971-01 Special sewing machine
All rights reserved. Property of Dürkopp Adler AG and protected by copyright. Any reuse of these contents, including extracts, is prohibited without the written approval in advance of Dürkopp Adler AG.
Contents 1 About these operating instructions .......................................... 3 1.1 1.2 1.3 1.4 1.5 1.5.1 1.5.2 Scope of application of the operating instructions ........................ 3 For whom are these operating instructions intended?.................. 3 Representational conventions – Symbols and characters............ 3 Other documents .......................................................................... 5 Liability.................................................................
Contents 2 6.4 6.5 6.6 6.7 6.8 6.8.1 6.8.2 6.9 Installing the material holders ..................................................... 42 Installing the reel stand............................................................... 43 Aligning the sewing unit .............................................................. 43 Connecting the stacker to the sewing unit .................................. 43 Electrical connection of the sewing unit......................................
About these operating instructions 1 About these operating instructions These operating instructions for the 971-01 sewing unit have been compiled with the utmost care. They contain information and notes to make long-term and reliable operation possible. Should you notice any discrepancies or if you have improvement requests, then we would be glad to receive your feedback, 5.9 Customer service, pg. 38.
About these operating instructions Faults Indicates faults that can occur due to an incorrect setting. Steps to be performed when operating the machine (sewing and equipping) Steps to be performed for servicing, maintenance and installation Steps to be performed via the software control panel 1. The individual steps are numbered: First step 2. Second step ... The sequence of the steps must always be followed. • Lists are identified by bullet points.
About these operating instructions 1.4 Other documents The device contains built-in components from other manufacturers. The respective manufacturers have carried out hazard assessments for these purchased parts and confirmed compliance of the design with the applicable European and national regulations. The intended use of the built-in components is described in the corresponding manuals of the manufacturers. 1.
About these operating instructions must be compatible with EN 60204-31:1999. Only authorized/trained persons may work on the machine. The manufacturer will not be held liable for damage resulting from improper use. WARNING Danger due to high voltage, crushing and sharp objects. Improper use can result in injuries. Please follow all instructions provided. ATTENTION Improper use could result in material damage. Please follow all instructions provided. 6 Operating Instructions 971 Version 00.
Performance description 2 Performance description The Dürkopp Adler 971-01 is a rotary machine for sewing cuffs. 2.1 Features The rotation concept enables an overlapped mode of operation and thus yields a high volume output. Through optimal workplace design, everything is within easy reach and a high level of operating comfort is assured. The 971-01 has work stations for inserting or feeding the sewing material, for sewing, for cutting excess material ends and for stacking the sewn pieces.
Performance description 2.3 Additional equipment Using a flexible system of additional equipment, the sewing unit can be equipped optimally and cost-effectively to suit the relevant application.
Performance description Technical data Model Looper thread strength (core spun thread) 120/-140/2 Looper thread strength (polyester, endless) 120/2 Number of stitches on delivery [rpm] 2800 Maximum number of stitches [rpm] 2800 Stitch length [mm] Cutting distance [mm] Cuff length [mm] 2 3.5 - 4.5 - 5.5 220-350 Cuff width, maximum [mm] 140 Smallest seam radius [mm] 1.5 Size adjustment length, maximum [mm] 80 Operating pressure [bar] 5 Air consumption approx. [L/min.
Performance description 10 Operating Instructions 971 Version 00.
Safety instructions 3 Safety instructions This section contains basic instructions for your safety. Read the instructions carefully before setting up or operating the machine. Make sure to follow the information included in the safety instructions. Failure to do so can result in serious injury and damage to the machine. 3.1 Basic safety instructions The machine may only be used as described in these operating instructions.
Safety instructions Requirements to The machine may only be set up by qualified specialists. be met by the personnel Maintenance work and repairs may only be carried out by qualified specialists. Work on electrical equipment may only be carried out by qualified specialists. Only authorized persons may work on the machine. Every person who works on the machine must have read the operating instructions first. Operation Inspect the machine while in use for any externally visible damage.
Safety instructions Symbols In the case of danger to personnel, the following symbols indicate the type of hazard: Symbol Type of danger General danger Danger due to electric shock Danger due to sharp objects Danger due to crushing Examples Examples of the layout of the warnings in the text: DANGER Type and source of the danger Consequences in the event of noncompliance Measures for avoiding the danger This is what a warning looks like for a hazard that will result in serious injury or even death if
Safety instructions CAUTION Type and source of the danger Consequences in the event of noncompliance Measures for avoiding the danger This is what a warning looks like for a hazard that could result in moderate or minor injury if the warning is not complied with. CAUTION Type and source of the danger Measures for avoiding the danger This is what a warning looks like for a hazard that could result in environmental damage if the warning is not complied with.
