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Setting the feed dog

Service Instructions 969 - 01.0 - 12/2015

Setting the feed dog

The position and the movement of the feed dog and needle bar have to be
coordinated so that the needle pierces exactly in the center of the needle
hole on the feed dog.

Sequence

First, check the following setting:

•

Needle bar linkage (



p. 47)

8.1

Setting the feed dog position

Proper setting

When the stitch length is set to 0 and the needle is at the bottom dead
center:



The center of the feed dog opening (2) lines up with the axle of the
needle.

Cover

•

Tilt the machine head (



p. 10).

WARNING

Risk of injury!

Crushing injuries from moving parts.

Switch off the machine before setting the feed dog
position.

Summary of Contents for H-Type 969

Page 1: ...969 Service Instructions...

Page 2: ...eserved Property of D rkopp Adler AG and protected by copyright Any reuse of these contents including extracts is prohibited without the prior written approval of D rkopp Adler AG Copyright D rkopp Ad...

Page 3: ...3 3 9 Removing and installing the feed dog 16 3 4 Flats on shafts 17 3 5 Axial play for shafts running in plain bearings 18 3 6 Locking the machine in place 19 3 7 Moving the handwheel into position...

Page 4: ...ting the zero stroke of the feet tension force of the torsion spring 59 11 2 Adjusting the drive dog for the presser foot bar 60 11 3 Aligning the feed stroke of the feet 61 11 4 Setting the stroke mo...

Page 5: ...s information in these instructions is represented or highlighted by the following characters in order to facilitate easy and quick understanding Proper setting Indicates proper setting Malfunctions S...

Page 6: ...perator s point of view 1 3 Other documents Some of the machine s built in components have been made by third party manufacturers Each manufacturer has performed a hazard assessment for these purchase...

Page 7: ...lacement parts from the manufacturer Transport Use a sturdy lifting carriage or forklift truck for transporting the machine Raise the machine max 20 mm and secure it to prevent it from slipping off Se...

Page 8: ...nd symbols used in warnings Warnings in the text are distinguished by color bars The color scheme based on the severity of the danger Signal words indicate the severity of the danger Signal words Sign...

Page 9: ...hat could result in moderate or minor injury if the warning is ignored This is what a warning note looks like for a hazard that could result in environmental damage if ignored DANGER Type and source o...

Page 10: ...structions 969 01 0 12 2015 This is what a warning looks like for a hazard that could result in property damage if ignored NOTICE Type and source of danger Consequences of non compliance Measures for...

Page 11: ...that they do not impair the function of the moving parts 1 Lay any excess cabling neatly in proper cable snakes 2 Tie the snakes together using a cable tie If possible bind the snakes to fixed parts T...

Page 12: ...ed at that particular time 3 3 1 Access to the underside of the machine In order to access the components on the underside of the machine you must first swivel up the machine head Fig 1 Tilting and er...

Page 13: ...n 8 The cover cannot be removed unless the adjusting wheels are set to the proper position 3 Loosen the screws 3 4 Lift the upper left cover 4 up in the direction of the arrow Removing the right arm c...

Page 14: ...g the head cover Fig 3 Removing the head cover Removing the head cover 1 Loosen the screws 2 2 Remove the head cover 1 3 3 4 Removing and fitting the cover plate Fig 4 Removing the cover plate Removin...

Page 15: ...ing the belt cover 1 Loosen the screws 1 2 Remove the handwheel 2 3 Loosen the screws 4 4 Take off the belt cover 3 3 3 6 Removing and installing the thread tension plate Fig 6 Removing the thread ten...

Page 16: ...and hoses that are attached below the upper right cover you will need to remove this cov er first 2 Loosen the screws 2 3 Take off the thread tension plate 3 3 3 7 Removing and installing the hook com...

Page 17: ...Fig 8 Removing and installing the throat plate Removing the throat plate 1 Raise the sewing feet 2 Loosen the screw 2 3 Remove the throat plate 1 WARNING Risk of injury Risk of crushing injuries and...

Page 18: ...d dog carrier 1 Installing the feed dog 1 Place the feed dog 3 on the feed dog carrier 1 and lightly tighten the screws 2 2 Install the throat plate p 15 3 Adjust the feed dog 3 so that it has an equa...

Page 19: ...15 17 3 4 Flats on shafts Fig 10 Flats on shafts Some shafts have flat surfaces at the points where the components are screwed on This stabilizes the connection and makes adjustment easier Always ensu...

