Sewing Machine: Machine locks up

Thread bunched up in the shuttle race often causes the sewing machine to lock up. Open the shuttle race and clear the tangled thread. Clean lint and debris from the shuttle race often because lint can also cause the sewing machine to lock up.

These repairs may help solve your Sewing Machine problem:

Clean the sewing machine

Shuttle race

Clean lint and debris from the shuttle race every 3 months because it often attracts lint and dust. Clean the feed dogs at the same time because they also attract lint and dust. Clean those areas more often when using the sewing machine regularly. Oil the sewing machine after cleaning.

For manuals, repair guides, and specific part recommendations, enter your model number.

Adjust the sewing machine needle timing

Needle

If the machine won’t pick up the bobbin thread because the shuttle hook isn’t synched with the needle, adjust the needle timing.. Adjustment of the needle timing usually requires service by a technician. Using special tools, the technician positions the needle and loosens the shuttle drive gear set screws then adjusts the shuttle drive gear to synchronize the shuttle hook with the needle.

For manuals, repair guides, and specific part recommendations, enter your model number.