Thread Number: 9014
?? F/Q Model 700 grinding noise...
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Post# 99571   5/31/2010 at 02:34 (3,660 days old) by beerad (Beautiful Vancouver BC)        

I have a F/Q Model 700 and it runs well and sounds strong when it is runing. When I turn the vac off, the motor makes a grrinding sound in the last 3 to 5 seconds of it winding down. Is that a worn motor bearing or worn brushes? or??

Post# 99573 , Reply# 1   5/31/2010 at 05:21 (3,659 days old) by xraytech ()        


I'm not sure what would make that sound, but my guess would be the bearings.


Post# 99579 , Reply# 2   5/31/2010 at 09:11 (3,659 days old) by scvacuumguy (SC)        

scvacuumguy's profile picture
Worn bearings for sure

Post# 99582 , Reply# 3   5/31/2010 at 09:33 (3,659 days old) by kirbykid63 (Wilmington Delaware)        
Bearings worn

I never had any luck with lamb motor bearing replacement,they sound just as bad with the new bearings.I recommend installing a new motor and your machine will be like new again.Lamb make the replacement motor which is not to expensive.

Post# 99583 , Reply# 4   5/31/2010 at 09:36 (3,659 days old) by powertank ()        

Actually, I've had great luck replacing the bearings. You just have to make sure to use high quality bearings made for the speed, and to put everything back together in the right order. I never reuse brushes and I wouldn't advise doing so unless they are made from unobtainium.

Post# 99584 , Reply# 5   5/31/2010 at 11:12 (3,659 days old) by electrolux~137 ()        



(Is that the same material that original cloth bags are made of ?!)

Post# 99634 , Reply# 6   6/1/2010 at 03:01 (3,659 days old) by beerad (Beautiful Vancouver BC)        

thanks guys...that really helps

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