Dürkopp Adler M-TYPE H867 Service Manual
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Dürkopp Adler M-TYPE H867 Service Manual

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Summary of Contents for Dürkopp Adler M-TYPE H867

  • Page 1 H867 Service manual...
  • Page 2 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 of Dürkopp Adler AG in advance. Copyright © Dürkopp Adler AG - 2013 www.promelectroavtomat.ru...

  • Page 3: Table Of Contents

    Table of contents General information .................... 3 Scope of application of the manual ............... 3 Declaration of conformity..................3 Applicable documentation ..................3 Damage during transport..................3 Limitation of liability ....................3 Safety instructions ....................4 General safety instructions..................4 Layout of safety instructions..................
  • Page 4 Table of contents Aligning the needle bar linkage ............... 41 10.1 Moving the needle bar linkage sideways............. 41 10.2 Aligning the needle bar linkage in the sewing direction........43 Position of the hook and needle ..............45 11.1 Setting the hook side clearance ................45 11.2 Setting the loop stroke position ................

  • Page 5: General Information

    General information 1 General information 1.1 Scope of application of the manual This manual describes the setting and maintenance work on the H867 flatbed machine. It applies to all submodels.  The intended use and set-up is described in the operating manual.

  • Page 6: Safety Instructions

    Safety instructions 2 Safety instructions This section contains basic instructions for your safety. Read the instruc- tions carefully before setting up, programming, maintaining, or operating the machine. Make sure to follow the information included in the safety instructions. Failure to do this can result in serious injury and damage to the machine. 2.1 General safety instructions Only authorized persons may use the machine.

  • Page 7: Layout Of Safety Instructions

    Safety instructions Only qualified electrical specialists may perform work on electrical equip- ment. The connecting cable must have a power plug approved in the specific country. The power plug may only be connected to the power cable by a qualified specialist. Work on live components and equipment is prohibited.
  • Page 8 Safety instructions Examples of the layout of the safety instructions 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 hazard note looks like for a hazard that will result in serious injury or even death if not complied with.

  • Page 9: Environmental Protection Information

    Environmental protection information 3 Environmental protection information 3.1 General information on environmental protection Machines or machine parts that have reached the end of their service life must be disposed of correctly and in compliance with the legal require- ments concerning environmental protection. Use consumables sparingly and dispose of them correctly and in compli- ance with the legal requirements concerning environmental protection.

  • Page 10: Working Basis

    Working basis 4 Working basis 4.1 Symbols in the text The following symbols at the side and in the text show which type of infor- mation the text contains. Correct setting Specifies the correct setting. Faults Specifies the faults that can occur due to an incorrect setting. Cover Specifies which covers have to be removed in order to access the compo- nents going to be set.

  • Page 11: Sequence Of The Settings

    Working basis 4.2 Sequence of the settings Observe the The setting positions for the sewing machine are interdependent. sequence! Always adhere to the specified sequence for the individual setting steps. Always observe all information on requirements and following settings marked at the side with ATTENTION Machine damage due to incorrect sequence Always adhere to the working sequence specified in this man-...

  • Page 12: Removing The Covers

    Working basis 4.4 Removing the covers WARNING Risk of injury Crushing injuries from moving parts Switch the sewing machine off before you remove the cov- ers or refit them. In many types of setting work, you will have to remove the machine covers first in order to access the components.

  • Page 13: Removing And Fitting The Arm Cover

    Working basis 4.4.2 Removing and fitting the arm cover Figure 2: Removing and fitting the arm cover (1) - Arm cover screws stroke (2) - Left adjusting wheel for the sewing foot (3) - Arm cover Removing the arm cover 1.

  • Page 14: Removing And Fitting The Valve Cover

    Working basis Fitting the head cover 1. Fit the head cover (2). 2. Screw the head cover screws (1) firmly in place. 4.4.4 Removing and fitting the valve cover Figure 4: Removing and fitting the valve cover (1) - Valve cover screws (2) - Valve cover Removing the valve cover 1.

  • Page 15: Opening And Closing The Throat Plate Slide

    Working basis 4.4.5 Opening and closing the throat plate slide Figure 5: Opening and closing the throat plate slide (1) - Throat plate slide (3) - Clamping spring (2) - Throat plate Opening the throat plate slide 1. Press the clamping spring (3) downwards. 2.

