by ImolaZHP View Post
run it on more than speed 1..

most correcting is done on 6 anyways
EDIT: I checked today with mine on speed 1 and it makes the same noise. i think its just because of the counterweight moving at a slow speed, nothing to worry about.
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