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Standard adjustment
Adjustment procedures
Results of improper adjustment
0 mm
❸
Throat plate
❷
❶
1. Turn the power OFF.
2. Discharge air.
3. Remove the needle hole guide.
4. Extrude the bobbin thread heat cutter
unit
❶
as far as it goes. Adjust screw
❸
so that the top end of heat wire is
aligned with and in parallel to the front
edge line of the block
❷
.
5. Turn ON the air supply.
6. Turn ON the power to the sewing ma-
chine.
7. Adjust the sensor position so that the
standby side sensor of the cylinder is
turned ON when the heat cutter rests at
its standby position.
8. Adjust the sensor position so that the
extruded side sensor is turned ON
when the hot wire is extruded the most.
Faulty bobbin thread trimming
can occur.
Standard adjustment
Adjustment procedures
Results of improper adjustment
2. Remove heat wire mounting screw
❺
.
Replace upper heat wire
❻
with a new
one and attach the latter with hot-wire
mounting screw
❺
.
Attach the hot wire while arranging so
that the center of needle thread heat
cutter unit
❸
and the center of upper
heat wire
❻
are aligned.
Be aware that faulty thread trimming
can occur if the heat wire is not properly
arranged.
3. Attach needle thread heat cutter unit
❸
on arm
❶
. If the center of upper heat
wire
❻
is not aligned with the needle,
loosen terminal block mounting screw
❼
and align the center of upper hot wire
with the needle.
Needle
Center line
❺
❻
❼
❻
❸
3. Adjusting the bobbin thread heat cutter unit position
Содержание LK-1942ZA5050
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Страница 34: ... 24 IX ユニット品番 部品名 品番 備考 上熱線装置 40121875 下熱線装置 40121876 ボビンケース装着検知装置 40121877 ...
Страница 35: ... 25 部品名 品番 備考 糸たぐり装置 40121878 下糸無し検知装置 40121880 40122405 制御装置 40122659 目飛び検知装置 ...
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Страница 252: ... 24 IX 组件货号 零件名称 货号 备考 上热线装置 40121875 下热线装置 40121876 梭壳安装检测装置 40121877 ...
Страница 253: ... 25 零件名称 货号 备考 拉线装置 40121878 无底线检测装置 40121880 40122405 控制装置 40122659 跳针检测装置 ...