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LK3-843.0E
ELECTRONIC LOCKSTITCH BAR TACKER
PRODUCT MANUAL
From the library of: Superior Sewing Machine & Supply LLC
Contents
D 8430E Outline |
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What is the LK3-B430E? |
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8430E position |
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Comparison with mechanical bar |
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tacking machines ···• • ·• ··• • • ····• • • • • ···• • • ········· 2 |
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Comparison with electronic pattern sewers ······• ·3 |
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8430E sales points |
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1. |
Improved flexibility |
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Easy maintenance |
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Improved work efficiency ·····• ·················• 5 |
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Low cost and high performance • • • • ··• • • • ··• • • ·· 5 |
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5. |
Low noise, low power consumption ·····•··••···5 |
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6. |
Improved durability |
·.. • • ·····················• • • •· 5 |
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7. |
Common gauge parts |
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8. |
Others • • • • • ·• • • ·········• • • ······• • • • • • • ·• • • • ··• • • · 5 |
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8430E operation panel |
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Changing sewing speed |
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Changing sewing pattern |
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Enlarging or reducing sewing pattern size • • • • ··• • • ·7 |
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Ill Effective use of 8430E |
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B 8430E specification |
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Machine head |
•·• ··• • ·····• • ·• • • • • ··• • •·• • ···• • ·• • • ··8 |
Specification |
·•············• ··• • • ···• • •·• • ··• • •·• • • ·• 8 |
Program list ·······• ·····• ·•··• • • ··• • • •·• • ·• • • •·• • ··• 9 |
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Gauge parts list according to subclasses • ········• 10 |
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Optional parts |
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Gauge parts |
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Handy switch ····• ···• • • ··• • • ····• ·······• ··• ····• 12 |
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Two-pedal foot switch • ··• • • •··• • • ·• • ··• • •·• • ··• • 12 |
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Associated software ···················• ··• • • ·• ···• • 12 |
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BAS-PC/300 Programming software for |
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electronic pattern sewer ·• • • • ··• ·• ·······•·······12 |
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Shipping condition • • ···• • • ·• • • • • ··• • • ·• • ··• • • • • • ·• • • 12 |
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DIP switch • • • • ·•··• ···········• • ··• • • ··• ·············13 |
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Memory switch ·······················• ··• • • •·• ··• • ·14 |
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Self-diagnosis functions ·• • ·• • • • ··• • • ·• • ··• • •·• ···• ·15 |
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From the library of: Superior Sewing Machine & Supply LLC |
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D B430E Outline
• What is the LK3-8430E?
LK3-8430E is a sewing machine with electronic elements added to a conventionallockstitch bar tacking machine. This machine offers higher efficiency, simpler operation and more functions than the conventionallockstitch bar tacking machine does. Nevertheless, this machine has a reasonable price. This machine has good performance. (See the left graph.) Nine different types of bar tacking patterns and three different types of straight bar tacking patterns have all been pre- Function
programmed.
Decorative bar-tacking patterns can also be sewn in a 3Qx1 0 mm sewing area.
·The conventional clutch mechanism and parts like the feed cam, worm, worm wheel, change gear, and power cam have been eliminated.
·Variable sewing speeds can be changed easily from the operation panel.
•Sewing patterns can also be changed easily from the operation panel.
•Sewing pattern size can be enlarged or reduced from the operation panel.
•Foot switch pedal pressure has been reduced.
Cost
New mechanism
This machine adopts the R-8 feed mechanism. Composition of simple and compact parts has allowed the realization of extremely high speed and a more quiet feed mechanism. As well, this mechanism offers fewer irregular stitches and excellent durability.
* TheE of LK3-B430E has three themes, Electronic, Excellence, and Economy.
