DURKOPP ADLER 767 Service Instructions Manual
  1. Manuals
  2. Brands
  3. DURKOPP ADLER Manuals
  4. Sewing Machine
  5. 767 -
  6. Service instructions manual
DURKOPP ADLER 767 Service Instructions Manual

DURKOPP ADLER 767 Service Instructions Manual

Hide thumbs Also See for 767:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instruction Manual, Instruction and Installation Manual
Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 521 / 9 25-00
Ausgabe / Edition:
Änderungsindex
10/2008
Rev. index: 02.0
Spezialnähmaschine
•
Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com
Printed in Federal Republic of Germany
767
Serviceanleitung

Service Instructions

Teile-Nr./Part.-No.:
0791 767651
D
GB

Advertisement

Table of Contents
loading

Related Manuals for DURKOPP ADLER 767

Summary of Contents for DURKOPP ADLER 767

  • Page 1: Service Instructions

    Spezialnähmaschine Serviceanleitung Service Instructions 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: Änderungsindex Teile-Nr./Part.-No.: 10/2008 Rev.
  • 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: General Safety Instructions

    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.

  • Page 5: Table Of Contents

    Index Page: Service Instructions Class 767 General notes Gauge kit........... Position of the lower toothed belt wheel .
  • Page 6 Index Page: Bobbin winder ..........Lubrication 12.1 General hints concerning the oil lubrication .

  • Page 7: General Notes

    General notes ATTENTION ! The operations described in the service instructions must only be executed by qualified staff or correspondingly instructed persons respectively! Caution: Danger of injury ! In case of repair, alteration or maintenance work switch off main switch and disconnect the machine from the pneumatic supply system.

  • Page 8: Position Of The Lower Toothed Belt Wheel

    Position of the lower toothed belt wheel Caution: Danger of injury ! Switch off main switch. Check and adjust the position of the lower toothed belt wheel only when the sewing machine is switched off. Standard checking The lower toothed belt wheel 5 is axially and radially fixed on shaft 6 via core pin 3.

  • Page 9: Zero Position, Feed With Equipment

    Zero position, feed with equipment Zero position adjustment (position of the stitch regulator link) Caution: Danger of injury ! Switch off main switch. Check and adjust zero position of the stitch regulator only when the sewing machine is switched off. Standard checking If stitch length “0”...

  • Page 10: Bottom Feed Adjustment

    Bottom feed adjustment 3.2.1 Position of the feed-dog in the throat plate cutout 2 12 8 13 Caution: Danger of injury ! Switch off main switch. Check and adjust position of the feed-dog only when the sewing machine is switched off. Standard checking Lateral position: The feed-dog 2 must be in the centre of the throat plate cutout 1.

  • Page 11: Height Of The Feed-Dog

    3.2.2 Height of the feed-dog Caution: Danger of injury ! Switch off main switch. Check and adjust height of the feed-dog only when the sewing machine is switched off. Standard checking Sewing machines without feed dog stroke: The feed dog 6 should have the same height as the needle plate 7 in its highest position.

  • Page 12: Lifting Motion Of The Feed-Dog

    3.2.3 Lifting motion of the feed-dog Caution: Danger of injury ! Switch off main switch. Check and adjust lifting motion of the feed-dog only when sewing machine is switched off. Standard checking At needle position “down” the feed-dog must have reached its highest position.

  • Page 13: Feeding Motion Of The Feed-Dog

    3.2.4 Feeding motion of the feed-dog Caution: Danger of injury ! Switch off main switch. Check and adjust feeding motion of the feed-dog only when sewing machine is switched off. Standard checking When actuating the stitch regulator shaft with the max. stitch length, the needle should not move when reaching its bottom dead center or 0.7 mm before.

  • Page 14: Synchronous Run Of Needle Feed And Bottom Feed

    3.2.5 Synchronous run of needle feed and bottom feed The motion of the feeding shaft 3 is transmitted via block 2 and tie rod 5 to lever 6 and from there via tie rod 3 and lever 2 to needle bar wing 1. Caution: Danger of injury ! Switch off main switch.
  • Page 15 Notes:...

  • Page 17: Needle Bar Wing

    Needle bar wing Preconditions for the positioning of the needle bar – Position of feed-dog in the throat plate cutout is adjusted correctly (see chapter 3.2.1). – Synchronous run of needle feed and bottom feed is adjusted correctly (see chapter 3.2.5). 3.3.1 Lateral position of the needle bar wing Caution: Danger of injury !

