Instruction Manual 使用说明书 7700 High Speed Overlock Sewing Machine 高速包缝机 GB CN Installation Instructions 安装须知 Operating Instructions 操作须知 Basic Service Instructions 基本维修须知 Edition/版本：07/2006 Printed in China Part.-No.
7700 - Basic Machines 7700 - 基本机型 7704-O42-M00P Light and medium material 3-thread 1-needle standard overlock machine 薄至中厚料 3 线单针标准型包逢机 7714-B43-M00P Light and medium material 4-thread 2-needle standard overlock machine 薄至中厚料 4 线双针标准型包逢机 7716-C42-M00P Light and medium material 5-thread 2-needle safety seam machine 薄至中厚料 5 线双针标准型安全缝包逢机 Instruction Manual 使用说明书 Contents 目录 Installation Instructions 安装须知 Operating Instructions 操作须知 Basic Service Instructions 基本维修须知
Foreword This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations. The instruction manual contains important information on how tooperate the machine securely, properly and e'conomically.Observationof the instructions eliminates danger, reduces costs for repair anddown- times, and increases the reliability and life of the machine.
General safety instructions The non-observance of the following safety instructions can cause bodily injuries of damages to the machine. 1. The machine must only be ommissioned in full knowledge of the instruction book and operated by persons with appropriate training. 2. Before putting into service also read the safety rules and Instructions of the motor supplier. 3. The machine must be used only for the purpose intended. use of the machine without the safety devices is not permitted.
FOR SAFE OPERATION So as to avoid electric shock hazards, do not open the cover of the electrical box of the motor or touch any part inside the electrical box with the power to the machine turned ON. To prevent possible personal injury, never operate the machine with the belt cover and the eye guard removed. To protect against possible personal injury resulting from being caught in the motor, use a motor that is provided with a motor pulley cover.
SAFETY DEVICES Safety devices herein described may differ in accordance with the destination and specifications. Eye guard cover A cover to prevent the injury to the eyes, the head or the like due to the dispersion of components such as the broken needle. Safety label Finger guard A cover to prevent the injury due to the contact of fingers with the needle . Cautions on safety are described. Belt cover A cover to prevent the hands, the fingers and the clothes from being caught with the V belt.
CONTENTS 1. DESERIPTION OF PROPER USE............................................................................. 1 1 2. SPECIFICATIONS...................................................................................................2 2 3. INSTALLATION....................................................................................................... 3 3.1 INSTALLING THE FRAME SUPPORT PLATE.............................................................3 3.2 ATTACHING THE BELT COVER.................
1. DESERIPTION OF PROPER USE The sewing unit 7700 is designed for the sewing of light weight material which generally consists of textile fibres or leather. These material are commonly used in the garment and furnishing industries.furthermore the 7700 may also be employed to perform seams in so called technical textiles. As these applications are relatively rare and extremely varied the user is advised to evaluate any possible danger arising from such applications DURKOPP ADLER AG will be pleased to assist.
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3. INSTALLATION 3.1 INTALLING THE FRAME SUPPORT PLATE Semi-submerged type Attach rubber cushion 2 to frame support plate 1 2 1 Attach support plate washer 3 , support plate bolt spacer 4 , frame support plate 1 and support plate washer 3 in the written order to the machine table Then fix the frame support plate to the machine table with support plate bolt A 5 and nut 6 .
Fully-submerged type Attach frame support plate joint A 4 , frame support plate joint B 3 and rubber cushion 2 to frame support plate 1 . 4 2 1 3 Fix support plate bolt B 6 to the machine table Put frame support plate joint A 4 and frame support plate joint B 3 between support plate washers 5 respectively. 4 5 Install frame support plate 1 so that the cloth plate is 5 mm higher than the upper surface of the machine table.
3.2 ATTACHING THE BELT COVER Caution: Danger of injury! To protect against possible person injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Attach belt cover 1 to the machine head. 3.
4. PREPARATION AND OPERATION To avoid malfunction and damage of the machine, confirm the following: Before you put the machine into operation for the first time after set-up, clean it thoroughly. Remove all dust gathering during transportation and oil it well. Confirm that the voiltage has been correctly set. Confirm that the power plug has been properly connected to the power supply. Never use the machine in the state where the voitage type is different from the designated one. 4.
4.2 CHECKING THE DIRECTION OF ROTATION The correct direction of rotation of the sewing machine is clockwise when observing the machine from the handwheel side. Never allow the machine to rotate in reverse direction. If the machine rotates counter clockwise, the oil pump will fail to function resulting in seizure. 4.
4.4 THREADING THE MACHINE Caution: Danger of injury! To protect against possible person injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Thread the machine as shown in the figure. (Threading diagram is pasted inside the looper cover.) 1 2 2 Caution) Raise looper thread cam thread guide 1 and perform threading.
4.5 ADJUSTING THE PRESSURE OF THE PRESSER FOOT AND EMOVING THE PRESSER FOOT Caution: Danger of injury! To protect against possible person injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Increase Decrease 1 Adjust the pressure of the presser foot by turning presser foot adjust screw 1. When the adjust screw is turned clockwise, the pressure will increase .
5. BASIC SERVICE INSTRUCTIONS 5.1 ADJUSTING THE KNIVES AND OVEREDGE WIDTH Caution: Danger of injury! To protect against possible person injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Height of the lower knife Loosen setscrew 2 and adjust the height of lower knife 1 so that its edge is flush with the throat plate surface.
5.3 CLEANING THE FILTER AND PUMP NET 2 -To use the sewing machine for an extended period of time, clean filter 1 and pump net 2periodically twice or three times a year. If the filter and pump net are clogged with dusts, the machine components may be seized or womout extraordinarily. So,carefully check the filter and pump net. -If the lubricating oil in the machine is stained, change the oil also at the time of cleaning. 1 5.4 MOTOR PULLEY AND V BELT Use a clutch motor of 1/2 HP (400W).
5.5 DIMENSIONS USED TO ADJUST THE LOOPER AND THE NEEDLE Caution: Danger of injury! To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. To avoid possible accidents due to unfamiliarity with the machine, get a maintenance man who has a good knowledge of the machine or serviceman of our distributor to adjust the machine or replace any of its parts.
clearance provided between needle and blade point of lower looper 1 Push need to this side Adjust the lower looper so that the needle is pushed by 0.05 to 0.1 mm to this side by the blade point of lower lopper in the state where the blade point of lower looper is aligned with the center of needle. Then, adjust traveling needle guard 1 so that the clearance provided between the needle and the blade point of lower looper should be 0 to0.
5.6 DIMENSIONS RELATED TO THE POSITION OF THE THREAD TAKE-UP AND THE LOOPER THREAD CAM (STANDARD ADJUSTMENT) Caution: Danger of injury! To protect against possible person injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest.
Position of the looper thread take-up lever and the looper thread guide J B K A F I A C B C D E F G G K 26 22 12 6 I 27 23.5 9 E J H 68 25 44.5 22 37 26 9 8 D 26 22 24 8 26 19 15 18.5 30 26.5 12 26 H 6 10 8 27 23.5 For -042-M09P only B J L K O A E A M 7704-O42-M09P B C D 68.5 24 E F G 43 H I J K L M N O 10 17 6.8 20 23.5 35 N Dimensions of E and G are adjustmaent values when the upper looper is at rightmost point.
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