  • Page 16: Removing And Inserting The Throat Plate

    Working basis 4.4.6 Removing and inserting the throat plate WARNING Risk of injury Switch the sewing machine off before you remove or insert the throat plate. Figure 6: Removing and inserting the throat plate (1) - Throat plate (2) - Throat plate screws Removing the throat plate 1.

  • Page 17: Removing And Inserting The Feed-Dog

    Working basis 4.4.7 Removing and inserting the feed-dog WARNING Risk of injury Switch the sewing machine off before you remove or insert the feed-dog. Figure 7: Removing and inserting the feed-dog (1) - Feed-dog (3) - Feed-dog screws (2) - Feed-dog carrier Removing the feed-dog 1.

  • Page 18: Surfaces On Shafts

    Working basis 4.5 Surfaces on shafts Screwing Figure 8: Surfaces on shafts components onto the surface (1) - Surface (2) - Shaft Some shafts have flat surfaces at those points where the components are screwed on. This strengthens the connection and setting work is made easier.

  • Page 19: Putting The Handwheel Into Position

    Working basis Figure 10: Locking the sewing machine in place (1) - Locking opening (3) - Locking peg (2) - Plug (4) - Groove Locking the machine in place 1. Remove the plug (2) from the locking opening (1). 2. Turn the handwheel until the appropriate groove (3) is in front of the locking opening (2): •...

  • Page 20: Setting The Handwheel Scale

    Setting the handwheel scale 5 Setting the handwheel scale WARNING Risk of injury Switch the sewing machine off before you check and set the position of the handwheel on the arm shaft. Checking the correct setting  Lock the machine in place in the handwheel zero position ( page 16): ...

  • Page 21: Positioning The Arm Shaft Crank

    Positioning the arm shaft crank 6 Positioning the arm shaft crank WARNING Risk of crushing Switch the sewing machine off before you check and set the position of the arm shaft crank. Correct setting The three setscrews (3) on the arm shaft crank (1) are seated completely on the surface.

  • Page 22: Positioning The Toothed Belt Wheels

    Positioning the toothed belt wheels 7 Positioning the toothed belt wheels The two toothed belt wheels must be positioned one on top of the other such that the toothed belt can run correctly. In short arm machines, the winder wheel is directly next to the upper toothed belt wheel and deter- mines its alignment.

  • Page 23: Upper Toothed Belt Wheel

    Positioning the toothed belt wheels 7.1 Upper toothed belt wheel WARNING Risk of crushing Switch the sewing machine off before you check and set the upper toothed belt wheel. Correct setting The two setscrews for the upper toothed belt wheel are seated completely on the surface.

  • Page 24: Lower Toothed Belt Wheel

    Positioning the toothed belt wheels 3. Turn the upper toothed belt wheel (1) such that the setscrews (2) are seated completely on the surface (5) of the arm shaft. Short arm 4. Additional setting step for short arm machines: machines Move the upper toothed belt wheel (1) to the side such that the distance to the winder wheel (3) is 0.8 mm.
  • Page 25 Positioning the toothed belt wheels Figure 15: Setting the lower toothed belt wheel (1) - Toothed belt (3) - Lower toothed belt wheel (2) - Retaining ring (4) - Setscrews Setting steps 1. Loosen the setscrews (4). 2. Turn the lower toothed belt wheel (3) such that the setscrews (4) are seated on the surface of the arm shaft.

  • Page 26: Setting The Stitch Length Adjusting Wheels

    Setting the stitch length adjusting wheels 8 Setting the stitch length adjusting wheels Figure 16: Stitch length adjusting wheels +/– +/– (1) - Key for the stitch length on the (2) - Upper stitch length adjusting wheel machine arm (3) - Lower stitch length adjusting wheel The two adjusting wheels on the machine column determine the stitch length.

