Table of Contents General information ..............3 Adjusting the thread tensioning plate ........4 Setting the machine ..............4 Adjusting the tensioning plate............5 2.2.1 Adjusting the tensioning plate using the Schmidt MST-2000 ..5 2.2.2 Adjusting the tensioning plate using a mechanical thread scale ..7 Checking the adjusted thread tension ..........
General information General information These additional instructions describe how to set up the thread tensioning plate for the following classes: Class Subclass • 667-180912 • 667-180932 • 669-180912 • 867-190922-M • 867-190929-M • 867-190942-M • 867-190945-M • 867-290942-M • 867-290945-M •...
Adjusting the thread tensioning plate Adjusting the thread tensioning plate Preparing the adjustment using the Schmidt MST-2000 Use screw clamps to attach a plain sheet of metal (e.g. 6 mm aluminum) to the tabletop on the left-hand side of the machine. Set up the thread scale with its suction cup base on the metal plate in such a way that the sewing thread - coming from the thread lever - lines up with thread guides both horizontally and vertically.
Adjusting the thread tensioning plate 3. Set thread tension level 2 (50%). 4. Lock the machine in place at position 1 (handwheel position 0°). 5. Remove the thread tension spring from the operating range (cw). 6. Loosen lock screws (1) and (4). 7.
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Adjusting the thread tensioning plate Fig. 3: Adjusting the tensioning plate (2) ⑨ ⑤ ⑥ ⑦ ⑧ (5) - Winder (8) - POWER (6) - Motor ON/OFF (9) - Thread lever (7) - Display 2. Feed the needle thread through the thread lever (9) and the thread guides of the thread scale and clamp it at the winder (5).
Adjusting the thread tensioning plate 2.2.2 Adjusting the tensioning plate using a mechanical thread scale Fig. 4: Adjusting the tensioning plate (1) ① ② ③ ④ (1) - Lock screw (3) - Stop screw (2) - Stop screw (4) - Lock screw To adjust the tensioning plate: 1.
Adjusting the thread tensioning plate Important To prevent it from turning while it is being secured, use a 10 mm wrench to hold the stop screw (3) in place. 11. Check the thread tension and readjust it if necessary. 2.3 Checking the adjusted thread tension 2.3.1 Checking the adjusted thread tension using the Schmidt MST-2000 Fig.
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Adjusting the thread tensioning plate Fig. 6: Checking the adjusted thread tension (2) ⑤ ① ② ③ ④ (1) - Winder (4) - POWER (2) - Motor ON/OFF (5) - Thread lever (3) - Display 2. Feed the needle thread through the thread lever (5) and the thread guides of the thread scale and clamp it at the winder (1).
Adjusting the thread tensioning plate 2.3.2 Checking the adjusted thread tension using a mechanical thread scale Fig. 7: Checking the adjusted thread tension (1) To check the adjusted thread tension: 1. Insert the needle thread as shown above. 2. Feed the needle thread through the thread lever and the thread scale. 3.
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Adjusting the thread tensioning plate 10. Set the thread tension spring back to sewing operation (ccw, Service Instructions, chapter Setting the thread tension spring). 11. Insert the needle thread. 12. Finish the service routine. The machine is ready for sewing. Additional Instructions M-Type PREMIUM - 00.0 - 04/2018...