Page 20: ...in plain bearings Shafts 2 running in plain bearing shells 1 are axially adjusted when the lever 3 and the adjusting ring 4 touch the front face of the bearing shells 1 When adjusting components moun...

Page 21: ...loop stroke and needle bar height Position 2 Handwheel zero position 3 mm end in the small slot Setting the handwheel position and checking the bottom dead cen ter for the needle bar Fig 12 Locking t...

Page 22: ...handwheel into position For some settings the graduated scale on the handwheel has to be moved to a certain position Fig 13 Moving the handwheel into position Setting steps 1 Turn the handwheel until...

Page 23: ...nk Setting steps 1 Loosen all the setscrews 1 on the arm shaft crank 2 Turn the arm shaft crank so that the setscrews 1 are seated flush on the flat of the arm shaft 3 Push the arm shaft to the right...

Page 24: ...Positioning the arm shaft 22 Service Instructions 969 01 0 12 2015...

Page 25: ...e screws 1 3 Install the belt cover and handwheel 4 Lock the machine in place at position 2 p 19 5 Set the handwheel 2 to 180 position p 20 6 Slide the hex key through the opening 3 and into the adjus...

Page 26: ...Setting the handwheel scale 24 Service Instructions 969 01 0 12 2015...

Page 27: ...t must be removed and the pulley changed to the opposite position The drive belt is then refitted and tensioned Cover Belt cover p 13 Handwheel 6 1 1 Removing the belt Fig 16 Removing the belt Setting...

Page 28: ...e two pulleys Fig 17 Adjusting the drive pulley Setting steps 1 Loosen the screws 3 2 Pull the drive pulley 2 off the motor shaft and put it back on the other way round 3 Setaheightdifferenceof16 mmbe...

Page 29: ...rn the tensioning roller 6 with the belt tensioner 3 against the ridged drive belt 7 3 Insert the hex key into the hexagonal opening 2 tension the ridged drive belt 7 and tighten the screws 4 4 Check...

Page 30: ...e ratio in the control program Setting steps 1 Select parameter setting mode on the OP1000 control panel 1 and set the parameter t 08 19 DAC basic classic Service Instructions 2 Manually rotate the ha...

Page 31: ...Setting the drive Service Instructions 969 01 0 12 2015 29 3 Press the OK key to confirm the set position 4 Press the Esc key to exit parameter setting mode 5 Switch the machine on and off...

Page 32: ...Setting the drive 30 Service Instructions 969 01 0 12 2015...

Page 33: ...y for the stitch length on the machine arm 1 If the upper adjusting wheel is activated then the key 1 lights up When the machine is switched on the most recently activated stitch length adjusting whee...

Page 34: ...usting wheel I 2 Hold the upper stitch length adjusting wheel 1 in place using a wrench 7 3 Loosen the screw 2 4 Remove the upper stitch length adjusting wheel 1 from the shaft 5 5 Carefully turn the...

Page 35: ...Tighten the upper stitch length adjusting wheel 1 using screw 2 7 2 Setting the lower stitch length adjusting wheel Checking the correct setting Sewing with 2 different stitch lengths The stitch leng...

Page 36: ...titch length adjusting wheel 3 in place using the wrench 7 4 Loosen the screw 2 5 Remove the lower stitch length adjusting wheel 3 from the shaft 5 1 Key for the stitch length on the machine arm 2 Low...

Page 37: ...g operation a limit can be placed on the maximum stitch length that can be set 12 9 or 6 mm can be selected as the maximum stitch length The appro priate throat plate must be selected for the selected...

Page 38: ...e the upper stitch length adjusting wheel 1 5 Loosen the setscrew from one of the 3 mark off openings 3 6 Screw the setscrew into the mark off opening for the required maximum stitch length The openin...

Page 39: ...se sewing Setting steps 1 Loosen the setscrew 3 2 Turn the eccentric screw 1 from the right through the opening in the base plate Basic position The slot in the eccentric screw 1 is parallel to the ax...

Page 40: ...Setting the stitch length adjusting wheels 38 Service Instructions 969 01 0 12 2015...

Page 41: ...on the feed dog Sequence First check the following setting Needle bar linkage p 47 8 1 Setting the feed dog position Proper setting When the stitch length is set to 0 and the needle is at the bottom d...

Page 42: ...e the feed dog 1 on the feed dog carrier 2 Place the removed throat plate next to it as an aid for orientation so that the feed dog can be screwed on straight 3 Tighten the screws 3 8 1 2 Moving the f...

Page 43: ...cut out 5 Slide the adjusting ring 1 and pin 7 toward each other as far as they will go When doing this make sure that the stroke shaft 2 is held firmly in place by the pin 7 and the adjusting ring 1...

