HIGHLEAD DY-850 User manual

Integrated Direct Drive Top And Bottom Feed
Lockstitch Sewing Machine With Long
Stitch Length And Electronic Control
Instruction Manual
Parts Catalog
SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO., LTD.
上下复合送料平缝机
DY-850
直驱式一体控制自动剪线
使用说明书
零件样本
上 海 标 准 海 菱 缝 制 机 械 有 限 公 司

-----目录 CONTENTS -----
一、使用说明 INSTRUCTION MANUAL
1.注意事项 PRECAUTIONS BEFORE STARTING OPERATION······················································ 1
2. 技术规格 SPECIFICATIONS ················································································································ 2
3.操作准备和润滑 PREPARATION AND LUBRICATION··································································· 2
4.调整针杆停针位置 PREPARETION BEFORE START TO OPERATE············································ 4
5.机针安装 HOW TO ATTACH NEEDLE······························································································· 5
6.穿线 THREADING································································································································· 5
7.针距、倒顺送料 SET STITCH LENGTH AND REVERSE FEEDING············································ 6
8.压紧杆高度定位 POSITION PRESSER BAR······················································································ 6
9.压脚压力调节 ADJUST THE PRESSURE OF PRESSER FOOT ···················································· 7
10.挑线簧调节 ADJUST THREAD TAKE-UP SPRING ·········································································· 7
11.底面线张力调节 ADJUST THREAD GUIDE AND THREAD TENSION ········································ 8
12.机针与旋梭同步调节 TIME NEEDLE TO ROTAING HOOK ························································10
13.旋梭装卸 REPLACE ROTATING HOOK···························································································11
14.梭心线的绕法 HOWTO WIND THE LOWER THREAD ON THE BOBBIN······························· 12
15.松线器挺线调节 ADJUST OPENING TIME OF THE TENSION DISCS ······································ 13
16.送布牙的调整 ADJUST THE HEIGHT OF FEED DOG·································································· 13
17.调整送布牙倾角 ADJUSTMENT OF FEED DOG INCLINATION ················································ 14
18.送布牙与机针同步调节 TIME FEED MOTION TO NEEDLE MOTION······································ 14
19.剪线装置的调整 ADJUSTMENT OF THREAD TRIMMER MECHANISM·································15
20.定期清扫 PERIODICAL CLEANING································································································ 17
二、零件样本 PARTS CATALOG
A)机壳部件 ARM BED AND IT'S ACCESSORIES ·············································································· 18
B) 针杆、上轴部件 NEEDLE BAR &ARM SHAFT MECHANISM··················································· 21
C) 针距调节部件 STITCH REGULATOR MECHANISM···································································· 24
D) 送料、抬牙部件 FEEDINGAND FEED LIFTING MECHANISM················································· 26
E) 压脚部件 PRESSER FOOT MECHANISM······················································································· 28
F) 压脚提升、摆动部件 PRESSER LIFTING & FEEDING MECHANISM ······································ 30
G) 润滑部件 OIL LUBRICATION MECHANISM················································································· 33
H) 剪线部件 THREAD TRIMMER MECHANISM··············································································· 35
I) 倒缝、上轮部件 TOUCH BACK MECHANISM & MOTOR MECHANISM······························· 38
J) 气动抬压脚(特殊订货) PNEUMATIC PRESSER FOOT（SPECIAL ORDER)··························· 40
K) 附件 ACCESSORIES···························································································································· 42