  • Page 27: Setting The Upper Stitch Length Adjusting Wheel

    Setting the stitch length adjusting wheels 8.1 Setting the upper stitch length adjusting wheel WARNING Risk of crushing Switch the sewing machine off before you set the upper stitch length adjusting wheel. Correct setting Upper stitch length adjusting wheel to 0: ...
  • Page 28 Setting the stitch length adjusting wheels Figure 18: Setting the upper stitch length adjusting wheel - Part 2 (1) - Upper stitch length adjusting wheel (4) - Adjusting mark (2) - Screw (5) - Shaft (3) - Lower stitch length adjusting wheel (6) - Scale (7) - Frame for the stitch regulator gear (10) - Tension spring...

  • Page 29: Setting The Lower Stitch Length Adjusting Wheel

    Setting the stitch length adjusting wheels 8.2 Setting the lower stitch length adjusting wheel WARNING Increased risk of injury! The lower stitch length adjusting wheel has to be set when the machine is switched on, because a switchover is automatically made to the upper adjusting wheel when the machine is switched off.

  • Page 30: Stitch Length Limit

    Setting the stitch length adjusting wheels 8.3 Stitch length limit If during the sewing operation not all stitch lengths are available, then you do have the option to limit the maximum stitch length that can be set. WARNING Risk of crushing Switch off the sewing machine before setting the maximum stitch length limit.
  • Page 31 Setting the stitch length adjusting wheels Figure 20: Setting the stitch length limit (1) - Upper stitch length adjusting wheel (3) - Mark-off openings (2) - Screw Setting steps 1. Position the upper stitch length adjusting wheel (1) to 0. 2.

  • Page 32: Setting The Eccentric For The Forward And Backward Stitches

    Setting the stitch length adjusting wheels 8.4 Setting the eccentric for the forward and backward stitches WARNING Risk of crushing Switch off the sewing machine before setting the eccentric. Correct setting The forward and backward stitches are the same length. As a test, sew a bartack.

  • Page 33: Setting The Feed-Dog

    Setting the feed-dog 9 Setting the feed-dog The position and the movement of the feed-dog and needle bar have to be coordinated such that the needle pierces exactly in the center of the nee- dle hole of the feed-dog. Sequence First check the following settings: •...

  • Page 34: Moving The Feed-Dog

    Setting the feed-dog 9.1.1 Moving the feed-dog For minimal changes in position, it suffices to move the feed-dog on the feed-dog carrier. Cover  • Throat plate ( Section 4.4.6 Removing and inserting the throat plate, page 14) Figure 22: Moving the feed-dog on the feed-dog carrier (1) - Feed-dog (3) - Feed-dog screws (2) - Feed-dog carrier...

  • Page 35: Moving The Feed-Dog Carrier

    Setting the feed-dog 9.1.2 Moving the feed-dog carrier For the basic setting, the feed-dog carrier has to be moved both sideways and in the sewing direction. The feed-dog carrier is connected to the stitch regulator gear via the slid- ing shaft and can be moved on this shaft. Cover •...

  • Page 36: Aligning The Feed-Dog Carrier Together With The Stitch Regulator Gear

    Setting the feed-dog 9.1.3 Aligning the feed-dog carrier together with the stitch regulator gear If moving the feed-dog carrier does not suffice, the feed-dog carrier must be aligned together with the stitch regulator gear. Cover • Tilt the upper section backwards ...
  • Page 37 Setting the feed-dog Moving the stitch regulator gear sideways Figure 25: Moving the stitch regulator gear sideways - Part 1 (8) - Tension spring (11) - Pusher eccentric setscrews (9) - Screw opening (12) - Pusher eccentric (10) - Assembly frame setscrew 8.
  • Page 38 Setting the feed-dog Moving the feed-dog carrier in the sewing direction Figure 27: Moving the feed-dog carrier cross-line to the sewing direction (1) - Tie rod connecting screws (6) - Assembly frame screw (4) - Assembly frame (8) - Tension spring (5) - Plates (14) - Clamping screw 15.Position the upper stitch length adjusting wheel to 0.

  • Page 39: Setting The Feed-Dog Movement

    Setting the feed-dog 9.2 Setting the feed-dog movement The feed-dog moves in an elliptical cycle. To align this correctly, both the feed movement and the stroke height and stroke movement of the feed- dog have to be set. Sequence First check the following settings: ...