  • Page 18: Position Of The Needle Bar Wing In Feed Direction

    3.3.2 Position of the needle bar wing in feed direction Caution: Danger of injury ! Switch off main switch. Check and adjust position of needle bar wing in feed direction only when sewing machine is switched off. Standard checking At stitch length “0" the needle must stick in the centre of the needle hole of the feed-dog.

  • Page 19: Hook Settings

    Hook settings 0,5 mm Looping stroke Caution: Danger of injury ! Switch off main switch. Check and adjust looping stroke only when sewing machine is switched off. Standard checking The looping stroke (2 mm) is the way of the needle bar from the bottom dead centre to the point where the hook tip 11 is at the level of the middle of the needle.

  • Page 20: Needle Bar Height

    Needle bar height Caution: Danger of injury ! Switch off main switch. Check and adjust needle bar height only when sewing machine is switched off. Standard checking In looping stroke position the hook tip must be at the level of the middle of the needle hollow groove 3.

  • Page 21: Distance Between Hook And Needle

    Distance between hook and needle Caution: Danger of injury ! Switch off main switch. Check and adjust distance between hook and needle only when sewing machine is switched off. Standard checking In looping stroke position the distance between hook tip 6 and the needle hollow groove must amount to max.

  • Page 22: Hook Protection

    Hook protection The hook protection 1 avoids a contact between needle and hook tip. Caution: Danger of injury ! Switch off main switch. Check and adjust the position of the hook protection only when the sewing machine is switched off. Standard checking In looping stroke position the needle must abut on the hook protection 1 without being displaced.

  • Page 23: Clearance In The Claw Clutch

    Clearance in the claw clutch 0,5mm Caution: Danger of injury ! Switch off main switch. Check and adjust clearance in the claw clutch only when sewing machine is switched off. Standard checking The lateral clearance between the clutch claws 5 and 6 must amount to 0.5 mm.

  • Page 24: Stitch Regulator Settings

    Stitch regulator Limitation of maximum stitch length Caution: Danger of injury ! Switch off main switch. Check and adjust limitation of maximum stitch length only when sewing machine is switched off. Standard checking Depending on the sewing equipment being used, the stitch length setting must be limited to 6 mm or 9 mm.

  • Page 25: Limitation Of The Max. Stitch Length For Machines Equipped With 2Nd Stitch Length As Standard

    Limitation of the max. stitch length for machines equipped with 2nd stitch length as standard Depending on the used sewing equipment the stitch length adjustment must be limited to 6 or 9 mm. This adjustment has to be made on the setting wheel for the long stitch length (upper setting wheel) only.
  • Page 26 Correction – Unhook the spring at the stitch regulator lever. – Screw off screw 3 and pull setting wheel 2 off. – Turn the spindle 7 to the right with a 10 mm open-end wrench until block 10 has the least possible clearance (see item 3.1). ATTENTION ! Do not turn the spindle 7 to the right too far.

  • Page 27: Operating The Stitch Adjustments For Machines Equipped With 2Nd Stitch Length As Standard

    Operating the stitch adjustments for machines equipped with 2nd stitch length as standard Both stitch lengths are defined by means of the two setting wheels 1 and 2. – Set the longer stitch length with the upper setting wheel. – Set the shorter stitch length with the lower setting wheel.

  • Page 28: Bobbin Case Opening Settings

    Bobbin case opening settings Bobbin case opening The thread lever must pull the thread through between the bobbin case and its holder. In order for this passing through of the thread to occur unhindered, the bobbin case must be opened at this instant. This allows the desired seam pattern to be achieved with the lowest possible thread tension.

  • Page 29: Lifting Course

    6.1.2 Lifting course Caution: Danger of Injury ! Switch off main switch. Adjust lifting course only when sewing machine is switched off. Standard checking Lifting finger 4 must lift bobbin case 3 in such a way that the thread can slip laterally between bobbin case lug 5 and the gap of the throat plate without being hindered.

  • Page 30: Upper Feed Settings Altering The Upper Feed

    Upper feed settings Altering the upper feed Mechanical sewing foot stroke adjustment The foot stroke can be adjusted to match the thickness of the material during the sewing through the setting wheel 7 on the arm cover. The joint for the sewing foot stroke adjustment is provided with an eccentric.

