Adjusting The Tensioning Plate Using A Mechanical Thread Scale - DURKOPP ADLER 869-M Premium Service Instructions Manual

Adjusting the thread tensioning plate
13.2.2 Adjusting the tensioning plate using a mechanical thread
Fig. 49: Adjusting the tensioning plate (1)
(1) - Lock screw
(2) - Stop screw
To adjust the tensioning plate:
1. Insert the needle thread as shown above.
2. Feed the needle thread through the thread lever and the thread scale.
3. Pull the thread to the left at a consistent rate of speed.
Important
The thread must be pulled off horizontally.
4. Screw in the stop screw (2) (cw) until the tension increases, peaks and
5. When the tension drops while you are screwing in (cw) the stop screw (2),
6. Secure the stop screw (2) using the lock screw (1).
Important
To prevent it from turning while it is being secured, use a 10 mm wrench
to hold the stop screw (2) in place.
7. Check the thread tension and readjust it if necessary.
8. Screw in the stop screw (3) (cw) until the tension increases, peaks and
9. When the tension drops while you are screwing in (cw) the stop screw (3),
10. Secure the stop screw (3) using the lock screw (4).
Service Instructions 869-M PREMIUM - 00.0 - 07/2018
scale
①
②
decreases again.
set the tension to 450±10 cN.
decreases again.
set the tension to 720±50 cN.
③
(3) - Stop screw
(4) - Lock screw
④
63