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Bernina 930 handwheel frozen!

I have a beautiful 930 that just had a service and cleaning and a fine bill of health from my Bernina tech. I go to sew and the handwheel is frozen. I have checked everything I think it could be, but is there something internally that could have gone wrong? I am so baffled.

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Bernina 930 record oil diagram

Yes, your Bernina 930 does need regular and thorough cleaning and oiling. Liquid Tri-Flow Synthetic Lube (from the local hardware store or bike shop) is great!

Wiggle the handwheel and apply a drop or two every place where metal rubs against metal. Red arrows below show the oil port locations, but if you miss a couple, you will get them by using the "wiggle" method. Do NOT oil the nylon gears or belt, and STAY AWAY from the basting stitch mechanism in the middle of the needle bar. Be sure to wiggle the stitch selectors and dials and oil those too. There are some very important oil ports on the take-up lever that will require the handwheel to be rotated slowly to see them all. And don't forget a very important oil port behind the bobbin case/hook mechanism next to the machine's metal case. Also, get the feed dog mechanism--a frequent part that seizes without oil.

_930 oiling-midqa4xt2jjuv4lxb4gbt5zn-2-0.png Of course, a drop of oil at the base of the hook every 8 hours of sewing is a necessity to keep your machine sewing happily.

Good luck!

Nov 09, 2017 | Bernina Sewing Machines

1 Answer

Berninamatic 910 is frozen. Where can I find manuals so that I can service it?

May be difficult to find for your machine because of its age.

Something may be close on this Bernina site (the 910 looks a lot like the 930 without the basting stitch, perhaps the needle up/down function, and fewer decorative stitches):


Most likely the machine has seized due to lack of fresh oil. The old oil has solidified and turned to glue and has stuck the moving parts together. Do not force it!

Remove the free-arm cover.

Open the top. (There is a metal peg on the top left with a screw slot in the center. Turn this screw 1/4 turn. Now lift the bobbin winder and you will see another METAL screw. Turn that 1/4 turn. Do NOT mess with the plastic screw unless you want to mess up the winder.) Now you can gently lift off the top. Pay particular attention how it fits as you will need to jimmy it a bit to get it back on without bending anything!!!

Now you can remove the cover on the left side over the needlebar.

Pick up a bottle of liquid Tri-Flow Synthetic Lube (hardware store or bike shop) with the small plastic tube dispenser. Gently rock the handwheel and apply a couple drops of Tri-Flow every place that metal rubs on metal. Do NOT oil the white nylon gears, the cams, or the belt!!! If you look closely, you will most likely see some small holes that are actually oil ports. There is a large one just on the inside of the case (left of the belt) that is part of the handwheel mechanism. This is probably where your problem exists. Do NOT over-oil or you'll be cleaning up oil for a long time and it could get into the electronics.

Work your way across the top of the machine. Be sure to move the stitch selector levers, the buttonhole knob, stitch width dial, etc and get oil into those metal mechanisms as well. There are 4 or 5 oil ports on the needlebar knuckles. Be sure to get those--one or two may be hidden so you'll need to rotate the handwheel and use the long tube to get to a couple. Oil the needlebar where it goes through the case, be sure to hit the presser foot lever mechanism.

Work your way down to the bobbin area. Be sure to get the oil port at the very back of the feed dogs next to the case (this is a very important one!). Get oil on all the metal moving parts and be sure to toggle the feed dog knob and get that mechanism too.

Now, take a handheld hairdryer and direct hot air into the internal mechanism of the machine. I've gotten the metal so warm it was difficult to touch. You may need to alternate between oil and heat, but if there is nothing mechanically wrong with your machine, this will get it running smoothly again. I've used this method on several seized mechanical Berninas and it has never failed unless a nylon gear is cracked or there is something else mechanically awry.

For sure, every time you start a project, apply a couple drops of oil where the hook and shuttle rub together (see the bottom photo below, the very bottom arrow on the left) or see page 45 of the Bernina 930 manual (Maintenance section).

Be sure to lube your machine often. Once you are familiar with the sound of a smooth-running machine, you will recognize by its sound when it needs some TLC. Other than that, plan to lightly oil every 40 hours of sewing. If in storage, every 6 months whether in use or not.