Device description 4 Device description 4.1 Elements on the sewing head Fig. 1: Elements ཾ ཽ ོ ཻ ཱ ི ཱི ེ ུ ཱུ ྲྀ ཹ ླྀ ཷ Number Designation Function 1 Knurled screw Setting the sewing foot pressure 2 Thread regulator To set the correct needle thread quantity 3 Thread monitor Reports a needle thread break 4 Needle 971-B-1 system 5 Cover plate Thread take-up cover, remove to thread. 6 Flap Covers the looper area, open out to thread.
Device description Number Designation Function 13 Inspection glass To check the oil supply to the sewing head 14 Rotary knob Adjusts the needle thread tension 15 Thread guide Guides the needle thread Fig.
Device description 4.2 Elements on the cutting head Fig. 3: Cutting head Number Designation Function 1 Oil pot Lubricates all the moving parts in the head. 2 Motor Drives the cutter and the magnetic roller. 3 Weight Presses sliding block 5 of the shearing head sideways into the fabric support surface, so that the knife is always parallel to the seam contour. 4 Oil reservoir Supplies top blade holder and the rotating parts with oil. The reservoir must always be filled with oil.
Device description Number Designation Function 6 Blow pipe Blows the sewing material into the cutting position 7 Blow pipe Blows the chain into the cutting position. 4.2.
Device description 4.3 Elements on the frame Fig.
Device description Fig. 6: Maintenance unit ཱུ ླྀ ྲྀ ཷ 20 Number Designation Function 6/7 Pressure controller To set at 5 bar, pull the sleeve upward and turn with pressure gage accordingly 8/9 Air filter and water separator Before the water level reaches the filter, turn the screw as far as required to drain the water off. Do not interrupt the compressed air supply while doing this Operating Instructions 971 Version 00.
Device description 4.4 Elements on the control box Fig. 7: Control box ེ Number Designation Function 11 Motor circuit breaker Switches off the entire sewing unit in the event of an overload or a short circuit Operating Instructions 971 Version 00.
Device description 4.5 Elements on the stacker Fig.
Operation 5 Operation 5.1 Threading the needle thread WARNING Caution: Risk of injury! Switch off the main switch before threading. Fig. 9: Threading ཱ ི (1) - Thread lever (2) - Thread guides (3) - Thread tensioner To thread the needle thread: 1. Place the spool of thread on the thread reel holder. 2. Guide the thread alternately through the guide eyelets of the take-up arm. 3. Feed the thread through the thread tensioner (3) and thread guides (2). 4.
Operation 5.2 Threading the looper thread WARNING Caution: Risk of injury! Switch off the main switch before threading. Fig. 10: Threading (1) - Thread tensioner (2) - Thread guide plate (3) - Cover plate (4) - Thread down-holder (5) - Hole (6) - Hole (7) - Spring To thread the looper thread: 1. Place the spool of thread on the thread reel holder. 2. Guide the thread alternately through the guide eyelets of the take-up arm. 3. Feed the thread through the thread tensioner (1) and thread guide plate (2).
Operation 5.3 Adjusting the thread tensions The thread tension of the needle thread should be tighter than that of the looper thread. Overly tight thread tensions cause the material to be pulled together. Overly loose looper thread tensions can cause missed stitches. 5.4 Removing a thread break Fig. 11: Thread break (1) - Throat plate insert On the sewing head there are two thread monitors, whose switching flags are released, if the needle or looper thread is torn.
Operation 4. Swing the sewing head back in. When doing so, ensure that the throat plate insert (1) is in the position shown in the figure and that its left side is pressed firmly against the fabric support surface. 5. Sew 2 - 3 securing stitches. To do this, first hold the needle and looper threads securely and turn the hand wheel accordingly. 6. Switch on the machine and start the normal sewing sequence. 5.
Operation 5.6 Preparing, starting and interrupting the automatic sequence 5.6.1 Replacing the adjustable material holders WARNING Caution: Risk of injury! Switch off the main switch before replacing material holders. Fig. 13: Replacing material holders (1) - Special key (2) - Adjusting screws (3) - Screw (4) - Screw (5) - Numbering (6) - Fastening screws To replace material holders: 1. Set the material holders to the largest size by loosening the screws (3) and (4) with the special key (1). 2.
Operation 7. Swing the sewing and cutting heads back in, 5.7.1 Swinging the sewing head in and out, pg. 31, 5.7.2 Swinging the cutting head in or out, pg. 33. 5.6.2 Changing the size of the adjustable material holders WARNING Caution: Risk of injury! Switch off the main switch before making settings. Fig.
