Thread Number: 31349
/ Tag: 50s/60s/70s Vacuum Cleaners
Hoover Convertible Motor Troubleshooting |
[Down to Last] |
Post# 346735 , Reply# 1   3/8/2016 at 10:52 (2,942 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Could be the possible start of warn bearings? Or a slightly out of shape fan? eg. One of the blades slightly bent thus causing it to vibrate slightly upon start up? This post was last edited 03/08/2016 at 14:36 |
Post# 346792 , Reply# 3   3/8/2016 at 21:20 (2,942 days old) by vacuumlad1650 (Wauponsee, IL)   |   | |
Checkrate/Likes
 
1    
|
Post# 346838 , Reply# 4   3/9/2016 at 10:23 (2,941 days old) by kirbyvertibles (Independence, KS)   |   | |
Checkrate/Likes
 
1    
|
Post# 346882 , Reply# 5   3/9/2016 at 19:12 (2,941 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
It sounds like that could be it. Is this something I should address soon? The cleaner runs fine otherwise, just purrs like a Hoover should. |
Post# 347068 , Reply# 6   3/11/2016 at 13:04 (2,939 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
I should have mentioned previously that this is an intermittent problem; I used it yesterday and did not hear the noise. |
Post# 347339 , Reply# 7   3/13/2016 at 03:11 (2,937 days old) by MPN ()   |   | |
Checkrate/Likes
 
     
Hi, It's likely a stretched area on the belt, as the vibration/noise ceases after the belt warms up. |
Post# 347570 , Reply# 8   3/14/2016 at 18:53 (2,936 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
@MPN: There is definitely not any vibration nor is this a vibrating noise. I don't mean to dismiss you, but it definitely sounds more like arcing, as kirbyvertibles suggested. |
Post# 347583 , Reply# 9   3/14/2016 at 20:33 (2,936 days old) by MPN ()   |   | |
Checkrate/Likes
 
     
Does the noise change with the belt removed??? |
Post# 347737 , Reply# 11   3/16/2016 at 12:08 (2,934 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
I sometimes do hear the noise when the belt is removed. It is definitely more of a "sputtering" sound or a bunch of little scraping sounds. How would you recommend that I go about diagnosing this? What should I check for? |
Post# 347905 , Reply# 14   3/18/2016 at 16:02 (2,932 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Could be a small build up of dust on the brushes/commy. |
Post# 347994 , Reply# 15   3/19/2016 at 11:20 (2,931 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
How would you suggest I clean it? |
Post# 347995 , Reply# 16   3/19/2016 at 11:41 (2,931 days old) by HooverCelebrity (Germany)   |   | |
Checkrate/Likes
 
4    
Can you post any pictures of the machine? How about a model number? Have you tried completely rebuilding the motor instead of hypothesizing about what's wrong? That's what I do with most all of my machines, and they all run very nicely. |
Post# 348118 , Reply# 17   3/20/2016 at 16:45 (2,930 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
Close ups of armature, brushes and lower bearing. Motor was very dirty at first; I had to vacuum it out. The model is 719. Let me know what you think. |
Post# 348179 , Reply# 27   3/21/2016 at 15:45 (2,929 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Always use it dry. Make sure you wipe /vacuum the commy and brushes afterwards to remove any dust/sand. |
Post# 348225 , Reply# 30   3/22/2016 at 03:07 (2,928 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Yep. 220 is what I use. |
Post# 348240 , Reply# 32   3/22/2016 at 10:11 (2,928 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Sorry but I just realised that I've skipped out the part of the bearings. They do look a little rough and IMHO I would just replace both. |
Post# 348356 , Reply# 41   3/23/2016 at 13:36 (2,927 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
Here's the commutator after sanding w/ 220-grit wet/dry sandpaper. How does it look?
View Full Size
|
Post# 348357 , Reply# 42   3/23/2016 at 13:48 (2,927 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Looks much better IMHO. Belooks of it there's copper drag and bar burning. This is due to the commy over heating multiple times. Not sure how one fixes that though. If at all. |
Post# 348382 , Reply# 45   3/23/2016 at 16:49 (2,927 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
Yep. Steel wool works too. You've just got to make sure that there is no wire left. Vacuum and wipe it a lot afterwards. |
Post# 348391 , Reply# 46   3/23/2016 at 17:59 (2,927 days old) by hooverU4089 (CT)   |   | |
Checkrate/Likes
 
     
I could try steel wool. Not sure what you mean by "[y]ou've just got to make sure that there is no wire left." |
Post# 348423 , Reply# 50   3/24/2016 at 00:14 (2,927 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
When using steel wool, there's little bits of wire that come off of the wire pad that fall on the armature. |
Post# 348425 , Reply# 51   3/24/2016 at 00:23 (2,927 days old) by MPN ()   |   | |
Checkrate/Likes
 
     
"When using steel wool, there's little bits of wire that come off of the wire pad that fall on the armature." THE FASTEST WAY TO KILL an electric motor ! ! ! |
Post# 348429 , Reply# 52   3/24/2016 at 03:02 (2,926 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
     
That's why I said to make sure you vacuum it and "dust" it to make sure there is no remaining wire. |
Post# 348463 , Reply# 57   3/24/2016 at 10:54 (2,926 days old) by vacuumlover (UK)   |   | |
Checkrate/Likes
 
1    
An air compressor should of gotten rid of all the wire. |