  • Page 31: Setting Range Of The Sewing Foot Stroke Adjustment

    7.1.2 Setting range of the sewing foot stroke adjustment Caution: Danger of injury ! Switch off main switch. Check and adjust setting range of sewing foot stroke adjustment only when sewing machine is switched off. Standard checking If the setting wheel 5 for the sewing foot stroke adjustment is in position “min.”, the minimum sewing foot stroke of 1 mm or 1.6 mm respectively must be effective.

  • Page 32: Position Of The Lever For Transmitting The Setting Wheel Motion

    7.1.3 Position of the lever for transmitting the setting wheel motion Caution: Danger of injury ! Switch off main switch. Check and adjust position of the lever only when sewing machine is switched off. Standard checking Check without setting gauge: The distance of ball stud 1 to the exterior surface of the casing wall must amount to 78 mm.

  • Page 33: Feeding Foot And Presser Foot

    Feeding Foot and Presser Foot 7.2.1 Feeding foot and presser foot stroke Caution: Danger of injury ! Switch off main switch. Check and adjust feeding foot and presser foot stroke only when sewing machine is switched off. Standard checking The strokes of feeding foot 1 and presser foot 2 must be equally high, if the minimum sewing foot stroke is set.

  • Page 34: Lifting Motion Of The Feeding Foot

    7.2.2 Stroke motion of the feeding foot Caution: Danger of injury ! Switch off main switch. Check and adjust stroke motion of the feeding foot only when sewing machine is switched off. Adjustment preconditions – Feeding foot and presser foot stroke correctly adjusted –...

  • Page 35: Potentiometer For Automatic Speed Limitation

    Potentiometer for Automatic Speed Limitation The FA-Version sewing machine is equipped with a potentiometer for speed limitation in case of higher strokes. The potentiometer 3 is mechanically connected with the setting wheel on the arm cover via shaft 2, lever 1 and ball stud. The control recognizes the set sewing foot stroke via potentiometer 3 and adapts the speed automatically.
  • Page 36 Correction If the mentioned values are not correct, the position of potentiometer 1 has to be readjusted. – Loosen core pin 4. – Adjust shaft of potentiometer 1 in such a way that the corresponding resistance is achieved. – Push potentiometer completely in the drill-hole of setting shaft 2. –...
  • Page 37 Note:...

  • Page 38: Electropneumatic Sewing Foot Lift

    Sewing foot height and sewing foot lift Electropneumatic sewing foot lift The sewing machine is equipped with a standard electropneumatic sewing foot lift (FLP). By pedalling backwards the sewing feet are pneumatically lifted via cylinder 7 (e.g. for corner sewing). For lifting the sewing feet the piston rod of cylinder 7 extends.
  • Page 40 Correction Caution: Danger of injury ! Switch off main switch. Adjust height of the electropneumatically lifted sewing feet only when sewing machine is switched off. – Turn handwheel until both feet rest on the throat plate. – Alter screw 8 correspondingly in order to reach the lift stroke of 16 mm.

  • Page 41: Sewing Foot Locking

    Sewing Foot Locking The lifted sewing feet are locked in position “up” by lifting lever 1 (e.g. for winding the bobbin thread or for changing the sewing feet). Caution: Danger of injury ! Switch off main switch. Check and adjust height of the locked sewing feet only when sewing machine is switched off.

  • Page 42: Lift Limitation

    Lift Limitation Standard checking The stopper screw 2 limits the lift when the knee lever is pressed all the way to the right. This prevents a collision between the sewing feet and the needle bar. – Lift the sewing foot using the knee lever. –...

  • Page 43: Thread Tension Opening

    Thread Tension Lift Thread Tension Opening Standard checking The thread tension is opened, – when the knee lever is operated. – when the sewing feet are raised with the pedal by sewing machines with “ RAP ” and “ FLP ”. –...

  • Page 44: Thread Tension Lift

    Thread Tension Lift Standard checking Spring travel: The thread controller spring 4 must keep the needle thread under a minor tension from the raised position of the thread lever to the moment the needle’s eye penetrates the material. The thread controller spring 4 must abut on the stop not before the eye of the needle has penetrated the material.