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1. 注意事项 PRECAUTIONS BEFORE STARTING OPERATION
1) 安全须知 Safety precautions
(1) 打开电源后，切勿将手放在机针下和上轮附近。
(2) 机器停止使用或操作者离开时，将电源关掉。
(3) 当倾斜机头或重新调试安装机器时，必须切断电源。
(4) 机器运转时避免手指、头发、棒状物等靠近绕线轮，以免受伤。
(5) 机器运转时，不要将手指放在挑线杆防护罩内以及机针、上轮附近。
(6) 如果安装了压脚防护罩、透明有机玻璃罩，当在这些防护装置不完善时不要开机。
(1) When turning the power on, keep your hands and fingers away from the area around/under the needle
and the area around the pulley.
(2) Power must be turned off when the machine is not used.
(3) The power must be turned off before tilting the machine head, installing or adjusting the machine, or
when replacing.
(4) Avoid placing fingers, hairs bars etc. nears the pulley, bobbin winder pulley, when the machine is
operation. Injury could result.
(5) Do not insert fingers into the thread take-up cover, under/round the needle, or pulley when the machine
is in operation.
(6) If a mini motor cover, finger guard, and/or eye guard are installed, do not operate the machine without
these safety devices.
2) 开机须知 Precaution before Starting Operation
(1) 开机前，先将储油盒内的油加足。
(2) 若机器是通过油壶加油润滑，操作前须加油充分润滑。
(3) 启动新机器时，须先接通电源，检查上轮的旋转方向。
(观测者面对上轮，上轮应为逆时针方向旋转)
(1) If the machine's oil pan has an oil sump, never operate the machine before filling it.
(2) If the machine is lubricated by a drop oiler , never operate the machine before lubricating.
(3) When a new sewing machine is first turned on, verify the rotational direction of the pulley with the
power on. (The pulley should rotate counterclockwise when viewed from the pulley.)
3) 操作条件 Precaution for Operating Conditions
(1) 不要在高于 35℃或低于 5℃时使用，否则会造成机器损坏。
(2) 避免在肮脏的环境中使用机器。
(1) Avoid using the machine at abnormally high temperature (35℃or higher) or low temperatures
(5℃or lower). Otherwise, machine failure may result.
(2) Avoid using the machine in dusty conditions.

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2. 技术规格 SPECIFICATIONS
型号 Model DY-850
最高转速 Max. speed 2000r.p.m （针距 Stitch length ≥10mm ：1800r.p.m）
针距 Stitch length 0 －12mm
针杆行程 Needle bar stroke 38mm
压脚提升高度
Presser foot lift
手动 Hand 6 mm
膝控 Knee 13 mm
机针 Needle type DP×17 #18~#22
旋梭 Rotating hook 自动润滑大旋梭 Auto lubricated large hook for trimmer
润滑方式 Lubrication 自动润滑 Auto lubricated
操作空间 Operating space 330×130mm
电动机 Motor 220 伏750 瓦伺服电机 220V750W Servo motor
3. 操作准备和润滑 PREPARATION AND LUBRICATION
1) 擦拭机器 Cleaning the machine
机头装箱前为了防止机件生锈，各部分均涂有较厚的防锈油脂，同时机头装箱后，还可能在较
长的贮藏和长途运输阶段造成油脂硬化和积聚在机器表面的灰尘，所以必须将表面的油脂和灰尘用
汽油和洁净的软布擦拭干净。
Before leaving the factory, the machine parts are coated with rust-preventive grease, which may be
hardened and contaminated by dust during storage and shipment. This grease must be removed with gasoline.
2) 检查 Examination
机器出厂时，虽经过周密的检查和试验，但在长途运输中也可能受到强烈的振动使机件松动或歪曲，
所以应该作一次周密的检查，并用手转动主动轮，看机件之间有无转动困难，碰撞现象或其它不均匀的
阻力，不正常的声响，如有应作适当的调整，机器情况正常后才可正式试车。
Though every machine is confirmed by strict inspection and test before leaving the factory, the machine
parts may be loose or deformed after long distance transportation with jolt. A thorough examination must be
performed after cleaning the machine. Turn the balance wheel to see if there is running obstruction, parts
collision, uneven resistance or abnormal noise. If these exist, adjustment must be made accordingly before
run-in operation.