Operation 5.6.3 Inserting the sewing material and starting the automatic sequence Fig. 15: Inserting the sewing material ུ ཱ (1) - End stop (2) - End stop (3) - Foot pedal, left ི ཱི (4) - Foot pedal, right (5) - Main switch To start the automatic sequence: 1. Switch on the main switch (5). 2. Press the left foot pedal and hold in this position. 3. Place the sewing material at both rear end stops (1) and (2) and align it centered to the clamp. 4. Release the left foot pedal (3). 5.
Operation 5.6.5 Automatic sequence WARNING Caution: Risk of injury! Do not reach into the area of the turntable or the sewing/cutting heads during the automatic sequence. Fig. 16: Automatic sequence I (1) - Switch S1 To run the automatic sequence: 1. Press the right foot pedal. Sewing head is switched on, cutting head is switched on. The turntable is switched on, if the cutting head and sewing head are run on the switch. The turntable is turned counterclockwise. 2.
Operation 3. Clamp with sewing material is opened. The looper (2) moves to the material holder. Stacker process 4. The looper (2) pulls the material onto the rack (3). 5. The rack (3) lowers with the sewing material. 6. The looper (2) moves upwards. The rack (3) moves backwards. With this movement, the material is removed and thus conveyed into the magazine (4). 7. The rack (3) moves upwards and to the front into its starting position. Stopping/starting 8. The cutting head reaches the initiator S4 (6).
Operation Fig. 18: Swinging the sewing head in or out ཱི ཱ ི (1) - Magnetic roller shaft (2) - Side of the throat plate insert (3) - Throat plate insert (4) - Switching flag Swinging the To swing the sewing head out: sewing head out 1. Bring the needle to the "upper position". For this purpose, turn the hand wheel against the running direction until the needle is out of the material. 2. Pull the magnetic roller shaft (1) downwards completely. 3. Swing the sewing head out to the side. 4.
Operation 5.7.2 Swinging the cutting head in or out The cutting head can be swung out for service and maintenance works. WARNING Caution: Risk of injury! Switch off the main switch before swinging the cutting head in or out. Fig. 19: Swinging the cutting head in or out ཱ ི (1) - Magnetic roller shaft (2) - Guide piece (3) - Switching flag Swinging the To swing the cutter out: cutting head out 1. Pull the magnetic roller shaft (1) downwards completely. 2. Switch the cutter out to the side. 3.
Operation Swing the cutting To swing the cutter in: head in 1. Pull the magnetic roller shaft (1) downwards completely. 2. Turn the guide piece (2) clockwise against the force of the counterweight. 3. Swing the cutter into the turntable. When doing so, note: • The guide piece (2) must be pressed firmly against the fabric support surface. • The switching flag (3) must be in front of the magnetic roller. 4. Push the magnetic roller shaft (1) up. 5.
Operation WARNING Risk of injury due to flying particles. Cleaning with compressed air can cause injuries to the eyes or respiratory organs. NEVER blow particles towards other persons. A clean sewing unit provides protection from faults. Clean and maintain the areas listed below after the time specified in the table at the latest.
Operation 5.8.2 Lubricating WARNING Risk of injuries due to contact with oil. Contact with oil can cause irritation, rashes, allergies or skin injuries. ALWAYS avoid long-term contact with oil. ALWAYS thoroughly wash the affected areas if contact with oil occurs. ATTENTION Danger to the environment The handling and disposal of mineral oils is subject to legally prescribed regulations. Deliver the old oil to an authorized collection point. Protect your environment, by taking care not to spill any oil.
Operation Check the oil level at the sewing head 1. Check the oil level on the inspection glass (1) of the sewing head. 2. If the oil can be seen at the lower edge, the oil level is correct. 3. If no oil is to be seen, top up oil. Fig. 20: Inspection glass on the sewing head (1) - Inspection glass Topping up oil at the sewing head 1. Unscrew the inspection glass (2). 2. Raise the inspection glass (2) a little. 3. Top up oil - watching the inspection glass (1) continuously. 4.
Operation 5.9 Customer service Contacts for repairs or in the event of damage to the machine: Dürkopp Adler AG Potsdamer Str. 190 33719 Bielefeld Tel: +49 (0) 180 5 383 756 Fax +49 (0) 521 925 2594 E-mail: service@duerkopp-adler.com Internet: www.duerkopp-adler.com 38 Operating Instructions 971 Version 00.
