Adjustments; Thread Tension - ELNA 683, 686 Service Manual

Value on position 4.
Blue
Red
Yellow
Green
Preparation for the thread tension adjustment:
1. Use a 50/2 white polyester thread.
2. The thread is threaded normally from the bobbinholder to the pre-tension and tension.
3. Lower the pressure bar

THREAD TENSION

30-34 g
14-16 g
11-13 g
30-34 g
A
B
To check the tension, use our tension spring-
balance (101670).
How to adjust:
1. Turn the tension dials so that the number
4 is in line with the mark C.
2. Verify the thread tension.
Adjustment:
Insert a pencil in to the hole E and push the
regulate blocking pin to the left, outside
from the ring D.
1. If the tension is too weak, hold the tension
ring D in position and turn the tension dial in
direction B.
2. If the tension is too strong, hold the tension
ring D in position and turn the tension dial in
direction A.
3. Recheck the tension and if needed repeat the
adjustment.
5