
Adjustment
13.05.13 Needle-thread tension release
Requirement
With the lifting presser raised, there must be a clearance of at least 0.5 mm between tension discs 4.
2
0.5 mm
1
3
4
Fig. 11 - 13
● Position pressure plate 1 behind mounting bracket 2 according to Requirement.
The clearance of 0.5 mm is a miminum setting and may be as much as 1 mm for heavy threads.
When the tension is engaged, release pin 3 must not be under load.
13 - 15