Page 44: ...feed movement is checked with the machine at a standstill and set using the pusher eccentric Proper setting Set the handwheel to the 190 position and the upper stitch length adjust ing wheel to the ma...

Page 45: ...dle no longer move when the stitch adjustment lever 3 is pressed 6 Tighten the setscrews 1 8 2 2 Setting the feed dog height at top dead center The feed dog reaches the maximum stroke height at top de...

Page 46: ...etting the stroke movement Sequence First check the following setting Feed dog height p 43 Proper setting The upper edge of the feed dog must be at the same height when the feed dog is at front dead c...

Page 47: ...1 Loosen the setscrews 1 2 Move the handwheel into the 90 position 3 Turn the stroke eccentric 2 so that the upper edge of the feed dog when moving upward is at the same height as the upper edge of th...

Page 48: ...Setting the feed dog 46 Service Instructions 969 01 0 12 2015...

Page 49: ...re adjustment begins p 18 9 1 Moving the needle bar linkage sideways Proper setting When the stitch length is set to 0 and the value set on the handwheel scale is 90 The needle bar 4 sewing foot bar 5...

Page 50: ...heel into the 90 position p 20 3 Loosen the screw 1 4 Loosen the screws 2 5 Loosen the screws 3 6 Loosen the screw 8 7 Move the needle bar guide 7 sideways so that the needle bar 4 sewing foot bar 5 a...

Page 51: ...The needle bar 2 is parallel to the presser foot bar 3 Cover Upper covers p 11 Fig 33 Aligning the needle bar in the sewing direction Setting steps 1 Loosen the screw for the upper feed lever 1 2 Tur...

Page 52: ...Aligning the needle bar linkage 50 Service Instructions 969 01 0 12 2015...

Page 53: ...sion is too low the belt may slip off the pulleys Proper setting When the toothed belt 2 is pressed in the direction of the arrow about midway between the pulleys the belt should deflect about 3 mm Co...

Page 54: ...Adjusting the dead center of the reciprocating movement of the driver Proper setting At 155 the driver is at its dead center movement in counterclockwise direction Cover Upper right cover p 12 Tilt th...

Page 55: ...ce at position 1 The hook tip 3 is at the center in relation to the needle axis Fig 36 Setting the loop stroke position Setting steps 1 Set stitch length to 0 2 Lock the machine in place p 19 3 Loosen...

Page 56: ...groove to no more than 0 1 mm The hook tip and needle must not touch each other when the hook tip moves past the needle Cover Throat plate p 15 Feed dog p 16 Plate p 14 Tilt the machine head p 10 Fig...

Page 57: ...t 4 again if necessary 10 5 Adjusting the loop former The loop former 3 guides the thread loop in the needle toward the tip of the hook thus increasing the chance of the thread catching Its lateral po...

Page 58: ...wing settings Loop stroke position p 53 A straight and undamaged needle must be used Operating Instructions chapter Inserting and replacing the needle Proper setting Machine locked in place at positio...

Page 59: ...Move the height of the needle bar 2 so that the hook tip 3 is in the middle of the lower third of the groove on the needle 4 When doing so take care not to twist the needle to the side The groove 4 m...

Page 60: ...Position of the hook and needle 58 Service Instructions 969 01 0 12 2015...

Page 61: ...connecting rods 1 in a line Proper setting When the connecting rods 1 are in a line The ball pin 7 is touching the stop screw 9 The torsion spring is twisted 15 to 20 Cover Arm cover p 11 Fig 40 Sett...

Page 62: ...row and tighten the screw in the opening 4 11 2 Adjusting the drive dog for the presser foot bar Proper setting When the stitch length is set to 0 and both feet 8 and 9 are at the same height The driv...

Page 63: ...he drive dog screw 14 10 Refit the assembly 6 Make sure there is an axial play of 0 2 to 0 3 mm between the slide nut 12 and the floor of the gully 5 11 3 Aligning the feed stroke of the feet The main...

Page 64: ...ce the plate 4 and distance piece 3 under the feet as illustrated so that the sewing foot 2 is 0 3 mm lower than the presser foot 1 6 Manually move both feet down as far as they will go 7 Tighten the...

Page 65: ...set to 0 The feeding foot 1 touches down exactly on the feed dog 2 when the downward movement of the needle tip 3 reaches the upper edge of the feeding foot This will occur when the handwheel is in t...