  • Page 40: Setting The Feed-Dog Height In The Top Dead Center

    Setting the feed-dog 5. Turn the pusher eccentric (2) such that the feed-dog and needle no longer move when the stitch adjustment lever (3) is pressed. 6. Tighten the pusher eccentric setscrews (1). 9.2.2 Setting the feed-dog height in the top dead center WARNING Risk of crushing Switch off the sewing machine before checking and setting the...

  • Page 41: Setting The Stroke Movement

    Setting the feed-dog 9.2.3 Setting the stroke movement WARNING Risk of crushing Switch the sewing machine off before you check and set the stroke movement of the feed-dog. Sequence First check the following settings:  • Feed-dog height ( Section 9.2.2 Setting the feed-dog height in the top dead center, page 38) Correct setting At the front dead center (handwheel position 90°) and at the rear dead...

  • Page 42: Setting The Compensating Weight

    Setting the feed-dog 9.2.4 Setting the compensating weight WARNING Risk of crushing Switch the sewing machine off before you check and set the position of the compensating weight. Correct setting Handwheel position 210°:  The setscrew for the compensating weight is parallel to the base plate. Cover •...

  • Page 43: Aligning The Needle Bar Linkage

    Aligning the needle bar linkage 10 Aligning the needle bar linkage Sequence First check the following settings: • A straight and undamaged needle has to be inserted  Betriebsanleitung Kap. 7.3 Nadel einsetzen und wechseln) Correct setting Upper stitch length adjusting wheel to 0: ...
  • Page 44 Aligning the needle bar linkage Figure 33: Aligning the thread lever sideways (5) - Arm shaft crank (7) - Thread lever (6) - Setscrews 3. Loosen the two setscrews (6) on the arm shaft crank (5). Important: Make sure that the setscrews stay on the surface. 4.

  • Page 45: Aligning The Needle Bar Linkage In The Sewing Direction

    Aligning the needle bar linkage 10.2 Aligning the needle bar linkage in the sewing direction WARNING Risk of injury Switch the sewing machine off before you check and set the position of the needle bar linkage in the sewing direction. Cover •...
  • Page 46 Aligning the needle bar linkage Sequence Then check the following settings: • Loop stroke position  Section 11.2 Setting the loop stroke position, page 47) Service manual H867 Version 00.0 - 08/2013...

  • Page 47: Position Of The Hook And Needle

    Position of the hook and needle 11 Position of the hook and needle 11.1 Setting the hook side clearance WARNING Risk of injury Switch off the sewing machine before checking and setting the hook side clearance. Sequence First check the following settings: •...
  • Page 48 Position of the hook and needle Figure 35: Setting the hook clearance (1) - Hook clamping ring (4) - Screws (2) - Setscrews (5) - Groove for the needle (3) - Hook support (6) - Hook tip  1. Lock the machine in place in the loop stroke position ( page 16).

  • Page 49: Setting The Loop Stroke Position

    Position of the hook and needle 11.2 Setting the loop stroke position WARNING Risk of injury Switch off the sewing machine before checking and setting the loop stroke position. The loop stroke is the path length from the lower dead center of the needle bar up to the position where the hook tip is exactly on the vertical center line of the groove for the needle.
  • Page 50 Position of the hook and needle Figure 37: Setting the loop stroke position (1) - Hook clamping ring (3) - Groove for the needle (2) - Setscrews (4) - Hook tip Setting steps  1. Lock the machine in place in the loop stroke position ( page 16).

  • Page 51: Adjusting The Needle Guard

    Position of the hook and needle 11.3 Adjusting the needle guard WARNING Risk of injury Switch off the sewing machine before checking and adjusting the needle guard. The needle guard prevents contact between needle and hook tip. Sequence First check the following settings: •...
  • Page 52 Position of the hook and needle Figure 38: Adjusting the needle guard (1) - Screw (3) - Needle (2) - Needle guard Setting steps 1. Turn the handwheel and check how far the needle guard pushes the needle away. 2. Turn the screw (1) on the needle guard (2) such that the needle guard (2) just pushes the needle (3) far away enough so that it cannot be touched by the hook tip: •...