  • Page 45: Safety Clutch

    Safety Clutch 10.1 Engage disengaged safety clutch The standard safety clutch 2 in the lower toothed belt wheel protects the hook from being displaced or damaged in case of thread jamming in the hook path. When the hook is blocked, the safety clutch 2 must come out. Caution: Danger of injury ! Switch off main switch.

  • Page 46: Adjust Transmittable Torque

    10.2 Adjust Transmittable Torque Standard checking The torque transmittable from safety clutch 4 is adjusted by the supplier by means of a torque spanner. ATTENTION ! Increase the torque adjusted by the supplier only in case of a frequent disengagement of safety clutch 4 when processing heavy-weight material.

  • Page 47: Bobbin Winder

    Bobbin Winder Standard checking The bobbin winder must stop automatically when the bobbin is filled up to approx. 0.5 mm from its edge. Caution: Danger of injury ! Switch off main switch. Adjust bobbin capacity only when sewing machine is switched off. Correction Minor alterations of the bobbin capacity: Adjust setting screw 1 at the release lever 2.

  • Page 48: Lubrication

    Lubrication bis Juli 2003 antil July 2003 Oil feed to the sewing head The spriral grooves in the hook drive shaft 13 feed the oil from the pan through the pipe 23 to the basin 3 in the sewing head. The check valve 24 in this pipe prevents the oil from running back when the machine is idle.
  • Page 49 Oil return from the hook box to the oilpan The oil is conducted to the equalizing reservoir 19 from the hook box via pipe 18. Via the pipe 21 with the sintered metal filter 20, the pump 12 on the hook shaft sucks oil back into the oilpan again. At the same time the pump also sucks the oil out of the oilpan via the oil return felt 16 and the pipe 17.

  • Page 50: General Hints Concerning The Oil Lubrication

    12.1 General hints concerning the oil lubrication Caution: Danger of injury ! Switch off main switch. All operations on oil lubrication components are to be effected only when sewing machine is switched off. Carry out adjusting operations and functional tests of the running machine only with utmost caution.

  • Page 51: Hook Lubrication

    12.2 Hook Lubrication Caution Risk of Injury ! Turn the main switch off. Set the hook lubrication only with the sewing machine turned off. Conduct function tests with the machine running only with the utmost caution. – The hook should be lubricated with a small quantity of oil. –...

  • Page 52: Change Oil

    12.3 Change Oil ATTENTION ! The oil has to be changed after the first 500 operating hours. Thereafter it has to be changed every two years, independent of the number of operating hours. Oil the special sewing machine exclusively with lubricating oil DA-10 or an equivalent oil with the following specification: - Viscosity at 40°...

  • Page 53: Oil Level In The Fluid Reservoir

    12.4 Oil level in the fluid reservoir A considerable rise of the oil level in the fluid reservoir 1 or an oil overflow can be caused by the following: – Wrong position of the fluid reservoir 1 – Blockage of the sintered metal filter 2 –...
  • Page 54 4. Malfunction of the pump – Remove one locking ring at bolt 8. – Pull out bolt 8. – Loosen both core pins 5 at the stroke eccentric. – Push stroke eccentric 4 to the right. – Swivel tie rod 1 upwards and push it to the right. –...

  • Page 55: Mounting Of The Head Cover

    12.5 Mounting of the head cover During operation of the sewing machine, oil is also spun off against the inside of the head cover. In order to prevent this oil from running out of the head, the felt pad 2 is glued onto the head cover to conduct the oil to the recirculation felt 4.

  • Page 56: Thread Trimmer (Class 767-Fa

    Thread trimmer (Class 767-FA-...) 13.1 Function sequence When, during sewing, the pedal is stepped completely back in order to trigger the trimming sequence, then the needle is positioned in the 1. position. The drive stops briefly. The magnet presses the roller lever 1 against the lowest point of the guide curve 2.

  • Page 57: Thread Pulling Knife

    13.2 Thread pulling knife Standard checking The thread pulling knife is to be set sideways so that it swings past at a safe clearance to the nose of the bobbin case. The thread pulling knife may not collide with the bobbin case. The height of the thread pulling knife is to be set so that it swings as close as possible over the bobbin without touching it.

  • Page 58: Counter Knife And Underthread Clamp

    13.3 Counter knife and underthread clamp “X” Standard checking The clearance between the blade of the counter knife 1 and the slider guide 3 should be “X” mm. (x = 26 mm with a 26 mm q bobbin / x = 25 mm with a 32 mm q bobbin) The knives should securely cut with the least possible pressure of the counter knife on the thread pulling knife 2.

