Page 2
Alle Rechte vorbehalten. Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten. All rights reserved. Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, even in extracts, without prior written permission of Dürkopp Adler AG, is prohibited.
Page 3
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.
The items that are supplied depend on your order. Before setup, please check that all the required components are present. The description is valid for the special sewing machine whose individual components are delivered directly and completely from Dürkopp Adler AG. 1 Machine head –...
Assembling the Stand There are two stand sets with different table plates available for the 669 class: Stand set Version MG 55-3 not separated, with or without cut-out MG 56-3 separated, hinged MG 55-3 stand assembly – Assemble the stand according to the illustration. –...
MG 56-3 stand assembly – Assemble the stand according to the illustration. – Fasten the pedal 2 to the stand brace 1. – Mount the stand brace 1 to the stand. – Turn the adjusting screws 4 to ensure a secure mount on the stand. The stand must be resting with all six feet on the floor.
Completing the table plate for the MG 55-3 stand with FIR clutch motor Top view of table plate (4x20) x2 Marking for stand (3,5x17) x2 (3,5x17) x2 (5x25) x2 (4x20) x2 – Turn over the table plate 4. – Screw on the cable channel 1. –...
Completing the table plate for the MG 55-3 stand with direct drive Top view of table plate (4x20) 2x (3,5x17) 2x (3,5x17) 6x Marking for stand (4x20) 2x – Turn over the table plate 5. – Screw on the cable channel 1. –...
Completing the table plate for the MG 56-3 stand with FIR clutch motor Top view of table plate (4x20) 2x (5x25) 2x (3,5x17) 2x Marking for stand (3,5x17) 6x (5x25) 2x (4x20) 2x ,5x25) 2x – Turn over the table plate 8. –...
Completing the table plate for the MG 56-3 stand with direct drive Top view of table plate (4x20) 2x (5x25) 2x (3,5x17) 2x Marking for stand (3,5x17) 6x (5x25) 2x (4x20) 2x – Turn over the table plate 5. – Screw on the drawer 1 together with its fixtures.
Fastening the table plate to the stand 3.7.1 MG 55-3 stand – Fasten the stand 4 to the table plate 1 using wood screws (6x30). Pre-drill the holes for the wood screws. Be sure to note the marking for the stand (refer to Chapters 3.3, 3.4).
3.7.2 MG 56-3 stand – Fasten the table plate 2 to the stand 5 using wood screws (6x30). Pre-drill the holes for the wood screws. Be sure to note the marking for the stand (refer to Chapters 3.5, 3.6). – Fasten the table plate 8 to the latch 7 using three wood screws (5x30).
Assemble support on table plate with cut-out (MG 55-3) In order to increase the stability of the right side of the table plate 1, the plate is support by a junction bar. – Fasten junction bar 2 to the stand using screw 3. Fasten bar to the bottom of the table plate using two wood screws (5x30).
Adjusting the working height of the MG 55-3 stand Caution: Risk of injury ! Ergonomic-related, operator injuries can result if the stand height is not adjusted to fit the operator. – The working height is adjustable between 750 mm and 900 mm (measured to the upper edge of the table plate).
Sewing Drive 5. 1 Driver type and application The following types of sewing drives are available: Sub-class Clutch motor positioning drive 669-180010 FIR 1147*.752.3 * Efka DC 1550/DA321G FIR 1148*.752.3 669-180112 Efka DC 1550/DA321G 669-180312 Efka DC 1550/DA321G * This clutch motor has an electro-magnetic brake which quickly stops the rotor after the motor has been turned off.
Mounting the Set-value Initiator for the Direct Drive MG 55-3 stand – Screw the angle bracket 3 under the table plate 4 (refer to Chapter 3.4). – Screw the set-value initiator onto the angle 3. – Hang the rod 2 on the set-value initiator and pedal. 6.1.1 Aligning the pedal –...
MG 56-3 stand – Screw the set-value initiator 3 onto the plate 5 on stand 1 using two screws 4 (M6 x 80). – Hang the rod 2 on the set-value initiator 3 and pedal. 6.2.1 Aligning the pedal – Loosen screw on the rod 2.
Putting on the machine head – Put the machine head 1 on the table plate. Screw tight from the bottom of the table plate using four screws 1 (M8 x 50) and washers 2.
Put the V-belt on and tighten for the FIR clutch motor Take off the protective cover. – Remove handwheel 1. – Remove the protective belt cover 4 on the sewing drive. Put on the V-belt and mount the protective cover. –...
Mounting the Knee Lever The sewing feet can be lifted mechanically by the knee lever 1. Attach the knee lever 1. – Position the knee lever from below so that the nose 2 points to the front. – Tighten screw 3 into the machine base. Aligning the knee lever –...
