Needle Thread Tension Release - Pfaff 335 Adjustment Manual

13

Needle thread tension release

.05.10
Requirement
When the tip of release lever 5 is at the highest point of release cam 4 the tension discs must
be at least 0.5 mm apart.
Fig. 13 - 24
Lower the lifting presser onto the needle plate.
●
Set the needle bar at b.d.c. and operate solenoid core 1.
●
Turn the balance wheel (sewing direction) until the thread catcher is in its front position.
●
Adjust linkage rod 2 (screws 3) according to Requirement.
●
Turn the balance wheel to end the trimming action and set the take-up lever at t.d.c.
●
Check that the thread tension is fully active.
●
Finally, lightly grease the surfaces of release cam 4 and the tip of release lever 5.
●
5
3
4
2
Adjustment
1
29