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I have a bernina 830, I replaced the motor but forget how the wiring goes, please help.

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  • gsian459 Jul 23, 2009

    2 wires from the motor are blue,
    2 wires from the machine to motor are white
    in the motor housing there is a resister with white, brown, and black wiring

  • yadayada
    yadayada May 11, 2010

    what color are the wires?

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The 830 has 3 'banks' of terminals to connect to. with the motor in the cover and laying over on its side so you can see the motor and wiring, one motor wire goes to the teminal closest to the machine pulley and the other motor wire goes to the middle terminal.

scott

Posted on Jul 26, 2009

  • Kelly Jones Sep 24, 2013

    I have the same problem. I have the gray and black wire connected together with a resistor and I have the white wire and two motor wires. Any help would be appreciated.

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Concerning 1970s 830 Bernina. There is no motor sound..nothing. Are the carbon brushes in the pedal?


The 830 models varied so I'm not sure. My machine looks like this:

Bernina 830 sewing machine feet pedal accessory box table instruction...

If you scroll over to the photo of the motor, there is a white plug which pulls out. Underneath, there is a screw. The carbon brush may be there. However, some 830s had the speed switch on the machine (right above the knee control) and others have it in the foot pedal.

I found the following information in my computer files that may be helpful: Bernina 830 Motor Brush Replacement

My machine is actually a Bernina 830 (mechanical 34 years old) I need to know how to get the housing off the motor so my hubby can replace the brushes

Re: sewng machine motor housing

DISASSEMBLY TO INSPECT OR CHANGE BERNINA 830 MOTOR BRUSHES:

Remove the big plastic cover piece on the bottom of the machine with the single screw in the center.

Remove the machine's end panel by removing the single silver screw from underneath the bottom middle of the side panel. Pull the bottom of the side panel out and down to remove it. It comes off easily.

Remove the two screws under the motor assembly (silver screws with black washers).

Swivel the motor assembly enough to remove the belt.
There is a another plastic panel on the motor assembly over the motor itself. Remove the two phillips head screws to remove this panel.

At this point you can see the commutator and inspect the "business" ends of the brushes. (In our case, one brush was almost gone and there was nothing left of the second brush except the spring!)

You can then slide the motor out of the housing. I pushed on the motor pulley and pulled on the other end of the motor with pliers. The motor comes out rather easily, but be careful not to disturb the wires any more than necessary.

With the motor exposed, unscrew the caps over the brushes and remove the brushes.

Our motor's commutator looks significantly worn and the motor may need to be replaced.
===============


FWIW, if your machine hasn't been oiled for a long time, you should probably take time to do that. When the old oil solidifies, it sticks the moving parts together. Forcing the motor to try to run the machine can damage the machine. Use fresh good quality sewing machine oil or (I use) liquid Tri-Flow Synthetic Lube and apply a couple drops every place metal rubs on metal. (Wiggle the handwheel and watch where things move.) Do NOT oil belts, synthetic gears, cams.



...

Oct 22, 2016 | Bernina Sewing Machines

1 Answer

I need a wire diagram for my bernina 830, please help I am out of commission until 8 get this back together! ! I have the original machine manual but that doesn't go into the wiring of course! I had to...


You will have to deal with this site being in German but it's not difficult to get to grips with. The site is a bit randomly disorganised (much better than it used to be). You'll find lots of other information scattered about the site.

Try the following links:
S21 Elektrik 1 Herzogenbuchsee Info BERNINA Service Tipps Lenco Switzerland

S22 Motor Service Herzogenbuchsee Info BERNINA Service Tipps Lenco...

and here:

830 Record Serie Herzogenbuchsee Info BERNINA Service Tipps Lenco...

I hope this all helps.

Mar 17, 2015 | Brother Sewing Machines

1 Answer

I have a bernina record 830 and i want instructions to install motor on it


You ought to look at the link below. The site is in German but contains loads of information on the linked page and also elsewhere. German isn't insurmountable as a problem these days with all those translation facilities.
830 Record Serie Herzogenbuchsee Info BERNINA Service Tipps Lenco...