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3）润滑 Oiling
（1）油量
油量必须按油盘内标记加注。图中标记 A 是油量最高位，B 是油量最低位。注意油量不得低于标记
B，否则缝纫机各部位就会出现进油停止，造成发热咬死情况。
（2）加油
必须用特 18#高速缝纫机油，运转前油量加至标记 A。
（3）换油
旋下放油螺钉 C，排净废油。清扫油盘污尘，旋
紧放油螺钉 C，加注新油。
(1) Amount of oil
Required amount of oil. Line (A) on the oil
reservoir: Max. oil level. Line (B) on the oil reservoir:
Min. oil level. If oil level goes down under line (B),
oil cannot be distributed to each part of the machine,
thus causing the parts a seizure.
(2) Replenishing
Always use only No.18 special machine oil for high speed sewing. Be sure to replenish oil to Line (A)
before starting operation.
(3) Replacing oil
To replace oil, remove Screw (C) to drain oil. After completely draining off oil, clean the oil reservoir and
securely tighten Screw (C), then fill the reservoir with fresh oil.
4）试车 Run-in operation
新机器在开始使用和长期搁置重新使用时，先卸下机头上部的橡皮塞 A，充分加油，然后抬起压脚 B
进行低速运转 1000-1500 针/分，并观察油窗 C 的
喷油情况，润滑正常后，仍须保持低速 30 分钟运
转试验，以后逐渐提高缝纫速度。经过一个月左右
的使用，使机器充分跑合。然后根据工作的性质再
提高到最高转速。
Run-in operation is required for a new sewing
machine, or a sewing machine left out operation for a
considerable length of time. Remove Rubber Plugs
(A) on the top of the arm and replenish sufficient
amount of oil. Lift Presser Foot (B). Run the machine

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at a low speed (1000-1500spm) to check oil distributing condition through Oil Check Window (C). Perform
run-in operation at 1000-1500spm for 30minutes. After a lapse of one month of service during which the
working speed is increased gradually and the machine runs sufficiently well, the high speed 2000spm can
be adopted according to the nature of the work.
5) 调整旋梭供油量 Adjusting the lubrication of rotating hook
旋梭的油量，可以用油量调节螺钉 A 加以调节。顺时针方向（“+”号方向）转动油量调节螺钉 A，
油量增多；逆时针方向（“-”号方向）转动油量调节螺钉，则油量减少，油量调节螺钉 A 在回转 5 圈范
围内调节油量，拧向紧固位置时，油量最多，拧松转 5 圈时，油量最少。
The lubrication of the rotating hook can be
adjusted by Oil Adjusting Screw (A) as follows:
Turn Oil Adjusting Screw (A) clockwise (+) to
increase oil and turn Oil Adjusting Screw (A)
counterclockwise (-) to decrease oil. Oil Adjusting
Screw (A) adjusts oil amount within 5 turns.
When Oil Adjusting Screw (A) is fully tightened,
oil amount is maxi mum. Readjustment depends
on temperature, sewing speed and the like. In
practice, oil amount can be judged as follows:
remove the throat plate and place a piece of paper on instead, run the machine for about 20 seconds, then check
the oil splashed on the paper.
4. 调整针杆停针位置 PREPARETION BEFORE START TO OPERATE
调整上针位 Adjustment of needle bar stop position Adjust of "UP" position
踩下脚踏板，查看机器是否停在上停针位，如
果标记 A偏转超过 3mm，则按附件：AHE-58/59
数控交流伺服系统 HMI-12 使用说明书，第 8
页—4.1 上停针位调整，所示步骤进行调整。
When the pedal is kicked down by heel, the
machine stops at "UP" position. If the marks
deviate larger than 3mm adjust as follows.
Enclosure: AHE-58/59 AC Servo System HMI-12
User Manual, No.8—4.1 The adjustment of up
needle stop position, to adjust as the items.

