Adjusting the thread tensioning plate
Service Instructions 869-M PREMIUM - 00.0 - 07/2018 61
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. Loosen stop screws (3) and (5) (ccw).
8. Set the pre-tensioner (6) to a tension force of 20 cN.
Pretensioning must not significantly impair the thread tension.
13.2 Adjusting the tensioning plate
13.2.1 Adjusting the tensioning plate using the Schmidt MST-2000
Fig. 47: Adjusting the tensioning plate (1)
To adjust the tensioning plate:
1. Insert the needle thread as shown above.
(1) - Lock screw
(2) - Stop screw
(3) - Stop screw
(4) - Lock screw
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