  • Page 53: Setting The Needle Bar Height

    Position of the hook and needle 11.4 Setting the needle bar height WARNING Risk of injury by the needle point and moving parts Switch off the sewing machine before checking and setting the needle bar height. Sequence First check the following settings: •...
  • Page 54 Position of the hook and needle Figure 39: Setting the needle bar height (1) - Needle bar (3) - Groove for the needle (2) - Screw (4) - Hook tip Setting steps 1. Lock the machine in place in the loop stroke position ( ...

  • Page 55: Setting The Spool Housing Lifter

    Setting the spool housing lifter 12 Setting the spool housing lifter Figure 40: Spool housing lifter (1) - Spool housing (3) - Nose of the spool housing (2) - Spool housing lifter (4) - Recess in the throat plate The hook pulls the needle thread through between the nose of the spool housing (3) and the recess in the throat plate (4).

  • Page 56: Setting The Lifting Gap

    Setting the spool housing lifter 12.1 Setting the lifting gap WARNING Risk of injury Switch off the sewing machine before setting the width of the lifting gap. Sequence Always check the width of the lifting gap after making changes to the nee- dle thread size.

  • Page 57: Setting The Point In Time Of Opening

    Setting the spool housing lifter 12.2 Setting the point in time of opening WARNING Risk of injury Switch off the sewing machine before checking and setting the point in time of opening. Correct setting The spool housing lifter starts to open exactly at that point when the hook tip is located below the spool housing lifter after the loop is taken up.

  • Page 58: Sewing Feet

    Sewing feet 13 Sewing feet The two adjusting wheels (3) on the machine arm determine how high the presser foot (1) and feeding foot (2) are raised during the sewing process. The left adjusting wheel determines the normal sewing foot stroke. The right adjusting wheel determines the elevated sewing foot stroke.

  • Page 59: Setting An Even Sewing Foot Stroke

    Sewing feet 13.1 Setting an even sewing foot stroke WARNING Risk of injury Switch off the sewing machine before checking and setting the sewing foot stroke. Correct setting For sewing foot stroke 3, the presser foot and feeding foot are raised by the same height.

  • Page 60: Setting The Stroke Movement For The Feeding Foot

    Sewing feet 13.2 Setting the stroke movement for the feeding foot WARNING Risk of injury Switch the sewing machine off before you check and set the stroke movement for the feeding foot. For correct feed, the stroke movement for the feeding foot must be aligned to the stroke movement for the feed-dog.
  • Page 61 Sewing feet Figure 46: Setting the point in time for when the feeding foot touches down (1) - Stroke eccentric (3) - Setscrew (2) - Stroke eccentric setscrews Setting steps 1. Screw in the setscrew (3) so that a stroke is available. 2.

  • Page 62: Setting The Sewing Foot Pressure

    Sewing feet 13.3 Setting the sewing foot pressure The adjusting wheel at the top left of the machine arm determines the pressure for the sewing feet on the material to be sewn. The pressure can be adjusted continuously by turning the wheel. The correct pressure depends on the material to be sewn: •...

  • Page 63: Setting The Sewing Foot Lifting Height

    Sewing feet 13.4 Setting the sewing foot lifting height WARNING Increased risk of injury The sewing machine must remain switched on so that the sew- ing feet can be raised. Work very carefully when you check and set the lifting height for the sewing feet.

  • Page 64: Adjusting The Needle Thread Tension

    Adjusting the needle thread tension 14 Adjusting the needle thread tension 14.1 Setting the thread regulator WARNING Risk of injury by the needle point and moving parts Switch off the sewing machine before checking and setting the thread regulator. The thread regulator determines the tension applied to guide the needle thread around the hook.

  • Page 65: Setting The Thread Tensioning Spring

    Adjusting the needle thread tension 3. Move the thread regulator • To reduce the tension: push to the left • To increase the tension: push to the right 4. Tighten the regulator screw (2). 14.2 Setting the thread tensioning spring WARNING Risk of injury by the needle point and moving parts Switch off the sewing machine before checking and setting the...
  • Page 66 Adjusting the needle thread tension 3. Setting the spring tension Turn the tension disc (3): • Greater spring tension: Turn the disc to the left • Less spring tension: Turn the disc to the right Important: Do not twist the stop collar in doing so. 4.

