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Thread Number: 40816
/ Tag: Pre-1950 Vacuum Cleaners
Kirby 515 motor turning slow |
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Post# 433663 , Reply# 1 10/17/2020 at 16:57 (1,280 days old) by KirbyClassicIII  (Milwaukie, Oregon) |
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Vaclover | ||
| Post# 433665 , Reply# 2 10/17/2020 at 17:42 (1,280 days old) by Vaclover (Freestate, Virginia, South Africa) | ||
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Mine is 240 Volts Mine is indeed a 240 Volt Version. Maybe i should just try to clean the comutator with a finer grid sanding paper. I know that seating stone will be the best option, but its very expensive here. It didnt had any sparks around the comutator before i took it apart.and it sounded right. | ||
| Post# 433684 , Reply# 3 10/17/2020 at 22:53 (1,279 days old) by Lesinutah (Utah) | ||
Bearings
Repack bottom motor bearing and vise a commute stone.
If you have an electriçal tester you can text the armature. I believe you test in pairs. Example 12 o'clock and 6 o'clock . If current is the same for each one it's either field or maybe fan is threaded to tight? Are you using older soft non knurled belts? There is a few different things to do to test the issue. | ||
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Post# 433691 , Reply# 4 10/18/2020 at 01:42 (1,279 days old) by tolivac (Greenville,NC) |
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Do the brushes move freely in the brushholders?That could cause arcing or erratic operation. | ||
| Post# 433692 , Reply# 5 10/18/2020 at 01:47 (1,279 days old) by Vaclover (Freestate, Virginia, South Africa) | ||
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Soft belt Its a soft belt on the brushroll, i didnt check to see if the brushes move freely, that may be the problem. Thanks for all the input, im going to check again today. Ruan | ||
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Post# 433697 , Reply# 6 10/18/2020 at 03:29 (1,279 days old) by KirbyClassicIII (Milwaukie, Oregon) |
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Vaclover | ||
| Post# 433699 , Reply# 7 10/18/2020 at 04:03 (1,279 days old) by Vaclover (Freestate, Virginia, South Africa) | ||
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Thanks Ben... Ben yes its got an 10 blade fan. Im just going to make sure when i take it off, its 10 or11, but im sure its 10. The motor also doesnt have that cardboard thing before the field coil like my 508's have. Will that make the motor run hot? When i tried it before opening the motor the suction was very good and much better than the 508, but now its almost the same as the 508. Ruan | ||
| Post# 433700 , Reply# 8 10/18/2020 at 04:07 (1,279 days old) by MadMan (Chicago, IL, USA) | ||
What grit number of sandpaper were you using? You couldn't have damaged it with 500+ grit. It's also important to blow off any leftover sand after you're done. Likely the brushes are binding or something happened that you need the brushes to be seated again. A stone isn't really necessary. As long as you didn't really tear up the commutator, you may simply need to run the motor long enough to break them in.
But, that being said, I have no idea the condition it's in, or what exactly it sounds like. So I don't know. | ||
| Post# 433704 , Reply# 9 10/18/2020 at 07:46 (1,279 days old) by bikerray (Middle Earth) | ||
Is the motor running the correct direction?
Did you take the leads off of the carbon brushes? If the wires are going to the wrong carbons the motor will run backwards and will run hot. Did you nick any of the wires on the armature? Did you nick any of the wires on the field coils? If there are shorts in the armature or field coils it will run hot as well. | ||
| Post# 433705 , Reply# 10 10/18/2020 at 07:55 (1,279 days old) by Vaclover (Freestate, Virginia, South Africa) | ||
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Bikerray, you have the answer!! I think its running backwards! I noticed the brushroll is running in the wrong direction!! Thanks a lot!! Im sure thats whats wrong with my one 508 also! Thanks a lot! I did indeed took out the field coils and im sure ive connected the leads the wrong way round. | ||
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Post# 433707 , Reply# 11 10/18/2020 at 08:06 (1,279 days old) by KirbyClassicIII (Milwaukie, Oregon) |
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Vaclover | ||
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Post# 433715 , Reply# 13 10/18/2020 at 10:08 (1,279 days old) by KirbyClassicIII (Milwaukie, Oregon) |
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Vaclover | ||
| Post# 433764 , Reply# 15 10/18/2020 at 22:51 (1,278 days old) by vacman1961 (North Babylon, New York) | ||
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You need to set the carbon brushes in with some commutator chalk or stone while the machine is running. there is a space between the rear wheels where you can insert the chalk as the motor is running. | ||
| Post# 433767 , Reply# 16 10/18/2020 at 22:59 (1,278 days old) by Lesinutah (Utah) | ||
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BackwRds
This is the first I heard if this. Its a commuter stone/seater.
I put my armature in a drill and do it. Thus wxy I don't have to blow out the dust. I think machines where he lives are rare. His 508 iirc has a black belt lifter and 508 bag x d tri.. I not sure how rare but his 50( had the original box and we everything. I know it's rare for a normal 508. I imagine there's very few out their. | ||
| Post# 433832 , Reply# 18 10/20/2020 at 00:21 (1,277 days old) by MadMan (Chicago, IL, USA) | ||
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