Page 66: ...ke eccentric 1 so that the feeding foot touches down on the feed dog when the handwheel is in the 95 position and the tip of the needle is at the height of the upper edge of the feeding foot When doin...

Page 67: ...clearance of 0 3 to 0 5 mm between the stroke lever 3 and the drive dog 4 Cover Head cover p 12 Fig 46 Setting the thrust movement of the feed dog Setting steps 1 Move the handwheel into the 0 positi...

Page 68: ...he feet using the pneumatic cylinder Setting steps 1 Move the handwheel into the 0 position p 20 The presser foot 3 rests on the throat plate 2 Loosen the counternut 1 3 Activate the pneumatic lifting...

Page 69: ...al spring travel home position horizontal Thick material long spring travel home position vertically downward Standard setting The home position of the thread tensioning spring 2 is horizontal When at...

Page 70: ...ely parallel The winder is switched off mechanically when the winder pulley 5 reach es a distance of L 8 mm from the internal diameter of the bobbin 4 the roller is approx 1 mm below the outer diamete...

Page 71: ...switch off position the edge of the spring 7 should rest against the edge of the switch off lever 6 6 Tighten the screw 11 7 Check that the winder switches off when the winder pulley 5 reaches 8 mm f...

Page 72: ...nternal diameter of the bobbin 14 Tighten the screw 10 Proper setting part 2 If the winder is switched off The distance between the friction disc 12 and rubber pulley 11 is 0 5 mm The drive motor is n...

Page 73: ...blocking cam 6 in the direction of the arrow and switch on the winder so that the blocking lever 5 rests on the outer diameter of the blocking cam 6 The microswitch must not switch off a clicking wit...

Page 74: ...thread guide Proper setting The distance between the thread tensioning element 4 and the machine arm must be set so that the bobbin 2 is wound equally at both ends If due to the position of the threa...

Page 75: ...it onto the bobbin 2 If the thread is concentrated at one end of the bobbin loosen screw 5 and align the thread tensioning element 4 so that it is central to the thread guide 3 Tighten the screw 5 4...

Page 76: ...Adjusting the thread system 74 Service Instructions 969 01 0 12 2015...

Page 77: ...ed in the setting groove of the control cam 6 The handwheel scale indicates 120 Cover Upper right cover p 11 Fig 52 Setting the position of the lever using the pulley and the control cam Setting steps...

Page 78: ...etting groove 6 6 Tighten the screws 4 14 2 Basic setting of the thread cutter Proper setting When the stop lever 6 is touching the base plate 5 of the machine The distance between the control cam 4 a...

Page 79: ...between the roller 1 and control cam 4 and adjust it if necessary 7 Turn the piston 8 until it is just short of the stop distance of approx 0 5 mm 8 Tighten the screws 7 14 3 Adjusting the position o...

Page 80: ...ghten the screw 6 so that the knife carrier 3 can be turned with a slight frictional torque 6 Hold screw 5 on the cylinder 4 in the park position and turn the knife carrier 3 so that the marking on th...

Page 81: ...set too high Cover Tilt the machine head p 10 Fig 55 Setting the cutting pressure of the knife Setting steps 1 Move the handwheel into the 270 position p 20 2 Swing out the movable knife 2 3 Adjust t...

Page 82: ...Adjusting the thread cutter 80 Service Instructions 969 01 0 12 2015...

Page 83: ...allows the machine to start at low speed and build up to maximum speed over a defined number of stitches Setting This setting can only be changed via the software DAC basic classic see Service Instruc...

Page 84: ...Soft start 82 Service Instructions 969 01 0 12 2015...

Page 85: ...ter separator 2 3 Unscrew the filter element 1 4 Clean the filter element 1 5 Clean the filter tray Work to be carried out Operating hours 8 40 160 500 2000 Cleaning the filter element Lubricating the...

Page 86: ...Screw in the filter element 1 7 Screw in the water separator 2 8 Screw in the drain screw 3 NOTICE Damage to the filter due to solvent based cleaners Solvent based cleaners damage the filter Use only...

Page 87: ...s using the following part number WARNUNG Rist 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 ALWAY...

Page 88: ...sing until the flow of grease stops The lubricating nipple 1 is used to lubricate the needle bar and the feeding bar of the presser foot 3 Loosen the setscrew 3 from the needle bar frame 2 4 Press a s...

Page 89: ......

Page 90: ...Germany Phone 49 0 521 925 00 Email service duerkopp adler com www duerkopp adler com Subject to design changes Part of the machines shown with additional equipment Printed in Germany D rkopp Adler A...

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DURKOPP ADLER H-Type 969, Service Instructions Manual

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