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Do i have a gear problem with my necchi lydia 3 sewing machine

I oiled the machine  and worked with it to get it to run but in looking under the black end cover it looked like there were  two worm gears one turned the vertical one did not.  Should it?  Interesting! We have the same problem with my Lydia 3. The shaft with the cams for zig-zag and decorative stitches doesn't turn. It appears that the worm gear is fine, but the gear at the top of the shaft holding the cams does not turn. Help!!

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Patrick Michaels

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Sounds like a service call in the making..those worm gears are delicate and not that easy to work with..you like to take apart complex machinery, by chance?

Posted on Apr 27, 2008

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Where to oil your sewing machine


The rule of thumb about oiling your sewing machine is to put one drop of oil (sewing machine oil only, please!) wherever one metal part moves against another. Do that, and you won't go wrong. You can also look for the oil ports -- small holes in metal gears and housings--I've posted a good photo at www.robbiesews.blogspot.com--where you put one drop of sewing machine oil. Don't use oil on the gears themselves--use sewing machine grease instead.

Oil ports and places where metal moves against metal can be found in three locations: on the top of the machine, under the cover; on the bottom of the machine; and behind the access door (or panel) on the left side of the machine head.

Here's a generic sketch:
1fc907a.jpg

Note: Please refer to your sewing machine manual to see if your machine is self-oiling. If it is, disregard this note--you do not oil those machines.


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I have a Singer 7258 and the hand wheel is difficult to turn and the machinew stops working.


Many things can cause a machine to be hard to turn. Lint and tread are the first suspects. Thread can be caught in the shafts or gears and this will cause a bind. I have found entire spools of thread under the hand wheel. This was not even the thread she was sewing with at the time. Watch this video of how it happened.

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I have brother project runway computerized machine.its making some weird noise when the handle wheel rotates slowly and also near the needle shaft area.manual doesn't suggest to oil.what can I do to get...


There are some areas of the machine which cannot be accessed for home servicing - the covers need to be opened up to access them. If the hand wheel is heavy to turn then you may be at the beginning of a needle bar seizure, given the noise at that end of the machine - this will usually sound like a groan. We see this occasionally in machines which have been worked hard without servicing. If you have caught it early, it should be solved by a service at your local sewing centre.
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How do I unjam the gears in my bernina 830?


If this is a Bernina 830 Record and the handwheel is stiff or does not turn, about 98% of the time the machine needs oil. Another problem could be a cracked or broken gear (one or both of the white plastic gears in the top but unless you are very handy, your Bernina tech should probably take care of this repair.)

Mechanical machines need to be oiled regularly just like your car. If the machine sets in storage for a while or is used often but not oiled or cleaned regularly, the oil that exists in the machine will eventually thicken and acts like glue. (Sometimes you can see a dirty-looking dark gold or brownish goop which is usually old oil.) Then your machine is frozen.

There are quite a few oil holes (both in the top and bottom of a Bernina mechanical) that require periodic oiling (see your machine Manual). If the handwheel is frozen, buy a bottle of liquid Tri-Flow Synthentic Oil (from the hardware store) and put one or two drops in all the spots shown in the manual. (DO NOT oil the two white plastic gears or the metal CAMs!!! NEVER use 3-in-1 oil, cooking oil, WD-40, or a generic sewing machine oil from the fabric store. And do not put more than one or two drops of oil at a time as over-oiling will also damage your machine.)

Then, using your hand-held hair dryer, direct hot air into the internal part of the machine (top and bottom). The metal may become very warm to the touch. Then try to gently move the handwheel. Repeat. Even letting it set overnight may help.

Once the handwheel loosens, slowly hand-rotate the handwheel and watch where metal parts move against each other, put a drop of oil in each of those. Be sure to move the selector knobs and oil where metal moves against metal to keep those working.

To maintain your machine, a good recommendation is to oil every time the bobbin thread is changed, every 8 hours of constant sewing, or every six months if the machine is not in use. Use a good quality oil, ie Bernina oil for "mechanical" machines. When oiling, also be sure to brush out the dust and lint (especially around the feed dogs and bobbin works).

If the oil in your tube looks dark colored, throw it out and get some new. I've run across some old sewing machine oil in the can that looked like dark honey and stunk to high heaven. Get rid of it!

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

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How do I repair locked gears on a Singer Sewhandy


There are several causes for this. The most likely--if you have been using and oiling your machine periodically--is you have threads wound around something inside. You can take off the cover to take a look, and generally that would be the back cover first. If you don't find anything, AND you have oiled with SEWING MACHINE OIL ONLY the parts you are supposed to oil, depending on the machine that you have (check your user's manual), you might have a bad bearing, which will require service from a repair facility.

Sep 13, 2014 | Sewing Machines

1 Answer

Bernina 930


How long has it been since you've done a thorough clean and oil? These older mechanical machines are great, however, they do need periodic TLC to keep them running smoothly. You need to open the top, side and free arm. Slowly wiggle the hand wheel and move the selectors/dials, and use either liquid Tri-Flow Synthetic Lube or fresh good quality Bernina oil for CB hook machines. Also, look for the little holes that are oil ports. Stay away from the Basting Stitch mechanism located near the center of the needlebar!!! Do NOT OIL the nylon gears! Don't forget to turn the feed dog dial and oil those moving joints too. If anything is stubborn, a bit of direct heat from a handheld hairdryer will help it loosen.

The following is from a Bernina User Group (a Certified Bernina Technician):
Feel safe putting a drop of oil on any two metal parts that move together. Over oiling will just cause more debris to collect. Excessive oiling will cause failures. Here are some other tips concerning oiling.
Machines with basting mechanisms you just need to stay away from the middle of the needlebar.
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Use clean sewing machine oil free from resins and acids. Inferior oil may cause a machine to jam, due to the oil drying.
If a sewing machine is kept in the cold it should be left to warm an hour or so just to let the viscosity of the oil in the bearings to restore itself.
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Rick CBT

==============
Picture of oiling points for the stitch selector (but this is only one small area that needs lube!) See the metal gear just left of center, it has a little hole. That is an oil port. You will find many of them throughout the machine, but also hitting the moving joints will get those spots you've missed.

bernina oil stitch_selector-j4nfqgbfpki2cke1ptpddd2f-5-0.jpg
Below is a picture of oil spots:
_930 oiling-j4nfqgbfpki2cke1ptpddd2f-5-1.png Treat your machine to some much deserved TLC and she will return the favor ten fold!

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