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5.机针安装 HOW TO ATTACH NEEDLE
注意:安装前必须关闭电源
旋松夹针螺钉，将机针的长槽朝向操作者的左面，然后把针柄插入针杆下部的针孔内，使其碰到针杆孔
的底部为止，再旋紧夹针螺钉，固定机针即可。
注意: 倒缝时如发生断线现象，注意机针与线的配
合，并且使机针的长槽面向操作者转动一定角度。
Note: Before making the following adjustment, be
sure to switch off the power source.
Insert the needle up to the bottom of needle clamp and
tighten the screw keeping the long groove side of needle
forward the left．
Note: If snapping of thread occurs during back sewing
with polyester threads，it may be avoided by fitting the needle with the long groove shifted to the front side．
6. 穿线 THREADING
挑线杆在最高位置时，按下图所示序号穿线。引底线时，先将面线头捏住，转动主动轮使针杆向下
运动，再回升到最高位置，然后拉起捏住的面线线头，底线即被牵引上来。最后将底面二根线头一起置
于压脚下前方。
Raise the thread take-up lever to its highest position and thread the upper thread in the following order. To
draw the bobbin thread, hold the end of the needle thread and turn the balance wheel to lower the needle bar and
then to lift it to its highest position. Pull the needle thread and the bobbin thread is drawn up. Put the ends of
needle thread and bobbin thread front ward under presser foot.

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7. 针距、倒顺送料 SET STITCH LENGTHAND REVERSE FEEDING
1) 针距的长短，可以用转动针距表盘 A 来调节。针
距表盘 A 的平面 B 上的数字表示针距长短尺寸(单
位为毫米)。
2) 倒向送料时，可以将倒缝操作杆 C，向下揿压，即
能进行倒送。手放松后，倒缝操作杆 C自动复位，
恢复顺向送料。
3) 缝制中轻轻按下倒缝按钮的期间，进行倒缝，手放开
按钮，恢复顺缝。推动照明按钮，可打开 LED 灯照明。
1) Stitch length can be set by turning Dial ( A ).The
figures on Face ( B ) of dial show stitch length in mm.
2) Reverse feeding starts when Reverse Feed Lever (C)
is depressed, and the machine will feed forward again
if Reverse Feed lever ( C ) is released.
3) With the backstitch button pressed lightly during sewing,
reverse sewing can be done. When the push-button is
released, reverse sewing turns into forward sewing. Push
the lighting button to turn on the LED light.
8. 压紧杆高度定位 POSITION PRESSER BAR
先旋松压紧杆的调压螺钉锁紧螺母 E，然后旋松调压
螺钉 A，卸下面板 B 的橡皮塞，旋松螺钉 C，定出压紧杆的
位置(压紧杆的正确定位：在压脚上升最高时，针板面与压
脚底面距离为 6 毫米)，旋紧螺钉 C，塞上橡皮塞，再旋紧
压紧杆螺钉 A，然后旋紧调压螺钉锁紧螺母 E，即成。
Loosen lock Nut ( E ) and Pressure Regulating Thumb
Screw (A). Remove rubber plug from Face Plate (B). Loosen
Screw (C) and adjust the position of Presser Bar (D) till the
presser foot is 6 mm above the throat plate will the presser
foot lifted to its highest. Tighten Screw (C) and put in the
rubber plug. Tighten pressure Regulating Thumb Screw (A)
and Lock Nut (E).

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9. 压脚压力调节 ADJUST THE PRESSURE OF PRESSER FOOT
压脚的压力，要根据缝料的厚度加以调节。首先旋
松调压螺钉锁紧螺母 A，缝纫厚料时，应加大压脚压力，
这时将机头顶部的调压螺钉按图 a 所示箭头方向转动，
反之，缝纫薄料时，可按图 b 所示的方向，转动调压螺
钉，以减少压脚压力。最后旋紧调压螺钉锁紧螺母 A
即成。压脚的压力，应以能正常推送料为宜。
Pressure of presser foot is to be adjust in accordance
with thickness of materials to be sewn.
First loosen Lock Nut (A). For heavy materials, turn
the pressure regulating thumb screw (a) to increase the
pressure, while for light materials, turn the pressure
regulating thumb screw (b) to decrease the pressure. Then
tighten Lock Nut (A). The pressure of presser foot is recommended to be less as long as normal feeding is
ensured.
10. 挑线簧调节 ADJUST THREAD TAKE-UP SPRING
挑线簧摆动幅度为 8-10 毫米。缝纫薄的缝料(短针距)，则要减弱挑线簧的张力和放宽其摆动幅度，
缝制特别厚的缝料则反之。
The rang of the thread take-up spring is 8 to 10mm.Sewing light material (small stitch), weakened the
tension of the thread take-up spring and widened the range of the thread take-up spring. Sewing the heavy
material, the adjustment is opposite.
1) 挑线簧张力调节 Adjusting the thread take-up
spring tension
先旋松夹线调节座螺钉 A，夹线螺钉 B 就能转动，
顺时针转动时，张力增加，反之则减少，调节好后，仍
将夹线调节座螺钉 A 旋紧。
控制方法：松开夹线调节座螺钉 A，将夹线螺钉 B，
逆时针转动，使挑线簧 C 的张力压缩到 0，再把夹线螺
钉 B 顺时针转动，至挑线簧 C 触及夹线调节座上止动缺
口，然后，夹线螺钉 B 再逆时针回转二分之一转动角度
即可。最后旋紧夹线调节螺钉 A。