  • Page 59: Guide Curve, Slewing Range Of The Thread Pulling Knife And Roller Lever

    13.4 Guide curve, slewing range of the thread pulling knife and roller lever Standard checking The guide curve 4 determines the movement sequence of the thread pulling knife. The setting of the swung-out thread pulling knife results when the roller lever 2 touches on the lowest point of the guide curve.

  • Page 60: Short Thread Trimmer (Kfa-373)

    Short thread trimmer (KFA - 373) Only possible with the Efka Sewing drive DC1600 DA82GA. – Check the EPROM version For the present kit is the use of the EPROM from Version 3312 “F” to “J” or from 3316 “A” required. EPROM check Parameter 179 14.1 Parameter settings Parameter 136...
  • Page 61 – Screw on and tighten the adjustment discs on the axle of the holder 2. Hint: The adjustment discs set the height of the thread-pulling knife 12 – The rest of the clampings on the axle of the holder 2 will be tightened later.
  • Page 62 14.2.2 Align the trimmer disc with the gauge 5. Set the piston rod of the magnet 10. – Loosen the block 7 on the piston rod of the magnet 10. – Twist the piston rod completely on the block 7 and tighten it. 6.

  • Page 63: Short Thread Trimmer For Oversized Hook

    14.3 Short thread trimmer oversized hook Only possible with the Efka Sewing drive DC1600 DA82GA. Check the EPROM version For the present kit is the use of the EPROM from Version 3312 “F” to “J” or from 3316 “A” required. EPROM check Parameter 179 14.3.1 Parameter settings...
  • Page 64 – Screw on and tighten the adjustment discs on the axle of the holder 2. Hint: The adjustment discs set the height of the thread-pulling knife 12, yet the thread-pulling knife holder 2 should be slightly movable. – The rest of the clampings on the axle of the holder 2 will be tightened later.
  • Page 65 5. Set the piston rod of the magnet 10. – Loosen the block 7 on the piston rod of the magnet 10. – Twist the piston rod completely on the block 7 and tighten it. 6. Set the thread-pulling knife 12 with the gauge Y (Part-No.

  • Page 66: Adjust The Thread Cutting Stitch Before Thread Cutting

    14.4 Adjust the thread cutting stitch before thread cutting Standard checking The length of the last stitch before thread cutting can be adjusted. Thus, the lengths of the cut-off needle and bobbin threads can be influenced. Both thread ends should have almost the same length. Correction The length of the thread cutting stitch is influenced by means of screw 1.

  • Page 67: Thread Clamp (Thread Feeding Device)

    14.5 Thread clamp (Thread feeding device) With the thread clamp 2 and the relevant electronic components, the thread is pulled downward and swallowed up while sewing on. In order to avoid a threadbreakage (the thread can get jammed between the sewing foot and material) the sewing foot is briefly relieved.

  • Page 68: Short Thread Trimmer (Kfa-573)

    Short thread trimmer (KFA-573) Can only be used with Efka sewing drive DC1600 DA82GA. – Check EPROM version For the present kit is the use of the EPROM from Version 3312 “F” to “J” or from 3316 “A” required. EPROM query Parameter 179 15.1 Parameter settings See parameter sheet 9800 130014 PB53.
  • Page 69 2. Positioning the counter-knife 3, the spring clip 4 and the thread pulling knife 12. – Screw the throat plate off, loosen the fastening screws of counter-knife 3. Screw the gauge W (part no. 0767 290070) on the centerpiece – support 15.
  • Page 70 3. Aligning the cam disc 8 with the gauge 6 (part no. 0767 290050) – Move the thread lever in top position. (see opposite illustration). – Put the gauge 6 over the loosened cam disc 8 on the roller 11. –...
  • Page 71 5. Positioning the thread pulling knife in cutting position – Make the roller 11 abut on the cam disc 8. Turn the handwheel until the roller 11 abuts on the highest point of the cam disc 8. Note: At the highest point the roller 11 has the furthest distance from the rotation axis of the cam disc.
  • Page 72 6. Adjusting the roller 11 as to the cam disc 8. – Turn the handwheel until the roller 11 abuts on the highest point of the cam disc 8. Note: At the highest point the roller 11 has the furthest distance from the rotation axis of the cam disc.