  • Page 67: Winder

    Winder 15 Winder 15.1 Position of the winder wheel in long arm machines Long arm Long arm machines have the winder in the center of the machine arm. machines The winder wheel is therefore not aligned on the upper toothed belt wheel in long arm machines, but rather on the driver wheel in the machine arm.

  • Page 68: Setting The Winder

    Winder 15.2 Setting the winder WARNING Risk of injury Switch off the sewing machine before setting the winder. Correct setting The winder wheel runs smoothly and without axial play. The winding process will stop automatically when the required filling quan- tity of the bobbin is reached.
  • Page 69 Winder 3. Turn the winder flap screw (2): • Arms closer together: Turn the screw to the left • Arms further apart from each other: Turn the screw to the right 4. Put the completely filled bobbin onto the winder. 5.
  • Page 70 Winder Figure 54: Setting the winder spacing (3) - Winder flap (11) - Tear-off knife (5) - Engaging clamp (12) - Winder spindle (6) - Winder wheel (13) - Right-hand screw hole (14) - Locking disc Setting the winder spacing 10.Turn the winder spindle (12) such that the tear-off knife (11) is at the top right and is facing the right-hand screw hole (13).

  • Page 71: Setting The Hook Thread Guide

    Winder Installing the winder 16.Fit the winder on the machine arm. 17.Screw the winder screws (1) firmly in place. 15.3 Setting the hook thread guide The position of the hook thread guide determines how the thread is wound onto the winder. Correct setting The thread is wound on evenly over the entire width of the bobbin.

  • Page 72: Thread Cutter

    Thread cutter 16 Thread cutter 16.1 Setting the position of the thread-pulling knife 16.1.1 Setting the height of the thread-pulling knife WARNING Risk of injury Switch the sewing machine off before you check and set the height of the thread-pulling knife. The height of the thread-pulling knife is factory-set such that the distance (5) between the upper edge of the knife carrier (4) and the hook bearing screw-on surface (3) is 10.7+0.5 mm.

  • Page 73: Setting The Cutoff Curve

    Thread cutter 5. Tighten the thread-pulling knife (2) onto the knife carrier (4) using the fastening screw (6). 16.2 Setting the cutoff curve WARNING Risk of injury Switch off the sewing machine before aligning the thread-pull- ing knife sideways. Correct setting The control cam (4) makes direct contact with the hook clamping ring (1).
  • Page 74 Thread cutter 7. Move the control cam (4) such that the distance between its widest extent (6) and the roller (3) is 0.1 mm at most. 8. Tighten the control cam setscrews (5). 9. Loosen the clamping screw (8) on the actuating lever (7). Figure 59: Aligning the thread-pulling knife sideways - Part 2 (1) - Hook clamping ring (6) - Widest extent...

  • Page 75: Setting The Cutting Pressure

    Thread cutter 16.3 Setting the cutting pressure WARNING Risk of injury Switch the sewing machine off before you check and set the counter-blade and the lower thread clamp. The shape of the thread-pulling knife automatically creates the required cutting pressure as soon as the thread-pulling knife and counter-blade make contact.

  • Page 76: Setting The Point In Time For Cutting

    Thread cutter Important: After doing this, check the position of the knives, since the counter-blade can easily become warped when the screw is being tightened. 16.4 Setting the point in time for cutting WARNING Risk of injury Switch off the sewing machine before checking and setting the point in time for cutting.
  • Page 77 Thread cutter 6. Turn the control cam (3) such that the roller (1) runs up at the contour of control cam (3) and the widest extent of the control cam is at hand- wheel position 60° at the highest point. 7.

  • Page 78: Setting The Potentiometer

    Setting the potentiometer 17 Setting the potentiometer WARNING Increased risk of injury The machine remains switched on when the potentiometer is set. Carry out all work with extreme caution. The potentiometer adjusts the number of stitches to the set sewing foot stroke and reduces the number of stitches if the sewing foot stroke is too much.
  • Page 79 Setting the potentiometer Figure 63: Setting the potentiometer (1) - Connecting clamp setscrews (3) - Setscrew for the setting shaft (2) - Connecting clamp for lifting cylinder (4) - Potentiometer 6. Check whether the lifting gear plates are flush. If the plates are not flush: 7.Loosen the connecting clamp setscrews (1).