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Loosen Set Screw (A), turn Tension Stud (B) clockwise to increase the spring tension, or turn the stud
counter-clockwise to decrease the spring tension.After the adjustment, be sure to tighten Set Screw (A).
To Attain this: First loosen Set Screw ( A ), turn Tension Stud ( B ) counter-clockwise to decrease the
tension of Thread Take-up Spring ( C ) to zero, then turn Tension Stud ( B ) clockwise until Spring ( C ) comes
to the notch of thread tension regulating bushing, and again turn Tension Stud ( B ) halfway back
( counterclockwise ) After the adjustment. Tighten Set Screw (A ).
2) 挑线簧摆动幅度的调节 Adjusting the thread take-up spring stroke
放松夹线调节座固定螺钉 B，转动夹线器 C，调节其摆动幅度，夹线器 C 顺时针转动，摆动幅度增大。
反之则减少。通常，机器在出厂前，挑线簧均以调整
妥善。只是在缝纫特殊的缝料或特殊的缝线时，才需
要重新进行调整。
Loosen Set Screw (B), turn Stud (C) clockwise to
increase the stroke or turn Stud (C) counter-clockwise to
decrease the stroke. After the adjustment, tighten Set
Screw (B). Before leaving the factory, the thread take-up
spring has properly been adjusted. Readjustment is
needed only in the case of special material or special
thread.
11.底面线张力调节 ADJUST THREAD GUIDE AND THREAD TENSION
1） 过线勾位置调整 Adjusting of the thread guide
左侧 Left 中间 Middle 右侧 Right
过线勾位置
Thread guide
position
缝料
Materials 厚料 Heavy 中厚料 Medium 薄料 Light
过线勾的位置, 根据上表，参照缝料的缝制条件进行相应调节。
Refer to the table above, and adjust according to the stitching conditions, the material and thread.

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2) 缝线张力 Adjusting of thread tension
3) 面线张力调节 Adjusting of upper thread tension
(1) 按图示旋转夹线螺母调节面线张力。
(2) 应根据底线张力调节面线张力。
(3) 通常，机器在出厂前，挑线簧调整妥善。在缝纫
特殊的缝料或特殊的缝线时，需要进行调整。
(1) Upper thread tension can be adjusted by thread
tension nut.
(2) Upper thread is to be adjusted according to the lower
thread tension.
(3) For special fabric sewing with special thread, the
desired tension can be obtained by adjusting the strength
and operating range of thread take-up spring.
4) 底线张力调整 Adjusting of lower thread tension
(1) 用小号螺钉起子旋转梭心套上的梭皮螺钉（A）
加大或减少底线压力。
Lower thread tension can be adjusted by screw (A).
(2) 一般来说，梭心装入梭心套后，拉出缝线穿过梭
心套线孔，捏住线头吊起梭套，梭心套则能缓缓下
落，就可以使用。
The thread tension can be checked as the
following. Hold the end of pulled out thread and if the
bobbin case fall slowly, the tension is proper.

