Introduction
This manual provides instructions for the installation, operation, and maintenance of the ckpsms Bobbin Case, part number 421326. This bobbin case is designed as a replacement part for various Singer drop-in type sewing machines. Please read these instructions carefully before use to ensure proper function and longevity of the product.
Setup and Installation
Before installing the new bobbin case, ensure your sewing machine is turned off and unplugged for safety. Refer to your sewing machine's original manual for specific instructions on accessing the bobbin area.
Image of the ckpsms Bobbin Case, part number 421326, showing its overall shape and design.
- Open the bobbin cover plate on your sewing machine. This is typically located on the needle plate or in front of the needle area.
- Carefully remove the old bobbin case, if present.
- Inspect the area for any lint, dust, or broken thread. Clean thoroughly with a small brush or lint-free cloth.
- Insert the new ckpsms Bobbin Case #421326 into the bobbin compartment. Ensure it sits securely and correctly in its designated slot.
Operating Instructions
Proper loading of the bobbin into the bobbin case and correct placement of the bobbin case into the machine are crucial for smooth operation.
A closer view of the ckpsms Bobbin Case, highlighting the tension spring and thread path.
- Insert a properly wound bobbin into the bobbin case. Ensure the thread unwinds in the correct direction (usually counter-clockwise when viewed from the top, but always verify with your machine's manual).
- Guide the bobbin thread through the tension spring slot on the bobbin case. The thread should slide smoothly under the spring with a slight, consistent resistance.
- With the bobbin and thread correctly loaded, place the bobbin case into the bobbin compartment of your sewing machine. Ensure it is fully seated and aligned.
- Close the bobbin cover plate.
Maintenance
Regular maintenance of your bobbin case helps ensure consistent stitch quality and extends the life of your sewing machine.
- Cleaning: Periodically remove the bobbin case and clean it with a soft brush to remove lint and thread residue. Pay particular attention to the tension spring area, as debris here can affect thread tension.
- Inspection: Regularly check the bobbin case for any signs of wear, such as nicks, burrs, or damage to the tension spring. A damaged bobbin case can cause thread breakage, skipped stitches, or poor stitch formation. Replace the bobbin case if any damage is observed.
- Lubrication: The bobbin case itself typically does not require lubrication. Refer to your sewing machine's manual for specific lubrication points within the bobbin area of the machine.
Troubleshooting
If you encounter issues related to the bobbin area, consider the following common problems and solutions:
- Thread Jamming or Nesting:
- Ensure the bobbin is wound evenly and not overfilled.
- Verify the bobbin is inserted correctly into the bobbin case, and the thread is properly routed through the tension spring.
- Check for any lint or debris in the bobbin case or bobbin compartment.
- Skipped Stitches:
- Confirm the bobbin case is seated correctly and securely in the machine.
- Ensure the needle is inserted correctly, is not bent, and is not dull.
- Uneven Stitch Tension:
- Check the bobbin thread tension. The thread should pull smoothly from the bobbin case with slight, consistent resistance. If it's too loose or too tight, the bobbin case might be faulty or require adjustment (if your specific bobbin case model allows for tension adjustment).
- Ensure the upper thread is correctly threaded through all guides and tension discs of your sewing machine.
Specifications
Product Details:
- Part Number: 421326 (Alternative reference numbers: 421326-901, 421325-000, 421325, 421325-001, 421325003, 421325-002, 421325001, 421325-001)
- Part Name: Bobbin Case
- Material: Plastic
- Quantity: 1 piece
- Color: Black
- Brand: ckpsms
- Manufacturer: CKPSMS
- Country of Origin: China
Compatibility:
This bobbin case is compatible with a wide range of Singer drop-in type sewing machine models, including but not limited to: 247AP, 288, 353, 354, 413K13, 502, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533, 534, 538, 560, 714, 717 School, 719, 724, 734, 774, 776, 830, 834, 844, 935U, 1022, 1247, 1263, 1280, 1288, 1802, 1803, 1812, 1852, 1853, 1862, 1872, 1873, 2210, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2440, 2502, 2503, 2504, 2515, 2530, 2732, 2950, 3101, 3102, 3103, 3105, 3314, 3317, 3343, 4325, 4517, 4522, 4525, 4526, 4528, 4530, 4538, 4552, 4562, 4572, 4610, 4620, 4622, 4624, 4814, 4817, 4818, 4820, 4822, 4824, 4825, 4826, 4828, 4830, 4832, 495, 500K, 5017, 502, 5028, 5040, 5050, 507, 509, 510, 513, 514, 5160, 518, 522, 527, 530, 533, 534, 538, 5405, 5417, 543, 5430, 560, 5605, 5610, 5705, 5710, 57815, 57815C, 57817, 57820, 57820C, 57825, 5802, 5805, 5806, 5808, 5810, 5812, 5814, 5816, 5817, 5818, 5820, 5825, 5830, 5830C, 5838, 5910, 5932, 6011, 6012, 6021, 6038, 6100, 6102, 6104, 6105, 6106, 6110, 6112, 6114, 6115, 6116, 6120, 6122, 6124, 6125, 6130, 6136, 6146, 6152, 6156, 6174, 6180, 6184, 6201, 6202, 6211, 6212, 6214, 6215, 6217, 6221, 6233, 6500, 6513, 6522, 6528, 6533, 6543, 6544, 6548, 6606, 6610, 6620, 6700 Series, 6705, 7004, 7015, 7021, 7025, 7028, 7029, 7033, 7035, 7100, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 714, 717School, 7174, 7184, 719, 7211, 7212, 724, 734, 774, 776, 800, 8002, 8007, 8019, 8100, 8200, 8220, 827, 830, 833, 834, 844, 8500, 8502, 8505, 8518, 8600, 8602, 8605, 8606, 8610, 8614, 8618, 8734, 8774, 9005, 9008, 9010, 9015, 9018, 9020, 9022, 9027, 9030, 9032, 9034, 9044, 9110, 9130, 9134, 9210, 93220, 9323, 93234, 9334, 935U, 9408, 9410, 9416, 9420, 9423, 9430, 9432, 9440, 9444, 9500, 9502, 9505, 9518, 9600, 9602, 9605, 9606, 9608, 9610, 9612, 9614, 9618, 964, 966, 968, 972, 974, 9802, 9803, 9805, 9806, 9808, 9810, 9812, 9814, 9816, 9818, 9824, 9828, 9836, 9858, 9936, CG500, CG550, CG590, CM17, CP17, DL17, DX14C, FM17, FM19, FM22, HD102, HD105, HD110. For a comprehensive list of compatible models, please refer to the product listing or contact ckpsms customer support.
Warranty
Warranty information for this product should be obtained directly from the seller or manufacturer at the time of purchase. Please retain your proof of purchase for any warranty claims.
Support
For technical assistance or further inquiries regarding the ckpsms Bobbin Case #421326, please contact the seller or ckpsms customer support through their official channels.
Important Note on Authenticity
Image showing the ckpsms Bobbin Case inside its clear plastic packaging with the 'ckpsms' brand logo printed on it. This packaging indicates an authentic product.
If the item you receive is not in ckpsms branded packaging, as shown in the photo above, it indicates that you may have received a counterfeit product. Please ensure you purchase from authorized sellers to guarantee product authenticity and quality.