Set-up 6 Set-up 6.1 Components of the sewing unit Fig. 22: Photo of the entire sewing unit The sewing unit comprises the following components on delivery: • Base machine • Sewing machine • Cutter • Material holder • Reel stand • Control box • Pedal with foot switches • Small parts in accessories Additional equipment: • Stacker • Air suction device Operating Instructions 971 Version 00.
Set-up 6.2 Installing the sewing head on the base machine WARNING Caution: Risk of injury! Install the sewing head with assistance or using suitable tools, as appropriate. Fig. 23: Installing the sewing head ཱ ི ཱི ུ ཱུ (1) - Elongated hole (2) - Clamping screw (3) - Clamping screw ཱུ (4) - Shaft (5) - Swivel arm part (6) - Throat plate insert To install the sewing head: 1. Bring both swivel arm parts (5) together and connect using the shaft (4). 2. Tighten securing nuts gently.
Set-up 3. Turn the shaft (4) until the distance X is the same at the top and the bottom. In this position, the distance between the throat plate insert (6) and the plastic plate of the material holder should be 0.2 mm. 4. Tighten the upper and lower slotted nuts only so far that the bearing has no play. 5. Secure the slotted nuts against twisting by turning down a lock washer lip. 6. Tighten clamping screws (2) and (3). Connecting lines 1.
Set-up To install the cutting head: 1. Install the cutting head as described in 6.2 Installing the sewing head on the base machine, pg. 40. When doing so, ensure that the distance between the guide piece (1) and the plastic plate (2) of the clamps is 0.3-0.5 mm. 2. To correct, loosen screws (3) and (4) and turn the spindle (5) accordingly. 3. Guide the power supply cord of the motor through the frame (fastening) to the control box. 4.
Set-up 6.5 Installing the reel stand The setup and position of the reel stand can be seen in the main photo. Note: • Insert the reel stand and tighten the nut under the retaining plate. • Reel stand holder and unwinding bracket must be above one another. 6.6 Aligning the sewing unit Correctly align the sewing unit as follows: 1. Place the plates with rubber disks (in the accessory pack) under the four feet. 2.
Set-up To connect the stacker to the sewing unit: Installing the 1. Release the clamping lever (1). stacker 2. Push the stacker onto the sewing unit and guide the fastening rail (3) into the bracket. 3. Set the clamping lever (1). Height of the 4. The stacker's support plate (2) should have a clearance of approx. 3 mm stacker to the underside of the material holder. 5. Loosen the screws (4) and adjust the height of the stacker. 6.
Set-up Fig. 27: Setting the motor circuit breaker (1) - Motor circuit breaker 6.8.2 Checking the direction of rotation To check the direction of rotation: 1. Switch on the main switch. 2. Switch the automatic sequence on and off again using the right foot pedal. 3. The turntable must turn counterclockwise. 4. If the direction of rotation is NOT correct, two phases in the connecting plug must be interchanged. 6.
Set-up Fig. 28: Connecting and adjusting the compressed air ཱ (1) - Rotary handle (2) - Hose Connect the compressed air as follows: 1. Connect hose (2) of the sewing unit to the compressed air supply (7 - 10 bar). 2. Set the pressure to 5 bar by raising the rotary handle (1) and turning appropriately. • Counterclockwise = to reduce pressure • Clockwise = to increase pressure 46 Operating Instructions 971 Version 00.
Starting up for the first time 7 Starting up for the first time Test run First perform a test run using the sewing material in order to test that the unit is working properly. Starting sewing for the first time 1. Start and stop the automatic sequence if a material holder is in front of the sewing head. 2. Thread the needle and hook threads. 3. Place the sewing material in the clamp at the sewing head; to do this, press down manually on the opening lever. 4. Sew the first stitches manually. 5.
Starting up for the first time 48 Operating Instructions 971 Version 00.
Disposal 8 Disposal The machine must not be disposed of in normal household waste. The machine must be disposed of in an appropriate and correct manner according to the national regulations. ATTENTION Risk of environmental damage due to incorrect disposal. Incorrect disposal of the machine can result in severe environmental damage. ALWAYS observe the legally prescribed regulations for disposal.
Disposal 50 Operating Instructions 971 Version 00.
Appendix 9 Appendix Operating Instructions 971 Version 00.
Appendix 52 Operating Instructions 971 Version 00.
Subject to design changes - Printed in Germany - © Dürkopp Adler AG - Operating Instructions - 0791 971740 EN - 00.0 - 03/2014 DÜRKOPP ADLER AG Potsdamer Str. 190 33719 Bielefeld Germany Phone +49 (0) 521 925 00 E-mail: service@duerkopp-adler.com www.duerkopp-adler.
