What should I do if my overlocker is jammed?

If your overlocker is jammed, unable to turn the handwheel or continue sewing, the situation can quickly become worrying. Rest assured: in most cases, a jammed overlocker does not mean a serious breakdown. It is usually a temporary mechanical blockage related to the threads, threading, or a needle.

The purpose of this article is to help you understand why your overlocker is jammed, what to do immediately, and how to recognize situations where a professional’s intervention is preferable.

Why is my overlocker jammed?

When the machine jams, it means that something is preventing the normal movement of the internal parts. The causes are generally simple and common.

The most common reasons are:

• thread tangled in the loopers,
• broken or bent needle,
• bunches of thread or fabric caught under the plate,
• incorrect threading,
• thread remnants wrapped around an axle.

Forcing the handwheel in these situations can worsen the jam.

What to do immediately when the overlocker is jammed?

Before any handling, it is essential to act calmly and methodically. An overlocker is a precision machine, and a sudden movement can cause further damage.

The first steps to take are:

• turn off and unplug the machine,
• raise the presser foot,
• gently remove the fabric,
• cut all visible threads,
• try to turn the handwheel by hand, slowly, without forcing.

In many cases, these steps are enough to free the machine.

When should you stop and consult a professional?

If your overlocker remains jammed after these checks, it is strongly advised not to disassemble the machine yourself. Improper handling can misalign the internal mechanics.

It is better to consult our repair workshop if:

• the handwheel no longer turns at all,
• an unusual noise accompanies the jam,
• a needle has broken inside,
• the jam happens regularly.

How to prevent the overlocker from jamming again?

Adopting good habits greatly reduces the risk of jamming.

Some useful habits:

• check the threading before each sewing,
• change needles regularly,
• never pull on the fabric,
• clean the accessible parts of the machine regularly.

In summary

If your overlocker is jammed, the problem is usually related to the threads, threading, or a needle. By acting calmly and without forcing, it is often possible to resolve the situation. In case of doubt or persistent jamming, calling on a professional remains the safest solution to preserve your machine.