Question about Sewing Machines
The motor will have to be replaced, here are 2 links for parts or you can contact a bernina dealer and order one or have them put a new motor on the machine.
Posted on Jul 27, 2013
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Posted on Jan 02, 2017
SOURCE: 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 firstname.lastname@example.org
Posted on Feb 17, 2008
Hi , the pedal micro switch are stuck , you may visit fixya repair service just , (enter zip area), you can find sewing machine repairman near you
Posted on Feb 22, 2008
SOURCE: Timing for Bernina Virtuosa 153
Timing these machines gets pretty involved such as in just removing the covers. You need a grounding ******** your wrist as the cables all need to be unplugged and you don't want to send a static charge from yourself to the circuit boards. They are expensive. Then you need special sized metal pins to pin several pinning points so the needle, hook, stepping motors and feed dogs all co-ordinate with each other. Also several places need certain guages to set less than .1 millimeter size distances between different places to avoid other problems. You also need several sized torx screwdrivers and the knowledge to adjust the upper and lower tensions. The upper tension alone has at least 3 or four places that need to be in the correct position.
All of the above has to be done in a certain order also.
Its complicated enough. If someone is going to walk you through this over the phone expect it to be complicated. Even if you had a copy of the manual (which could be a copywrite infringment on newer machines) you can expect it to be difficult.
My advice is to leave it to the professionals to have it done right.
Posted on Jun 20, 2008
SOURCE: how do i oil my bernina 801?
Please do not oil anything with WD40, it is an alcohol based cleaner hense why it's flammable. No where on the container will it say anything about lubricating, it will merely dry out your machine. We use it, but only to clean metal parts... we then clean it off and let it evaporate for a day before applying oil.
There are two key points I suggest customers can do themselves to help lengthen the life of their machine. One is your hook and the other is the needle bar...
Hook - Open your bobbin door, removee the bobbin case/bobbin. On the upper left corner there is a small latch, push in the latch and your shuttle race ring will fall down forward. You can now remove your stainless steel hook. You need to keep this hook clean and the lip it fits back into clean and void of lint and debris. On the back of this hook or the "lip" that the hook fits back into apply a small amount of hook/sewing machine oil.
Needle Bar - Open up your head cover, the needle and needle bar clamp is attached to a long stainless steel rod that travels vertically inside your head. All sewing machines have a needle bar that looks like this. This bar travels thru two brackets attached to the frame of the machine. Rotate your handwheel and clean the needle bar well of debris. Rotate the handwheel so that the needlebar is in it's highest point and apply a small amount of oil to the upper and lower bracket of the frame, rotate the handwheel so the needlebar slides back down and therefore lubricating it and the inside of the brackets.
Hook oil or sewing machine oil is relatively inexpensive from all quilt, sewing machine, repair shops. Be sure to take your machine in a minimum of every three years for proper cleaning and lubricating of all the other parts (This is of course for average home sewing machine use 8hours a week)
Posted on Jan 08, 2009
Basically it is a matter of a stuck part. Flip open the top by prying up on the front or ends of the lid. You already noticed the hinges on the back. When you get it open, exercise the right hand lever on top (marked ZZ at bottom and 1-20 at top. If you look just to the right of this lever against the back wall you will see that it moves a little part back and forth into triangle shaped grooves. The part is not going completely into the grooves so drop some oil in there and exercise it a few more times, using your fingers if necessary to make the part move into the triangle grooves at the front and back. After a while it will loosen up where it should operate by itself smoothly . Hope this helps, I know it will.
Posted on Feb 13, 2009
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