838 Spezialnähmaschine Betriebsanleitung D Instruction manual GB Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 521 / 9 25-00 • Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com Ausgabe / Edition: 10/2008 Änderungsindex Rev. index: 00.0 Printed in Federal Republic of Germany Teile-Nr./Part.-No.
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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 to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-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 or damages to the machine. 1. The machine must only be commissioned 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.
Contents Page Part 2: Installation instructions – Class 838 1. Items delivered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. General and transport packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. 3.1 3.2 3.3 Assembling the stand Assembling the stand components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Completing the table plate and mounting to the stand . . . . . . . . . . . . . .
For your notes:
1. Items delivered It is possible to order either a complete sewing unit or only individual components. Before setup, please check that all the required components are present. This description is valid for the special sewing machine whose individual components are delivered directly and completely from Dürkopp Adler AG. These directions describe the assembly and installation of the special sewing machine.
2. General and transport packaging Caution! The special sewing machine may only be set up by trained personnel. Transport packaging If you have purchased a mounted sewing machine, you must remove the following packaging: – Safety straps and battens from the upper machine head, table and stand, – Safety blocks and straps from the sewing drive. 3. Assembling the stand 3.1 Assembling the stand components 3 1 2 – – 4 Assemble the stand components according to the illustration.
3.2 Completing the table plate and mounting to the stand 10 8 9 2 3 5 6 1 10 7 260 4 11 36 15 8 14 50 460 80 15 15 180 15 12 13 16 32 8 17 80 30 30 72 770 185 GB – Turn over the table plate (1). – Screw on the cable channel (2). – Screw on the setpoint director device (3). – Screw on the cable clamp (4). – Position the oil collector (5) in direction of arrow (6) so that the edge of the oil collector is aligned with the table plate edge. Screw on the oil collector.
3.3 Adjusting the working height 1 – – – – The stand height can be adjusted between 750 and 900 mm. Loosen the screws (1). Set the horizontal height of the table plate as needed. Check the scale on the stand spar. The height of the stand should be appropriate to the height and operating position of the operator. Tighten the screws (1). Caution Danger of Injury! Ergonomic-related, operator injuries can result if the stand height is not adjusted to fit the operator.
4. Assembling the sewing machine head 4.1 Integrating the sewing machine head into the stand 1 2 – – 4.2 If the special sewing machine is equipped with a drive (direct drive) on the machine head, then you should insert the head section (1) diagonally into the space on the table plate. Be sure to screw in the installation plate (2) immediately after inserting the head section. This will prevent the head section from falling out if tilted or turned over.
4.3 Pedal adjustment 2 90 3 2 1 – – For proper ergonomic function, set the pedal (1) as follows: The middle of the pedal should be position approximately under the needle. The stand brace (3) is fitted with slotted holes to help in aligning the pedal properly. Adjust the tie rod (2) so that the foot axis is perpendicular to the pedal surface. Caution Danger of Injury! Ergonomic-related, operator injuries can result if the proper pedal position is not maintained.
4.4 Assembling the knee lever and oil pump hose 1 4 6 5 3 7 9 10 8 GB 10°± 5° – – – – – – – Use the hand lever to lift the sewing foot. Tilt the machine head (1) to the rear. Insert the shaft (3) into the lever (4). Screw the screw (5) with the washer (6) into the shaft (3). Press the hose (7) into the clamps (8) and pull on to the strainer (9). Reposition the machine head vertically and adjust the knee lever (10) as shown in the illustration. Align the knee cushion.
4.5 Assembling the connection cable, control panel, and diode illumination on the machine head 1 2 4 3 6 5 9 7 8 – – – – – – – 10 A connection cable (1) is included in the delivery of all machines that come with a positioning drive. The operating panel (2) must be ordered separately (optional equipment). When the operating panel is ordered, the thread guide (3) is also included in the delivery. The diode illumination (5) must also be ordered separately (optional equipment).
5. The special sewing machine’s electrical connection The sewing machine drive is supplied from the low voltage power supply. Caution! Work on the electrical equipment of the sewing machine may only be carried out by qualified electricians or other appropriately trained persons. It is strictly required to carefully read the drive instructions provided by the manufacturer! The power cord must always be disconnected while working on the electrical equipment! 5.
5.1.1 Connecting the sewing light transformer to the supply voltage Caution Danger of Injury! The sewing light cannot be turned off with the main switch (EN 60 204-31)! The mains power supply must be disconnected before mounting the illumination, repairing the transformer or changing fuses. 2 6 5 – – – – – – – – – – – – 12 1 6 5 4 3 Pull the plug out of the socket. Loosen the four screws on the front plate of the control cabinet. Take off the front plate.
5.2 Establishing equipotential bonding 1 2 The earth (grounding) cable (1) is included in the machine’s accessory pack. The earth cable (1) conducts static charges from the machine head via the motor foot to the earth. – Attach the earth cable (1) to the tab connector (2) (which is already screwed on to the machine head). Guide the other end of the cable under the table plate. – Screw the end of the earth cable to the earth (grounding) point on the drive ( ).
5.3 Connecting the sewing machine head to the sewing drive The electrical connection to the machine head is described in section 4.5. B 4 1 M B 2 B 8 0 M E B ... B 1 8 B 7 7 6 L S M ... V 8 . . A 74 1 2 – – – – – – 14 9 3 5 6 8 Plug the connection cable from the machine head into the plug connector (1). Plug the cable from the operating panel into the plug connector (2). Plug the connector (3) from the motor sensor (6) into the plug connector (4).
6. Adjusting the Efka positioning drive The programming and setting of parameters is used to specify the function of the sewing drive controller. All parameter values for the corresponding sub-classes are already assigned when the complete sewing machine is delivered. Some pre-set values for the controller (e.g., maximum rotational speed) may also be changed. When replacing the controller, these machine-specific parameters must be re-specified on the new controller. 6.
6.1.3 Specific parameter values for the Class 838 Changing machine parameters for machines with 18/28 tooth drive ratios Parameter Original value New value 290* 0 4 Sewing machine class Description of parameter 111 1700 - Max. sewing speed 170 - - Reference position 171-2E 315 325 Position 2 180 20 30 Angle of turn back after cutting 250 16 4 1 stitch with the second stitch length * This parameter must be selected first.
6.2.3 Checking the set positions 1. Position Turn the main switch on. Step forwards slightly on the pedal and then release. The machine will stop in the first position (refer to 6.2.1). The number 225° (± 5°) on the handwheel scale is aligned with the mark on the arm. 2. Position First step slightly forwards on the pedal. Then press backwards with your heel until the machine stops. The machine will stop in the second position (refer to 6.2.1).
7. Pneumatic connection Caution! A working air pressure for the sewing machine should be 6 bar. 3 5 2 6 1 4 – – – – 7. Screw the compressed-air maintenance unit (1) to the stand brace as shown in the illustration. Screw on the elbow fitting (2) (contained in the accessory pack). Connect the hose (3) from the machine head to the elbow fitting (2). Screw on the connection hose (4) according to the illustration. Connect the other end fitted with the quick-coupling to the compressed air system.
8. Sewing test You should perform a sewing test after you have completed all work on the installation and settings. – Thread in the winder thread (refer to operating instructions). – Turn the main switch on. – Lock the sewing foot in the lifted position (refer to operating instructions). – Fill up the bobbin at a low speed. – Turn the main switch off. – Thread in needle thread and bobbin thread (refer to operating instructions). – Select the material to be processed.
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