From the library of: Superior Sewing Machine & Supply LLC |
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fJ B430E position
• Comparison with mechanical bar tacking machines
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Sewing speed (spm) |
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Sewing area |
Starting and work |
Cycle time (seconds) |
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Number of stitches |
(1 cycle: 42 stitches |
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Machine drive |
Feed mechanism |
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Stitch pitch |
WxL (mm) |
clamp lifter drive |
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and 2,300 spm) |
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Either 42, 35, 28 or 21 |
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1.62 |
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Induction motor |
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B430E |
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(At 2,500 spm, |
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2,500 max. |
12 sewing patterns |
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Electronic lockstitch |
30x10 |
Solenoid |
cycle time is reduced |
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Single V belt |
Pulse motor |
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9 different level speeds |
with above numbers |
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.bar tacker |
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up to 6% compared |
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Motor control |
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are already set. |
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with 8430.) |
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B430NP |
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Either 42, 35, 28 or 21 |
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DC servo motor |
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2,300 max. |
It is necessary to change |
30x1Q |
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Lockstitch bar tacker |
number of stitches by |
Air cylinder |
1.62 |
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Single V belt |
Feed cam |
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7 different level speeds |
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<Clutch-less type> |
replacing feed cam and |
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Motor control |
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change gear. |
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2,300, 2,000, 1,800 |
Either 42, 35, 28 or 21 |
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Clutch motor |
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B430 |
It is necessary to change |
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1.62 |
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It is necessary to |
number of stitches by |
30x10 |
Power cam |
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Two V belts |
Feed cam |
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Lockstitch bar tacker |
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replace motor pulley. |
replacing feed cam and |
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Two-step clutch control |
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change gear. |
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Compared with mechanical bar tacking machines, the B430E features are:
•Improved maximum high speed sewing, and easy variable speed setting
•Simple to change sewing pattern
•Simple pattern size enlargement/reduction by switch operation
•Easy maintenance due to elimination of clutch and parts like worm, worm wheel and change gear
•Lower noise due to no clutch noise
·2-step foot switch making operation and productivity more efficient (2-pedal foot switch is prepared as an optional part.)
•Almost same price as mechanical sewing machines even with the above-mentioned features equipped
B430E offers the following sewing patterns |
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for 8430 series machines: (As of July, 1995) |
Sales schedule for coming models |
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• Bar tacking (Nine |
different |
patterns |
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those in specifications B430-1 to B430-9 |
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have already been set) |
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B430E |
· Straight bar tacking |
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types |
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those in specifications B431-1 to |
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B431-3 have already been set) |
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•Decorative pattern tacking within pattern size 30x10 mm (Consult Brother Sales Officed for details.)
Model |
Application, sewing area |
Scheduled sales release |
B431 E |
Belt loop bar tacking |
'96in spring |
B432E |
Eyelet button hole end bar tacking |
'96in spring |
B438E |
Button sewing |
'96in spring |
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Decorative pattern tacking, 30x30 mm |
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Decorative pattern tacking, 50x50 mm |
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The above specifications may be subject to change without notice for the |
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purpose of continuing product improvement, and consequently the model |
8430 Feed mechanism |
and the sales release date may be adjusted. |
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From the library of: Superior Sewing Machine & Supply LLC |
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• Comparison with electronic pattern sewers |
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Maximum sewing speed |
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Available programs on |
Stitch length |
Feeding length |
Sewing area |
Feeding type |
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(spm) |
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machine |
WxL (mm) |
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8430E |
2,500/4.5 mm (horizontal) |
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Electronic lockstitch |
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Not equipped |
0.1-10.0 mm |
0.1 |
mm/pulse |
30X10 |
R,;-9· int.~rmittent |
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2,500/3.5 mm (vertical) |
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bar tacker |
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BAS-304A |
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Programmable |
2,000/3 mm |
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Equipped |
0.1-12.7 mm |
0.1 |
mm/pulse |
5Qx50 |
X-Y intermittent |
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electronic pattern |
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sewer |
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Feed drive |
Data storage method |
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Number of pieces of |
Scale function |
Work clamp lifter |
Intermittent work clamp |
Two-step work clamp |
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data to be stored |
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height |
(stroke) |
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Pulse motor |
P-ROM |
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12 already set |
50-150% |
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17 mm |
Not equipped |
Not equipped |
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Pulse motor |
3.5 FO |
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10 |
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0-199% |
Solenoid 18mm |
Equipped |
Air type |
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200 |
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Air 20 mm |
(either of 0, 4 or 7 mm) |
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Comparing B430E with BAS series electronic pattern sewers:
B430E is more suitable when
• Main use is bar tacking and pattern size is within 30x1 0 mm.
•High speed sewing is required.
·Low-cost sewing machine is required
BAS series electronic pattern sewers are more suitable when
•Not only bar tacking but also pattern sewing is required.
•Pattern size exceeds 30x 10 mm.
•Additional functions such as programming, intermittent work clamp lifter, and two-step work clamp lifter are required.
BAS-304A Feed mechanism
From the library of: Superior Sewing Machine & Supply LLC |
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