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5) 剪线后存留机针线长度的调整 Adjustment
of remaining needle thread length after
thread trimming
(1) 拧转夹线螺钉 ①进行调节。
(2) 顺时针旋转，留在机针上的线变短。
逆时针旋转，留在机针上的线变长。
(1) Turn the pretension nut ①and adjust.
(2) When turned clockwise, the length of thread left in
the needle will be short.When turned counterclockwise,
the length of the thread left in the needle will be long.
12. 机针与旋梭同步调节 TIME NEEDLE TO ROTAING HOOK
1) 机针位置的调节： Adjusting the needle position
用手转动主动轮，使针杆 C 下降至最低位置，卸下面板 A 上的橡皮塞，旋松针杆 C 上的针杆接头螺
钉 B，上下移动针杆 C，定出同步位置(针杆的同步位置：针杆下降至最低位置时，针杆上的同步标记 E
与套筒 D 下端面成一致的位置，这时机针线孔的中心 F 与旋梭内面 G 也成一致位置)。 旋紧针杆接头螺
钉 B，塞上橡皮塞即成。
Turn balance wheel by hand to bring Needle Bar ( C ) to the lowest position of its stroke. Remove rubber
plug from Face Plate ( A ).Loosen Set Screw ( B ) of needle bar adaptor. Move Needle Bar ( C ) vertically to
adjust needle timing. After the adjustment, tighten Set Screw ( B ) and put in the rubber plug. The standard
needle timing is to align Timing Mark ( E ) on the needle bar and the bottom of Needle Bar Bushing ( D ) and
meanwhile align the Inner Surface ( G ) of the hook and the center of Needle Eye ( F ) when the needle bar gets
down to its lowest position.

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2) 旋梭同步的调节：Adjusting the hook point timing
旋梭和机针之间的相互运动关系，
对缝纫性能的影响很大。标准的同步关
系是：当机针向下运动到最低位置后，
目测针杆的同步标记 A 的间距为 2.2 毫
米，把针杆 B 从最低位置上升 2.2 毫米，
这时旋梭的钩线尖 D，应与机针的中心
线 C 一致，在此位置时，钩线尖 D 应高
于机针线孔 E 上边 1.0-1.5 毫米。
Timing of needle motion to rotating
hook motion has a great effect on sewing
performance. The standard hook point
timing is to align Hook Point ( D ) and
Needle Centerline ( C ) when Needle Bar
( B ) is lifted by 2.2mm from the lower
end of its stroke. Besides, Hook Point (D)
should be 1.0-1.5mm above the upper end
of needle eye ( E ).
在调节旋梭的同步关系时，还要注
意到旋梭尖与机针的侧面间隙。机针 F
缺口的底部与旋梭钩线尖 G 的间隙为
0.05 毫米。
When adjusting the hook point timing, also notice that the clearance between the bottom of needle notch
( F ) and Hook Point ( G ) should be approx. 0.05mm.
13. 旋梭装卸 REPLACE ROTATING HOOK
先将针杆上升到最高位置，拆下针板，取下机针和梭心套。
旋开旋梭定位勾螺钉 C，把旋梭定位勾 A 取下。再旋松旋梭螺钉
D。在此位置如果取出旋梭，旋梭将会与牙架相碰，此时可以转
动主动轮使牙架上升到最高位置。然后扭转旋梭让过牙架位置，
即能将旋梭很容易地取下。安装旋梭时，可以重复上述过程。
注意：旋梭定位勾的安装位置应是旋梭定位勾 A 的勾尖侧面与
机针 B 的侧面应成一致。其另外两侧面之间间隙为 0.5-0.7 毫
米。