The photo below is actually a Bernina 830, but the mechanism is fairly similar to the 930/910.


Oct 09, 2016 | Sewing Machines

1 Answer

I cant get my stitch Width Zig zag knob to turn om my bernina record 930. Any one have this problem?

Most likely because your machine has not been serviced (oiled & cleaned) in a long time and the old oil has turned to glue and seized. This is probably the most common problem with mechanical sewing machines. A mechanical sewing machine should be regularly every 40 hours of sewing use or at least every six months when not in use. You may want to take it to a Bernina service technician. Ask for a bottle of Bernina oil for CB hook machines and ask if they will show you how to oil it.

My machine Bernina 830 does not run

Bernina 830 won zig zag won buttonhole no decorative stitch

Bernina 930 Record oiling diagram

Questions Answers for Bernina seized Sewing Machines

Aug 14, 2016 | Bernina Sewing Machines

1 Answer

Bernina Record 930 electronic sewing machine will not zigzag

How long has it been since it has been cleaned and oiled? Mechanical machines, like the 930, need frequent oiling with fresh, good quality oil. (You may want to pick up some Bernina oil for CB Hook machines.)

Apply only 1-2 drops of oil in each spot (look for oil ports--little holes where oil should be placed). Do NOT oil in the middle of the needlebar. This is where the basting stitch mechanism resides and if you oil it, the basting stitch may lock up requiring service.

A good suggestion for oiling is to gently rotate the handwheel and watch where metal rubs against metal. Apply a couple of drops of oil in each spot. Do NOT oil the metal cams, the two plastic gears, or the belt. Next, gently move the selector levers and apply oil there too.

If it has been quite some time since you've oiled, you may have to re-apply oil to get things lubed again. If the zig-zag is still not working, you can direct a handheld hairdryer into the internal mechanism and apply heated air. (Be careful, the metal can get hot to the touch!) Repeat the oil and heat until the zig-zag selector begins to work.

The other part that may be frozen is the upper left side where the light bulb resides (you'll have to remove the screws that hold the covering on). Set the machine to zig-zag and move the handwheel and watch where things move there, also work the lever to raise/lower the presser foot. Again, AVOID the middle of the needlebar==basting stitch mechanism.

Your machine should be oiled every time you finish a big sewing job, every time you install a new bobbin, or every six months if not in frequent use. The bobbin race should be oiled more frequently. When you are familiar with your machine, you will recognize the change in the machine's sound and know that it needs some TLC--cleaning/oiling.


Nov 13, 2015 | Bernina Sewing Machines

1 Answer

Where can i find a diagram of the handwheel assembly on a Bernina 930 electronic

Explain more. I had a similar problem and posted a fix. Under Bernina 930

May 06, 2015 | Sewing Machines

2 Answers

Bernina Record 730 hand wheel stuck


Feb 06, 2014 | Bernina Sewing Machines

2 Answers

My wheel will nor turn and my machine will not sew on my 930

sounds like it's time to have the sewing machine serviced.

Feb 07, 2013 | Bernina Sewing Machines

5 Answers

Bernina Record 930 Electronic, seldom use, like new. Wheel will not move. Was doing stright sewing, machine slowed down then froze. Maching is clean. No instruction book or manual. Machine belongs to my...

Bernina 930 Records are notorious for the basting stitch sticking which eventually locks up the machine. To prevent this from happening, be sure to run the basting stitch for a few minutes every month. If it is stuck, you'll need to take it to a Bernina technician.

If it is not the basting stitch, it could be a broken plastic gear (trip to the Bernina technician) or it needs oiling.

If it is not a broken gear, then it probably needs oiling. Your Bernina mechanical requires regular oiling and cleaning even if you don't use it (ie, every time you change the bobbin, every 8 hours of sewing, or every 6 months if not in use). HINT: recommend Bernina oil or similar good quality oil for mechanical machines, NOT 3-in-1 oil, WD-40, or cooking oil!!! One or two drops of oil in every oil hole and every place that metal part rubs against metal part.

Treat your Bernina well and it will serve you well for many years.

Oct 23, 2009 | Bernina Sewing Machines

3 Answers

Bernina 930 where to put 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)

May 18, 2008 | Bernina Artista 180

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