Open the latch of the bobbin case and push it firmly onto the center pin of the shuttle race until it clicks into place. The long finger of the case must fit into the notch at the top of the race. Threading the Upper Machine
often utilizes a front-loading bobbin case. Ensure the thread feeds in the correct direction (usually counter-clockwise) and passes through the tension spring on the case. 3. Key Operating Features The manual details how to master the following functions:
Bring the thread down and pull it up between the tension discs from right to left. Hook the thread under the check spring and pull it upward. victoria 537 manual
Turn off the power switch (if integrated) or unplug the machine foot pedal.
Located on the front left panel, consisting of metal discs and a numeric dial to regulate upper thread tension. Open the latch of the bobbin case and
Run the machine without thread on a scrap piece of fabric to absorb any excess oil. 6. Troubleshooting Common Issues Probable Cause Upper thread skipped the tension discs. Rethread the upper machine with the presser foot raised. Needle breaks repeatedly Needle is bent, inserted backward, or hitting the plate. Insert a new needle with the flat side facing the back. Skipped stitches Blunt needle or incorrect needle type for the fabric.
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Tighten the needle clamp screw securely using a small screwdriver. Winding the Bobbin Place a spool of thread on the spool pin.
Pass the thread through the bobbin winding tension guide on the top cover. Ensure the thread feeds in the correct direction
Hold the needle with the (toward the back of the machine). Push the needle up into the clamp as far as it will go.
Pull both threads toward the back of the machine, underneath the presser foot. Operating the Machine Basic Straight Stitching