Feb 03, 2015 | Bernina Sewing Machines

1 Answer

What to do when foot pedal just stopped working on old Bernina 830


There are a few problems possible. Assuming that there is not a mains (house) power problem, use the following logic to sort out the problem:
1. Do you have a light (assuming that the light bulb is good)? continue to #2.
2. With the machine unthreaded, the presser foot up, and the power cable plugs fully plugged in at the motor and foot control, depress the control to the run position.
Carefully bend and wiggle the cables at the plug locations one at a time. If the motor runs, the cable wires are damaged so you will replace the cable.
3. If available, try a (known good foot control) from another Bernina 830 of that exact vintage.
If the test foot control runs the machine, replace your foot control. Note: If the foot control is a type 213 for very old models, suggest that the control be replaced with a two wire electronic phase type control. (requires the foot control plug end to be cut off and rewired to the new phase controller). These electronic phase controls can be purchased from EBAY. Stay away from the Bernina type 213 control if possible. The type 213 controls have not been available for many years and it is highly likely that these controls are in a used condition, so you will not know if it has been properly adjusted.
If the 830 is a later model machine with the type 232 or 290 foot control and it is determined to be defective, no problem as they can be repaired.
4. If the (known good foot control) still does not work, you can assume that the motor has a problem. Motors for the Bernina 830 are occasionally available on EBAY and other sources.
Note: If the motor brushes have worn out and the commutator has been damaged, the motor is also salvageable.
-------------
Note: Always unplug the machine from the mains power when not in use as per Bernina instructions.


SewTechnical Home

Jun 05, 2014 | Bernina Sewing Machines

2 Answers

I need a Bernina 830 condenser


Do you mean the multi-part condenser that's used across the motor windings, or the one in the foot controller ?

Oct 28, 2011 | Bernina Artista 180

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Bernina 830 old style need replacment part -under extention table


The clamping yokes for Bernina sewing tables for models 830 and earlier models were hand fitted parts. Welding this may change the geometry so that the table may not fit at all. Additionally the material is diecast AL, not cast iron, and may or may not accept TIG welding applications.

Aug 27, 2009 | Bernina Sewing Machines

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Bernina 830, worked fine until today... think it


there is a board inside the foot pedal that goes out sometimes you can check this by flipping the foot pedal upside down and at the top right there is a small hole where you can adjust the speed with a flat head screwdriver but be gentle it breaks easy, if its out you can take it to a bernina dealer and they might have a reapired one or they can send yours off for repair since that part is repair only

Jun 26, 2009 | Sewing Machines

2 Answers

Sewng machine motor housing


DISASSEMBLY TO INSPECT OR CHANGE BERNINA 830 MOTOR BRUSHES:

Remove the big plastic cover piece on the bottom of the machine with the single screw in the center.

Remove the machine's end panel by removing the single silver screw from underneath the bottom middle of the side panel. Pull the bottom of the side panel out and down to remove it. It comes off easily.

Remove the two screws under the motor assembly (silver screws with black washers).

Swivel the motor assembly enough to remove the belt.
There is a another plastic panel on the motor assembly over the motor itself. Remove the two phillips head screws to remove this panel.

At this point you can see the commutator and inspect the "business" ends of the brushes. (In our case, one brush was almost gone and there was nothing left of the second brush except the spring!)

You can then slide the motor out of the housing. I pushed on the motor pulley and pulled on the other end of the motor with pliers. The motor comes out rather easily, but be careful not to disturb the wires any more than necessary.

With the motor exposed, unscrew the caps over the brushes and remove the brushes.

Our motor's commutator looks significantly worn and the motor may need to be replaced. If you find a source for the brushes or a replacment motor, please let me know! Thanks, John john@jldnet.com

Jan 27, 2008 | Bernina Activa 130

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