  • Page 80: Setting The Safety Snap-On Coupling

    Setting the safety snap-on coupling 18 Setting the safety snap-on coupling The safety snap-on coupling disengages in the event of the thread jam- ming and thus prevents the hook from being misadjusted or damaged. 18.1 Attaching the safety snap-on coupling WARNING Risk of crushing Switch off the sewing machine before you reattach the safety...

  • Page 81: Setting The Torque

    Setting the safety snap-on coupling 18.2 Setting the torque WARNING Risk of crushing Switch off the sewing machine before checking and setting the safety snap-on coupling. Correct setting The machine is set at the factory such that the torque is 8 Nm when the marking point (6) is exactly above the setting slot (5).

  • Page 82: Lubrication

    Lubrication 19 Lubrication WARNING Skin injuries due to contact with oil Oil can cause a rash if it comes into contact with the skin. Avoid any skin contact with the oil. If oil gets on your skin, wash the affected skin areas thoroughly. ENVIRONMENTAL PROTECTION Risk of environmental damage from oil.

  • Page 83: Lubrication Of The Upper Part Of The Machine

    Lubrication 19.1 Lubrication of the upper part of the machine The central oil lubrication system supplies all bearing positions automati- cally with oil from the reservoir. Correct setting The oil level is between the minimum level marking and the maximum level marking.

  • Page 84: Hook Lubrication

    Lubrication 19.2 Hook lubrication WARNING Increased risk of injury When holding the blotting paper, make sure that you do not reach into the hook or underneath the area of the needle and sewing feet. The approved amount of oil for hook lubrication is a factory specification. Hold a sheet of blotting paper near to the hook when sewing.

  • Page 85: Maintenance Work

    Maintenance work 20 Maintenance work 20.1 Pneumatic system 20.1.1 Setting the operating pressure: Correct setting The operating pressure is 6 bar. Check the pressure on the pressure indicator every day. The pressure must not deviate from the reference pressure by more than 1 bar. ATTENTION Machine damage due to incorrect pressure An incorrect pressure can cause damage to the machine.

  • Page 86: Draining The Water Condensation

    Maintenance work 20.1.2 Draining the water condensation Water condensation may accumulate in the water separator of the pres- sure controller. Correct setting The water condensation must not rise up to the level of the filter element (1). Check the water level in the water separator on a daily basis. ATTENTION Machine damage due to too much water Too much water can cause damage to the machine.

  • Page 87: Cleaning The Filter Element

    Maintenance work 20.1.3 Cleaning the filter element WARNING Risk of injury Switch off the machine at the main power switch and discon- nect it from the pneumatic network before you clean the filter element. Figure 70: Cleaning the filter element (1) - Filter element (3) - Drain screw (2) - Water separator...

  • Page 88: Cleaning Work

    Maintenance work 20.2 Cleaning work 20.2.1 Cleaning the machine Sewing dust and thread remains must be removed every 8 operating hours using a compressed-air pistol or a brush. When very fluffy material is used for sewing, the machine must be cleaned more frequently. WARNING Risk of injury Switch off the machine at the main power switch before starting...

  • Page 89: Cleaning The Motor Fan Sieve

    Maintenance work Attention Damage to the paintwork due to solvent-based cleaners Solvent-based cleaners damage the paintwork of the machine. Use only solvent-free substances for cleaning the machine. 20.2.2 Cleaning the motor fan sieve The motor fan sieve must be cleaned once a month using a compressed- air pistol.

  • Page 90: Checking The Toothed Belt

    Maintenance work 20.3 Checking the toothed belt WARNING Risk of injury Switch off the machine at the main power switch before check- ing the condition of the toothed belt. The condition of the toothed belt must be checked once a month. A damaged toothed belt must be replaced immediately.
  • Page 92 DÜRKOPP ADLER AG Potsdamer Str. 190 33719 Bielefeld Germany Phone +49 (0) 521 925 00 E-Mail: service@duerkopp-adler.com www.duerkopp-adler.com...

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