  • Page 73: Setting The Thread Trimming Stitch For The Short Thread Trimmer

    15.3 Setting the thread trimming stitch for the short thread trimmer Standard checking The length of the last stitch before thread trimming can be set. Thus, the length of the cut needle and hook thread is influenced. These two threads should preferably be equally long. The last stitch of the short thread trimmer should be approx.

  • Page 74: Thread Clamp (Thread Pulling Device)

    15.4 Thread clamp (thread pulling device) With the thread clamp 2 and the corresponding electronics the needle thread is drawn downwards and a loop is formed at the sewing start. In order that the thread does not break (it may be clamped between foot and fabric) the sewing foot is released for a short time.

  • Page 75: Synchronizer

    Synchronizer The setting of the synchronizer is necessary when the synchronizer is mounted on the handwheel during installation of the machine or when a replacement of the synchronizer occurs. The setting of the digital synchronizer is described in the Chapter 16.1 (Positioning).

  • Page 76: Controls And Control Panel Efka

    Controls and control panel EFKA In these Service Instructions only the most important items in the controls are described. Please find the comprehensive description in the enclosed operating instructions of the motor manufacturer. 17.1 Positioning 17.1.1 Defining the positions Reference position The reference position is the starting position for all other positions.
  • Page 77 17.1.3 Adjusting the positions with the V810 control panel Entering the technician-level code number – Turn off the main switch. – All plugs must be plugged in to the sewing-drive control. – Press and hold down the “P” key. – Turn on the main switch.
  • Page 78 17.1.4 Adjusting the positions with the V820 control panel Entering the technician-level code number – Turn off the main switch. – All plugs must be plugged in to the sewing-drive control. – Press and hold down the “P” key. – Turn on the main switch.

  • Page 79: Setting The Parameters Values With The V810 Control Panel

    17.2 Setting parameter values with the V810 control panel Changing technician-level parameter values Entering the technician-level code number – Turn off the main switch. – All plugs must be plugged in to the sewing-drive control. – Press and hold down the “P” key. –...
  • Page 80 17.2.1 Setting parameter values with the V820 control panel Changing technician-level parameter values Entering the technician-level code number – Turn off the main switch. – All plugs must be plugged in to the sewing-drive control. – Press and hold down the “P” key. –...

  • Page 81: Master Reset

    17.3 Master reset A master reset resets all parameter values to their factory settings. – Turn off the main switch. – Press the “P” key and turn on the main switch. – Release the “P” key.. – Enter code no. “1907”. Press the “E”...

  • Page 82: Automatic Speed Adaptation

    Automatic speed adaptation 18.1 General The “Speedomat” function allows a speed limitation dependent on the set stroke height (at setting wheel 1) up to 21 steps. The current stroke height value is indicated to the sewing drive control by the position of the potentiometer (10k Ohm with 60°...

  • Page 83: Setting The "Speedomat" Function

    18.2 Setting the “Speedomat” function For the “Speedomat” function the following values must be set. The maximum speed of the machine at minimum stroke height is – set with the parameter F-111 (n2 - see parameter sheet). The speed at maximum stroke height is set with the parameter –...
  • Page 84 – Press key “>>”. 12 . 3160 The current Speedomat step (e.g. 12) and the matching speed limitation (e.g. 3160) are indicated. – Set new value for the lower speed breaking point (e.g. 17) by 17 . 2430 means of the potentiometer, e.g. by turning the setting wheel. –...

  • Page 85: Optional Equipment

    Optional equipment 19.1 RAP 13 - 2 Electro-pneumatic seam bartacking For the following subclasses: 767-FA-273 and 767-VF-373 Sewing machines with electro-pneumatic seam bartacking are equipped with the cylinder 2. The cylinder brings the stitch regulator into the position for the reverse sewing. Sewing machines with this optional equipment also allow the sewing of a fancy-stitch bartack.

  • Page 86: Np 13-4 Electro-Pneumatic Needle Return Device

    19.3 NP 13 - 4 Electro-pneumatic needle return device After the trimming of the thread, the machine stops in the 2nd position when the thread lever has reached its high position. In this position the needle bar has already left its high position, so that the needle projects under the raised sewing feet.

