Adjustment
11
13
.04.06
Needle thread tension release
Rule
1. The tension discs should start to open with the thread lever positioned
10 mm
before
t.d.c.
2. When the thread lever is at t.d.c., there should be a clearance of
1.0 mm
between the
tension discs.
O
Adjust the thread lever to a position
10 mm
before t.d.c.
O
Turn the eccentric
1
(screws
2)
according to
rule
1.
O
Turn the handwheel until the tension discs are at the maximum distance from each
other.
O
Move the thread tension (screw
3)
according to
rule
2.
Fig. 13 - 06
2
1
1.0 mm
3
Summary of Contents for 333-712/02
Page 29: ...Notes...