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Lift needle bar to the highest position of its stroke. Remove throat plate, take down needle and bobbin case.
Loosen Screw ( C ) of hook position and take down Hook Position ( A ). Loosen two Screws ( D ) of rotating
hook. Turn balance wheel to raise feed bar to its highest position, then take down the rotating hook by turning it
away from feed bar. Installing the hook can be done in reverse sequence. Note that Needle ( B ) and the convex
surface of Hook Position ( A ) should align with a clearance of 0.5-0.7mm between them.
14.梭心线的绕法 HOW TO WIND THE LOWER THREAD ON THE BOBBIN
1) 将梭心安装在梭心轴上。
2) 按图示穿线, 照顺时针方向在梭心上绕几圈。
3) 按图示箭头方向按扳手①，然后启动机器。
4) 线绕满后，扳手①被弹开，绕线自动停止。
5) 调节夹线螺母②来调整梭心线的紧密度。
6) 梭心线的线量调节：
拧松螺钉③移动调节板④。
a. 将调节板④方向 a方向移动，线量减少。
b. 将调节板④方向 b方向移动，线量增加。
1) Press the bobbin onto the thread winding shaft.
2) Pass the thread for winding thread as shown in the
figure, and wind the end of the thread clockwise
around the bobbin several times, then wind the thread
on the thread adjuster side counter-clock wise several
times.
3) Press lever ①in the direction of the arrow, and
start the sewing machine.
4) The operation will automatically stop when
winding is completed.
5) Adjustment of thread winding strength Adjust with
the thread adjuster nut ②.
6) Adjustment of thread winding amount Adjust by
loosening screw ③and moving the adjustment plate ④
a. The thread winding amount will decrease when moved in
the direction of a.
b. The thread winding amount will increase when moved in the direction of b.

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15. 松线器挺线调节 ADJUST OPENING TIME OF THE TENSION DISCS
压脚在提升范围(2-7 毫米)，夹线器上的夹线板有一个张开期，挺线的时间可以进行调节。调节时，
先卸下机头背面的橡皮塞，旋松膝控提升杠杆(左)螺
钉 A，这时松线凸轮 D 可以左右移动，往右移挺线慢，
往左移挺线快。调节时，如有条件的话，在压脚 C 下
垫上一块与压脚提升高度尺寸相等的垫块，则调节时
方便。调节好，拧紧螺钉 A。
Within the presser foot lift range of 2-7mm opening
time of the tension discs can be adjusted as follows.
Remove the rubber plug from the back of arm and
loosen Screw ( A ) of knee lifter lever ( left ).Move the
tension releasing cam (B) leftward for earlier opening or
rightward for later opening. It will facilitate the
adjustment to put under the presser foot (C) a block as thick as the presser foot lift. After the adjustment, fully
tighten Screw ( A ).
16. 送布牙的调整 ADJUST THE HEIGHT OF FEED DOG
1) 转动主动轮，直至送布牙从针板面突出的最高位置为止。
2) 旋松抬牙轴曲柄(右)螺钉 A。
3) 把牙架 B 按所示的箭头方向移动，定出送布牙高度。
（送布牙高度：送布牙尖端至针板面 B 的间距为 1mm）
4) 调节好后把螺钉 A 旋紧。
1) Turn balance wheel until feed dog is lifted to its highest position from throat plate surface.
2) Loosen Screw ( A ) of feed lifting rock shaft crank right
3) Move Feed Bar ( B ) in the direction shown by the arrow to adjust the height of the feed dog. The
standard height of feed dog is that the top of feed dog is 1mm above Throat Plate Surface ( B ).
4) After the adjustment, be sure to tighten Screw ( A ).