10. Mounting the Direct Drive 10.1 Mounting the motor and putting on the V-belt – Unscrew the handwheel 1. – Screw motor 3 onto the head using two screws 4 (M6 x 16) so that it can be easily shifted. –...
Page 28
– Fasten the Hall sensor 15 to the holder 8 using two screws 14 (M4 x 5). – Fasten the holder 8 with the Hall sensor 15 to the arm 8 using two screws 10 (M4 x 8). Guide the cable 11 through the clips 9. –...
10.3 Mounting the operating panel – Screw on operating panel 1 along with the thread guide 2. – Take off the valve cap 3. – Route the panel’s connection cable 5: Route the cable in the arm and then downwards through the opening in the table plate.
10.4 Mounting the sewing light (optional equipment) CAUTION ! The power supply to the sewing light is not disconnected when the main switch is turned off. Remember to pull out the mains plug before making this connection. The sewing light 1 will be mounted on the arm cover 2. –...
Electrical Connections 11.1 General Caution! All work on the electrical equipment of the sewing machine may only be carried out by qualified electricians or other appropriately trained persons. The power cord must always be disconnected while working on the electrical equipment! 11.2 Earthing 11.2.1 Machine head...
11.2.2 Knee switch – Fasten the large eyelet on the earth cable 1 to the knee switch using screw 2. – Screw the earth cable 2 to the control box using screw 3.
11.3 Checking the mains supply voltage Caution! The nominal voltage given on the sewing drive’s identification plate must correspond to the mains voltage where it is to be operated. 11.4 Connecting the clutch motor (FIR) to the mains voltage Caution! A pluggable connection must be used to connect the sewing machine to the mains supply voltage! The clutch motor should be connected to three-phase current:...
11.4.1 Rotational direction of the clutch motor Caution! Make sure to check the rotational direction of the sewing drive before initial commissioning of the sewing machine! Operating the sewing machine with the incorrect rotational direction can damage the machine. 11.4.2 Checking the rotational direction The rotational direction of the clutch motor (a three-phase motor) is dependent on the three-phase mains connection and the method of...
11.4.4 Connecting the sewing light transformer (optional equipment) CAUTION ! The transformer for the sewing light is connected directly to the mains power supply and is live even when the main switch has been turned off. Always pull out the mains plug before starting any work on the transformer (for example, when changing the fuse).
11.5 Connecting the DC positioning drive to the mains voltage Caution! A pluggable connection must be used to connect the sewing machine to the mains supply voltage! The DC positioning drive is run with single-phase AC current of 190 - 240V 50/60Hz.
11.5.2 Connecting the DA321G control unit KN19 – Plug the cable from the setpoint director device (pedal) into the B80 socket on the control unit. – Plug the motor sensor cable 1 into the B2 socket on the controller. – Plug the motor cable 2 into the B41 socket on the controller.
11.5.3 Checking the rotational direction of the DC positioning drive CAUTION ! Make sure to check the rotational direction of the sewing drive before commissioning the sewing machine. Operating the sewing machine with the incorrect rotational direction can damage the machine. The arrow on the belt cover indicates the machine’s proper direction of rotation.
11.5.4 Checking the positioning The needle position should already be properly set upon arrival of the sewing machine. However, the needle position should be checked before starting up the machine. Prerequisite · The sewing foot should be set in the high position. (Refer to the operating instructions.) ·...
In order to ensure that the machine is properly positioned and that all functions are correct, the following parameters must be verified or set correctly: · Parameter F-111: set to 3000 rpm or less. · Parameter F-270: set to 6 (selection of positioning sensor) ·...
11.5.7 Connecting the sewing light on the DA321G control unit – Loosen the four screws on the front plate of the control unit. – Take off the front plate. – Push the cable from the rear through the cable duct 1 in the controller.
12. Pneumatic Connections CAUTION ! The pneumatic equipment will only function smoothly when the system’s supply pressure in between 8 and 10 bar. The operating pressure of the sewing machine is 6 bar. Pneumatic connection package You can order a pneumatic connection package (order number 0797 003031) for stands with compressed-air maintenance units.
Page 43
Connecting the maintenance unit to the sewing machine head – Unscrew the cap 6. – Connect hose 3 (in accessory pack) with the distributor plate 7 located on the machine head. – Screw the cap 6 back on. Setting the operating pressure The operating pressure is 6 bar.
13. Lubrication Caution: Risk of injury ! Oil can cause skin rashes. Avoid prolonged skin contact. If oil or grease contacts your skin, wash yourself thoroughly. CAUTION ! The handling and disposal of mineral oils is subject to legal constraints. Deliver used oil to an authorized reception point.
14. Sewing test After setup is complete, a sewing test must be carried out. – Plug in the power supply plug. Caution: Risk of injury ! Turn the main switch off. The needle thread and shuttle thread must be threaded only when the machine is turned off.
Need help?
Do you have a question about the 669 and is the answer not in the manual?
Questions and answers