CONTENTS
page
A
.
HOW TO USE
MANUAL
2
. . . . . . . . . . . . . . . . . .
.
B
TROUBLE AND CHECK POINTS
3
1
.
Skipping stitches
3
2
.
Material not feeding
3
.
Breaking needle
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
4 Heavy running
4
5
.
Machine noise
4
6
.
Needle sewing over the maximum width
4
7
.
Uneaven seems of back and forth at manual
4
8
.
Improper position of needle drop slot at
the max
.
stitch width
5
9
.
Needle swing in straight stitch sewing
5
10
.
Feeding at bar tack sewing of buttonhole
5
.
Not smooth working of pattern selecting dial
.
Imperfect automatic patterns
5
13
.
Uneven seams of reverse patterns
6
14
.
Breaking of upper thread
6
15
.
Breaking of lower thread
6
16
.
How to assemble the parts correctly
7
C
.
HOW TO ADJUST THE ELEMENTS
. . . . . . . . . . . . . . . . . . . . . . . .
1-1
.
Height of presser bar
8
. . . . . . . . . . . . . . . . . . . . . . . .
1-2
.
Height of presser bar
8
. . . . . . . . . . . . . . . . . . . . . . . . .
2
.
Height of needle bar
8
. . . . . . . . . .
.
3-1 Clearance between needle and hook point
. . . . . . . . . .
.
3-2 Clearance between needle and hook point
. . . . . . . . . . . . . . . . . . . . . .
.
Position of shuttle hook
. . . . . . . . . . . . . . . . . . . . . .
.
4-2 Position of shuttle hook
10
. . . .
.
5 1 Clearance between shuttle driver shaft and race way
11
. . . .
.
5 2 Clearance between shuttle driver shaft and race way
. . . . . . . . . . . . . . . . . . .
.
6-1 Position of vertical feed cam
. . . . . . . . . . . . . . . . . . .
6-2
.
Position of vertical feed cam
1
7.1
.
Heightoffeeddog
13
. . . . . . . . . . . . . . . . . . . . . . . . . .
7-2
.
Height of feed dog
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
8 Forth seam
14
. . . . . . . . . . . . . . . . . . . . . . . .
9-1
.
Back and forth seam
14
. . . . . . . . . . . . . . . . . . . . . . . .
9.2
.
Back and forth seam
14
. . . . .
.
10.1
Back and forth seam at automatic reverse patterns
. . . . .
.
10.2
Back and forth seam at automatic reverse patterns
. . . . . . . . . . . . . . . .
.
11 Adjustment of button hole seams
12.1
.
Needle swing in straight stitch sewing
12.2
.
Needle swing in straight stitch sewing
.
Needle swing in straight stitch sewing
.
13.1
Centering of the needle
.
13.2
Centering of the needle
. . . . . . . . . . . . . . . . . . . . . . . .
.
14 Position of feed cam
.
15.1
Setting of maximum stitch width
. . . . . . . . . . . . . . . .
.
15.2
Setting of maximum stitch width
.
Setting of maximum stitch width
.
16.1
Position of the maximum needle swing
.
16.2
Position of the maximum needle swing
.
16.3
Position of the maximum needle swing
.
Contact of upper shaft gear, pattern cam and feed cam
. .
.
Contact of upper shaft gear, pattern cam and feed cam
. .
.
Contact of upper shaft gear, pattern cam and feed cam
. .
.
18.1
Sewing timing of the needle
18.2
.
Sewing timing of the needle
18.3
.
Sewing timing of the needle
.
Clearance between cam finger and pattern cam
19-1 B
.
Clearance between cam finger and feed cam
.
Position of cam finger for pattern cam
20-1 B
.
Position of cam finger for feed cam
21.1
.
Setting of upper thread tension dial
21.2
.
Setting of upper thread tension dial
22
.
Adjustment of feed dog movement at buttonhole sewing
.
23.1
Setting of pattern dial
.
23.2
Setting of pattern dial
.
How to take off stitch width, stitch length dial
and arm panel
.
How to take off stitch width, stitch length dial
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
and arm panel
.
How t o take off stitch width, stitch length dial
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
and arm panel
25.1
.
Adjusting of the drive belts
25.2
.
Adjusting of the drive belts
25.3
.
Adjusting of the drive belts