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17. 调整送布牙倾角 ADJUSTMENT OF FEED DOG INCLINATION
送布牙的标准位置应为水平。如果需要，可以根据缝料按照以下方法调整送布牙倾角
1) 旋松螺钉 A。
2) 用螺钉起子左右旋转牙架曲柄偏心轴。
3) 调整结束，旋紧螺钉。
If necessary, adjust the inclination according to
the material to be sewn as follows:
1) Loosen the screw “A”.
2) Rotate the eccentric shaft clockwise or
counterclockwise with screw driver.
3) Tighten the screw “A”.
18. 送布牙与机针同步调节 TIME FEED MOTION TO NEEDLE MOTION
机针 A 尖端到达针板面 B 时，送布牙 C 尖端与针板
面 B 高低一致，此为标准同步关系。
The standard timing of feed motion to needle motion is
that the top of feed Dog ( C ) is flush with Throat Plate
Surface ( B ) when the point of Needle ( A ) reaches Throat
Plate Surface ( B ).
不同步时的调节方法：先打开机壳后盖板、侧板，旋松送布凸轮螺钉 A、D，按住送布凸轮 B，再缓
缓转动主动轮，当上轴油孔 C 的上端与送布凸轮的基准孔 G 的下端一致时，即达到同步关系。调节时，
送布凸轮 B 与牙叉滑块 H 的间隙应为 0.3-0.5mm。最后，旋紧螺钉 A、D 即可。
If feed motion is not timed to needle motion, adjust as follows:
Remove Arm back cover and side cover. Loosen Set Screws (A) and (D) of feed and feed lifting eccentric. Hold
Feed and Feed Lifting Eccentric (B) and turn Balance Wheel slowly until the upper edge of Arm Shaft Oil Hole

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(C) aligns with the lower edge of Reference Hole (G) of feed and feed lifting eccentric. Leave a clearance of
0.3-0.5mm between Feed and Feed Lifting Eccentric ( B ) and Eccentric Sleeve ( H ), then tighten Set Screws
( A ) and ( D ).
19.剪线装置的调整 ADJUSTMENT OFTHREAD TRIMMER MECHANISM
1）剪线装置如图所示 The thread trimmer mechanism illustrated
2) 剪线电磁铁的行程：Operation stroke of the thread trimmer solenoid：
(1) 标准的行程为 6.0m。
(2) 通过调节螺母 A来调整行程。
(1) Standard operation stroke is 6.0mm.
(2) This stroke can be adjusted by using nut “A”.

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3) 刀片的调整：Adjustment of knife engagement
（1）动刀片与定刀片的关系：
如图所示，动刀片与机针中心的距离为 7.5mm，定刀片与机针中心的距离为 5mm。
（2）刀片的调整：
启动机器，电磁铁工作，剪线凸轮会使动刀转动。当动刀转到极限位置时，其与定刀片的距离为
1.5—2mm。
（3）剪线电磁铁的调整：
a. 如果剪线情况不良，尤其当线比较粗时，只需增加剪线压力即可。
b. 剪线压力可如下所述进行调整：松开螺母 B，通过调节螺钉 A来调整剪线力量。
（1）Position of movable knife (left) and fixed blade:
The standard distances from the needle center are 7.5mm and 5mm from the movable knifeand fixed
blade respectively.
（2）Adjustment of knife engagement:
With the solenoid activated, turn on the machine. This rotates the thread trimming cam which rotates the
movable knife. When the movable knife has moved to its farthest distance, the standard engagement of the
blade is 1.5mm-2.0mm. The engagement can be adjusted properly mounting the drive arm.
（3）Adjustment of knife engagement pressure:
a. If a thread is poorly cut, particularly when it is thick, slightly increase the engaging pressure. This should
solve the problem.
b. The engaging pressure can be adjusted in this way: Loosen lock nut “B” and adjust it by using adjusting
screw “A”

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20. 定期清扫 PERIODICAL CLEANING
1) 送布牙、旋梭 Machine
(1) 卸下针板，清扫送布牙。
(2) 装针板时，应用手将螺钉拧 2-3 圈，然后旋紧针板
螺钉，要上均匀。
(3) 将机头放平，仔细清扫旋梭，同时用软布拭擦梭芯
套。
(1) Remove the throat plate and clean the feed dog.
(2) Assembling is to be made by screwing in the screw by 2
to 3rotations by hand at first, then tightening them evenly by
use of a long size screw driver.
(3) Lay down the machine head and clean the hook and
inner bobbin case.
2）油泵滤网的清扫 Cleaning oil pump, screen
如图所示，清除滤网 A 上的尘屑。
Swing out the machine head and clear off the dust and
dirt on oil pump screen A.

A.机壳部件 ARM BED AND IT'S ACCESSORIES
─ 18 ─