9.03.19
Roller presser
,:
, 。
,( )。
,(
)。
1 5
51.
2. 9620
3. 9620
Requirement
1 5
5
When the roller presser is touching the feed wheel it must:
1. be parallel to feed wheel , as seen in the direction of sewing.
2. be in the centre of the needle (on model 9620 the left needle), as seen
in the direnction of sewing.
3. be as near as possible to the needle (on model 9620 the left needle),
as seen crosswise to the direction of sewing.
● 。
● 。
●
( )。
● , 。
● ( )。
●
●
●
●
●
1
2 1 2
1 5
3 3 4
Requirement 1
1 2 Requirement 2
1 5
3 4 Requirement 3
Raise the roller presser.
Always observe for subsequent adjustments.
Adjust roller presser (screw ) according to .
Lower roller presser to rest on feed wheel .
Adjust roller presser bracket (screw ) according to .
,
。
When sewing very tight
curves, the roller presser 1
must be moved a little
towards the operator.
9-23
Adjustment
9.04.05
Knife position and knife pressure
。
,。
1.
2.
1
Requirement
11. the knife should be touching the needle plate.
2. the knife pressure should be set as low as possible but the
cutting operation should still be carried out reliably.
● ( ),2
。
●
1 1 2 1
1 2 Requirement 1
Requirement 2
Move knife (screw ) in accordance with or swivel it
in accordance with .
9-40
Adjustment
9.03.20
Stitch length on stitch length scale
“ ”, ,
。
3 11
30 mm
Requirement
11 times
30 mm
When the stitch length is set at 3 , and after the needle
has entered a strip of leather , the total length from
the first to last needle penetration must be .
“ ”
。1
1
Clamp must not be positioned diagonally to the rock shaft!
● “ ”。
● ,11。
● ( )。
● “ ”
●
●
3
1 2
11 times
1 2 Requirement
Set stitch length 3 .
By turning the balance wheel, let the needle enter and
measure the total length.
Adjust clamp (screw ) according to the .
9-24
Adjustment
9.04.04
Position of the thread catcher
9.04.04
Position of the thread catcher
。
,
。
1.
2.
1 5 0.1 mm
2.5~ 3 mm
。
,
。
1.
2.
1 5 0.1 mm
2.5~ 3 mm
Requirement
1
0.1 mm 5
2.5 3 mm
1. the bottom edge of the thread catcher should be at a distance
of from the positioning finger of the bobbin case .
2. when the thread trimmer is in its neautral position, the rear edge
of thread cather should be positioned approx. behind
the edge of the knife.
Requirement
1
0.1 mm 5
2.5 3 mm
1. the bottom edge of the thread catcher should be at a distance
of from the positioning finger of the bobbin case .
2. when the thread trimmer is in its neautral position, the rear edge
of thread cather should be positioned approx. behind
the edge of the knife.
● ( ,)。
● 1( )。
●
●
112
23
12
Requirement 1
1 3 Requirement 2.
Move thread catcher (screw , two screws) in accordance with
.
Turn thread cather (screw ) in accordance with
● ( ,)。
●
1( )。
●
●
1 1 2
2 3
1 2
Requirement 1
1 3 Requirement 2.
Move thread catcher (screw , two screws) in accordance with
.
Turn thread cather (screw ) in accordance with
。14
1
4
Thread catcher must be parallel to the surface of the thread catcher
holder .
。1 4
1
4
Thread catcher must be parallel to the surface of the thread catcher
holder .
9-39
Adjustment
Adjustment
19 0* 260 6 15
Zj 96 10、9620、9625、9630
08 .0 4.2