  • Page 87: Hp 13-7 Electro-Pneumatic Quick Stroke Adjustment (Speedomat)

    19.4 HP 13- 7 Electro-pneumatic quick stroke adjustment (Speedomat) Available as standard equipment for the following subclasses: 767 - FA -373 - RAP - HP 767 - FAS - 373 -RAP - HP 767 - FAS - 573 - RAP - HP 767 - KFA - 373 - RAP - HP For the sub-classes 767-FA-273 optional Sewing machines with this optional equipment make possible sewing...

  • Page 88: Rfw 13-3 Remaining Thread Monitor

    19.5 RFW 13-3 Remaining thread monitor Available as optional equipment for the following subclasses: 767-FA-273; 767-FA-373-RAP-HP; 767-VF-373 and 767-FAS-373-RAP-HP. The remaining thread monitor monitors the thread quantity of the bobbin. An acoustic signal warns that only a small thread quantity is still available.

  • Page 89: Connecting The Controls And The Solenoid Valve For The Remaining Thread Monitor

    19.9 Connecting the controls and the solenoid valve for the remaining thread monitor ATTENTION ! The electrical installation may only be conducted by electricians or apropriately instructed persons ! The mains plug must be pulled ! – Screw the controls 3 onto the base plate of the sewing machine and valve 2 onto the valve strip.

  • Page 90: Stls 13-2 2Nd Stitch Length

    19.10 STLS 13-2 2nd Stitch length Available as optional equipment for the following subclasses: 767-FA-373-RAP-HP; 767-FA-273 and 767-VF-373 The option for the 2nd stitch length is available as standard for the following subclasses: 767-FAS-373-RAP-HP; 767-FAS-573-RAP-HP and 767-KFA-373-RAP-HP. Being able to call up the 2nd stitch length makes possible a quick change from the assembly seam to the following run-stitching seam.
  • Page 91 Setting the stitch length indicator Caution Risk of Injury ! The stitch length indicator is set with the sewing machine turned on. Conduct the setting only with the greatest possible caution. – Turn knob 1 all the way to the left. The 1 stitch length is set to the smallest value.

  • Page 92: Va Vertical Cutter

    19.11 VA Vertical cutter Sewing machines with this device make possible the cutting of the material during the sewing sequence. The vertical cutter does not function during each pneumatic lift of the sewing feet. During operation of the knee lever this is only the case after 2/3 lift.
  • Page 93 Position of the release block – Loosen screw 1. – Turn block 2. With the vertical cutter turned on, the clearance between the release block 3 and the latch 4 should be 0.5 mm. The block 2 should not touch the arm shaft. –...
  • Page 94 Knife overlap Prerequisite is that the block 11 is seated flush on the rod 12. This results in an optimum clamping effect. – Loosen screw 6. (Insert the wrench through the hole in the housing wall) – Turn shaft 5. When the knife 9 is at the lower dead center the overlap should be 0.5 mm.

  • Page 95: Ae Edge Cutter And Binder

    19.12 AE Edge cutter and binder Sewing machines with this device make possible that the edge of the material is cut and bound at the same time. The knife of the edge cutter runs continuously. With the hand lever, the edge cutter can be moved approx.
  • Page 96 Knife overlap Prerequisite is that the block 7 is seated flush on the rod 8. This results in an optimum clamping effect. Important: Just at the moment, when the cutting edge of the upper knife is touching the cutting edge of the lower knife, the knife arm should be horizontal.

  • Page 97: Seam Center Guide

    19.13 Seam center guide In order to be able to operate the seam center guide the sewing drive DC1600/DA82GA is required. The kit for the seam center guide can be mounted on the special sewing machine 767-FA-273 euipped with the sewing equipment E74. The seam center guide serves as a guiding help for topstitching operation.

  • Page 98: Sp 470 Roller Feed Device

    19.17 SP 470 Roller feed device The removal of the material by the upper and lower conveyor rollers after sewing ensures a smooth and uniform product. (See Additional Instructions 0791 767681). 19.18 WTA 13-2 Automatic lowering This is an optional item to go with the upper and lower conveyor rollers. It enables the stitches to be adjusted from the beginning of the seam to the automatic lowering of the upper roller.

  • Page 99: Maintenance

    Maintenance Caution Risk of Injury ! Turn the main switch off. The maintenance of the special sewing machine may only be conducted with the machine turned off. The maintenance tasks to be conducted daily and weekly by the operating personnel of the special sewing machine (cleaning and oiling) are described in Part 1: Operating Instructions.
  • Page 100 Note:...

Table of Contents