Chapter 5 Adjustment
BAS-6150
58
1. Timing adjustment of needle and rotary hook
Lift amount of needle bar
Loosen screw
w
and rotate rotary hook
q
so
that rotary hook blade top
q
is in alignment
with the center of the needle when the needle
goes up by 2.4 mm (standard) (to be measured
by a gauge) from the lowest position.
Height of the needle bar
Loosen set screw
e
and let the needle up and
down so that the clearance between top edge
of rotary hook and that of needle hole be 1 ~
1.5mm.
q
Needle
1-1.5mm
2.4mm(Standard)
w
e
1492S
1491S
1490S
1588S
1589S
2.4
2.8 3.5
2.4
2.8 3.5
2.4
2.8 3.5
2.4
2.8 3.5
r
Gauge
Gauge
Change of the lift amount of needle bar
The lift amount of needle bar is required to change when sewing materials that are uneasy to make a
needle hole loop are used.
1.
Rotate the pulley to move the needle to the
lowest position.
2.
Align the bottom face of needle clamp
r
with the gauge.
If aligned to the larger number, the less occurs the stitch skip.
(standard: 2.4 mm) Excessive increase of lift amount causes
the loose tension of the thread and the frequent stitch skip.
3.
Adjust the timing between the needle and
rotary hook written above.
Summary of Contents for BAS-6150
Page 2: ......
Page 11: ...Chapter 1 Machine Preparation ...
Page 29: ...Chapter 2 Sewing flow ...
Page 41: ...Chapter 3 Settings ...
Page 55: ...Chapter 4 Oiling ...
Page 59: ...Chapter 5 Adjustment For raising the head refer to 3 How to raisethehead in Chapter4 Oiling ...
Page 70: ...Chapter 5 Adjustment BAS 6150 68 ...
Page 71: ...Chapter 6 Knife replacement ...
Page 77: ...Chapter 7 Environment setting ...
Page 85: ...Chapter 7 Environment setting BAS 6150 83 Standard stacker 4 steps 0 1 3 4 2 1530S ...
Page 95: ...Chapter 8 Dipswitch ...
Page 98: ...Chapter 8 Dipswitch BAS 6150 96 ...
Page 99: ...Chapter 9 Error code List ...
Page 103: ...Chapter 10 Troubleshooting ...