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Here are some common problems and things the operator can
check before sending a machine to the technician. These
may seem simplistic, but check and re-check them it should
save you money.
To oil or not to oil, that is the question.
NO - Yes- Maybe. Oil will not solve stitching problems.
In most cases it is far worse for your equipment to over
oil than under oil. Indications a machine needs lubrication
are squeaks and squeals, grinding, thumping, sluggishness
and so forth. If you believe your machine requires lubrication
one or two drops is all that is necessary in any one place.
The most common place to oil any machine is the hook or
shuttle, this area should have one drop of oil every 8-10
hours of machine run time. For a lifetime of service have
your machine serviced professionally every one or two years,
depending on usage.
Perhaps the two most overlooked parts and without question
the two most important parts of any sewing machine are the
needle and thread.
Thread: Always use a good quality thread. Those
5 for a dollar spools are no bargain. For the best results
on regular sewing machines use cotton covered polyester
thread. These combine strength and a nice appearance for
topstitching.
For surging or overlocking use a 100 polyester thread in
most cases. It's strong and works well for this type of
work.
Avoid old thread. Yes thread gets weak with age. I can't
tell you how many calls I have for a machine breaking thread
and when I get there the thread is on a wooden spool. Thread
on these spools is at least 40 years old.
Whenever you experience thread breakage try a couple different
spools of thread and see if the problem goes away. Many
times it will. Even the best threads have bad runs so always
suspect the thread first.
Needles: Dull, bent, wrong size or old needles can
create all kinds of problems. Click
here to see why you should change your needle often.
If your machine all of a sudden starts skipping, or breaking
thread or experiencing any kind of stitching problem, change
the needle. Be sure to use the correct needle for your machine
and use the correct size for the thread and materials being
sewn. A needle too large or too small can cause skipped
stitches and or broken thread.
Make sure the new needle inserted all the way and is facing
the correct way. In most cases, the flat side of the needle
faces away from where you insert your bobbin. If the bobbin
goes in from the front, then flat side of the needle goes
to the rear (away from the operator). There are exceptions
to this rule - most notably the Singer models 15-91, 201,
221, and 301. These machines do just the opposite. The flat
side of the needle faces the bobbin. If you are in doubt,
consult your users manual.
Tension adjustments:
This may be the biggest mystery in the sewing industry.
It doesn't need to be. First, an untrained person should
never adjust the bobbin tension. This is a very fine and
usually tricky adjustment, one best left to the professionals.
The good news is once it is set properly it rarely goes
out of adjustment by its self.
The upper thread tension is user adjustable, but it usually
does not require frequent adjustment. Most of the newer
machines have numbers (0-9) on them. The factory setting
is usually about # 4. Some have a red dot or some other
type of indicator of the preset tension. Always use this
setting unless you are doing some sort of special application
that requires a different setting - i.e. buttonholes, basting,
or any other special operation.
If you are having what you believe to be tension problems,
it is often useful to use two different color threads. That
way, you can see which one is really giving you the trouble.
Just because you see a problem under the fabric does not
mean it's a bobbin problem. Usually it's not.
We welcome your tips and techniques suggestions. If you
have any that you think would be helpful, please submit
it here We will post them on this page.
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