51200E - Sewing machine Union Special - Free user manual and instructions
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| Product Type | Industrial sewing machine |
| Brand | Union Special |
| Model | 51200E |
| Category | Sewing machine |
| Intended Use | Heavy-duty fabric sewing |
| Stitch Type | Lockstitch |
| Maximum Sewing Speed | Up to 5500 stitches per minute |
| Needle System | Industrial needle system 135x17 |
| Presser Foot Lift | Knee-operated presser foot lift |
| Motor Power | 550W |
| Power Supply | 220-240V AC, 50Hz |
| Work Area | Large flat bed |
| Dimensions (Approx.) | 60 x 30 x 50 cm |
| Weight (Approx.) | 40 kg |
| Accessories Included | Needles, bobbins, screwdrivers, oiler |
| Maintenance | Regular oiling and cleaning |
| Safety Features | Needle guard, finger guard, safety clutch |
| Repairability | Replacement parts available from manufacturer |
| Documentation | Free PDF manual downloadable |
Frequently Asked Questions - 51200E Union Special
How do I thread the machine correctly?
Follow the thread path indicated on the machine. Start from the spool, pass through the tension discs, then the take-up lever, and finally the needle. Make sure the thread is seated properly in the tension spring to ensure even stitching.
What type of oil should I use for maintenance?
Use a high-quality sewing machine oil (such as SAE 20 or a brand-recommended lubricant). Apply a few drops to the moving parts, including the hook mechanism and needle bar, after every 8 hours of operation.
How do I adjust the stitch length?
Locate the stitch length dial on the front of the machine. Turn it to increase or decrease the length. A longer stitch is suitable for heavy fabrics, while a shorter stitch works better for fine materials.
Why is the machine skipping stitches?
Common causes include a bent needle, incorrect needle insertion, or improper thread tension. Check the needle timing and ensure the needle is not hitting the throat plate. Replace the needle if it's damaged.
How should I clean the machine?
Disconnect the power and remove the throat plate and bobbin case. Use a soft brush to remove lint and dust from the feed dogs and hook area. Wipe the exterior with a dry cloth and re-oil as recommended.
Is the 51200E suitable for heavy fabrics like leather or canvas?
Yes, the Union Special 51200E is designed for heavy-duty applications. It features a powerful motor and robust construction that can handle thick materials such as canvas, leather, and upholstery fabrics.
How do I replace the needle?
Turn off the machine. Loosen the needle clamp screw and remove the old needle. Insert the new needle with the flat side facing the back, pushing it up as far as it will go. Tighten the screw securely.
What is the maximum sewing speed of this machine?
The Union Special 51200E can sew at up to 5500 stitches per minute. This high speed is suitable for industrial production but should be reduced for intricate or delicate sewing tasks.
Do I need special training to operate this sewing machine?
Basic sewing knowledge is helpful, but the machine is designed for professional users. It is recommended to read the instruction manual carefully and practice on scrap fabric to understand the controls and safety features.
Where can I find spare parts for the 51200E?
Spare parts are available through Union Special authorized dealers and online parts suppliers. Common replacements include needles, bobbins, feed dogs, and belts. Always quote the model number when ordering.
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USER MANUAL 51200E Union Special
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Product information
Brand : Union Special
Model : 51200E
Category : Sewing machine