Sewing Machine Motor Repair
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- Опубликовано: 4 окт 2024
- The video will help you understand how to clean and to fix an electric motor of home sewing machine.
Let's look what is inside a sewing electric motor. The video helps you understand how to clean and to fix an electric motor of household sewing machine at home.
Note: Industrial sewing machines have another type of electric motors.
First, it should be noted that repair a sewing machine motor must be carried out by an electrician only. But if you are interested to see how motor is designed, watch this video. In this video the sewing machine motor is completely understands and master gives recommendations for repair it.
Such type of motors is used on older models of sewing machines most. Modern models of sewing machines are equipped with electric motors that are located inside housing of sewing machine.
Let's look what is inside a sewing electric motor. The video helps you understand how to clean and to fix an electric motor of household sewing machine at home. First, it should be noted that repair a sewing machine motor must be carried out by an electrician only.
To remove the graffiti brushes you need unscrew out these caps first.
The axis of motor has two bearings that should be lubricated with a few oils drops
The commutator bar surface should not have any dirt and scratches, soot. You can delete them using very fine sandpaper.
All windings coils must have clean and bright wires without melted darkened areas.
If two graphite brushes are very short they need to be replaced with new ones.
Thanks so much for this video, the sandpaper trick worked a treat on my sister's sewing machine motor and got it working again 😁
Very thin sandpaper. Thank you
Take no notice of hurtful comments. This is a good video.
Before using sandpaper, try using an eraser to remove carbon build up on the commutator, it may work.
Also, eventually the capacitor will go bad. The ends will bulge and the motor may not be able to be tuned off without disconnecting the power supply. This capacitor is to stop radio waves being created by the motor switching rapidly on and off, which causes interference with old televisions and radios. The capacitor can be replaced with an identical one, of more commonly these days removed as the interference does not cause problems with modern TVs. There may also be a capacitor in the foot pedal which can also be removed or replaced.
The usual warnings about working with vintage electrics apply of course.
I am really enjoying your channel particularly the tailoring tips. Thank you. All the best.
A necessary and professional addition to this video. Thank you.
Thank you!
The music is terrible, but the video is so clear and really empowering for those who are afraid of tackling the stuff...I will now, thank you.
thank
Agree 100% about the annoying music but it is easy to mute the sound since there is no speaking in the video.
Graffiti brushes?
So basically it’s just an universal motor with commutator and carbon brushes! Good to know and tnx for sharing with us.
Thank
contrary to other comments i kind of like the music lol. thanks
I bought used delta sewing machine while sewing produce smoke and smell like burning, what to do please advice.
Yooooh same problem😢😢😢
موٹر کے کوائل جل جائے تو نئے ڈالنے کا طریقہ بتائیں
I didn't find this video before I tackled the motor and now I know the graffiti brushes are broken... Do you know where I can purchase them? Thank you for the wonderful video!
Amazon.com I think
May I know what is to be repair with the sewing motor if it gaves only a small sound?
If the engine in the car is running quietly, is it bad? Similarly, the sewing machine motor.
Hi, what is the partnumber of the brushes? Where can I buy them (in Holland?)
Thank you for the video!!
Did you found something? Im searching brushes too
How check the winding continuety??
The motor of my sewing machine has spark while I am sewing is that normal?Tia for the answer
موٹر کے کوائل بنانے کا طریقہ بتائیں
hi i want to ask about this motor. first im new to this so really dont know anything about it. i work in a company that manufacturing fishing rod. they use 50 sewing machine to install paint (using paint brush) to the fishing rod by using this kind of motor. the thing is, it will got replaced every single week. the maintenance team always shorten or make smaller of that rectangle black carbon with spring (i guess its called brush). i confused why did they do that? i ask them but they dont have certain answer. they keep saying if they make it shorter or smaller, it will go faster.
is that right? and what is the function of that carbon brush exactly? THanks a lot
Brushes are necessary to form contact on the surface of the rotor. The longer the brush, the greater the force of the spring pressing them against the surface of the rotor commutator.
I don’t understand why they need to be shortened, they themselves are erased from prolonged work. They need to be replaced with new ones if they are too short.
And the second point. The surface of the brush pressed against the rotor must have a semicircular shape.
Draw your own conclusions, I'm not an electrician.
@@sewway ahh i see. Thanks for your info. I will ask them tommorow but at least i know the basic theory. Have a good day
What happens if the bearings are bad? How do you replace them. One of mine wobbles.
The motor will make a lot of noise, and over time, the bearing may jam
can you kindly help me. The rotating hook is out of timing .
This is a complex type of repair, you need a master. I would help you, but I think the airfare will be too high.
Singer motor model hf 07150 don't have any graffiti brush holes and no screws and bolts to open on that side of the motor And how can I take out the 2 big pointed screws...
This video is made only to explain how the sewing machine electric motor works.
All repair issues should be addressed in service centers.
@@sewway
Well I have to do my own thing...! Service centres in Trinidad don't have much of a knowledge since I repaired my own Serger Sewing Machine and they wasn't capable of doing such.
Well, in that case, try to figure out how to do it yourself. Smart and skillful people can always find a solution to any problem.
@@sewway I did small appliance repair 31 years ago and In the last 22 years I used my little knowledge and skills...
I partially got the motor out and will have to build a metallic plate and solder it since the plastic chrome broke to circulate with the electrical flow and brushes...!
But will try and but a new motor since I have to sew and I'm a Tailor and a Fashion Designer...
Hoped that the new motor works efficient and effective...
Can you show a video of how to remove the capacitor?
To remove the capacitor, you will need an electric soldering iron.
@Sewway mine doesn't look like most videos I've seen so it's annoying 😅 it looks like that, but even after removing I'm having issues with the motor. It won't turn off!
what is the diameter of the enamel wire and the number of turns?
The diameter of the wire is determined as follows: wind 10 turns on pencil and measure the width of 10 turns with a ruler, divide by 10. Get the size of the wire thickness. Determine the number of turns can by unwinding the wire.
But you yourself will not be able to replace the wiring. Better to buy a new electric drive.
where can i order this sewing machine motor TJ brand
I don't know maybe amazon.com
I need the size of capacitor and how to test the capacitor if it is Ok
The capacitor does not affect the operation of the motor, it only dampens radio interference. Feel free to remove it
@@sewway I have this small showing machiner motor and it has a small condenser.
According to my sewing machine repairman, the commutator has worn down and the entire motor needs to be replaced. Is there a way to restore the commutator?
My sewing machine starts to smell after like one minute of sewing what should i do
The motor may need to be replaced, contact the service center. This is a complex type of repair.
How do you do anything with those hideous gloves?
Gamitan pa na ug transformer Ang motor
Kon ikaw adunay boltahe nga 220 volts, nan gikinahanglan ang usa ka step-down transformer alang niini nga motor (kini mao ang 110 volts).
video ist gut (ohne musik)
Danke. Dieses Video ist eines der ersten und daher gibt es Nachteile, wir werden Ihren Rat berücksichtigen.
If the motor repairing should be carried out by an electrician then why are you showing this video to us?
Agarch.
Agr ........ . .. . ..
...c 1:12 1:12 1:12
GRAFFITI brushes...hahahah or maybe you got graphene brushes there? WE CALL IT GRAPHITE BRUSHES. GRAPHITE - same as in the pencil.
Thanks for noticing.
@@sewway no problem hahaha this is what happens when you make mistakes in front of people. get used to it