Adjustment
13 - 34
13
.07.14
Needle thread tension release
Requirement
1. When the thread trimmer is in the resting position, trip
5
should be engaged and have
a distance of
0.5 mm
to release olive
1
.
2. When trip
5
is positioned at the highest point of release olive
1
, the tension disks of
thread tension should be at least
0.5 mm
apart.
●
Turn release olive
1
(nut
2
) according to
requirement 1
.
●
Allow the presser foot to rest on the needle plate.
●
Pull out the thread between the tension disks.
●
Pull down pull rod
3
(screw
4
) as far as it will go.
●
Position the needle bar at BDC and actuate the engaging lever by hand.
●
Turn the handwheel until trip
5
is positioned at the highest point of release olive
1
.
●
The tension disks must now be at least
0.5 mm
apart.
●
By turning the handwheel, position the rock shaft in the starting position.
●
Trip
5
must now be engaged and needle thread tension fully effective.
●
Lightly grease release olive
1
.
Fig. 13 - 33
24V = 4% ED
4
3
0.5 mm
2
1
5
Содержание 3574-2/02
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