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Dürkopp Adler 838-xxxxxx-M series, Service Instructions Manual

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Dürkopp Adler 838-xxxxxx-M series Service Instructions Manual Download Page 42

DÜRKOPP ADLER AG
Potsdamer Str. 190
33719 Bielefeld
Germany
Phone  +49 (0) 521 925 00
E-Mail: [email protected]
www.duerkopp-adler.com

Subject to design changes - Printed in

 Ge

rmany - © Dürkopp Adler AG - Service Instructions - 0791 

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Summary of Contents for 838-xxxxxx-M series

Page 1: ...838 Service Instructions...

Page 2: ...Property of D rkopp Adler AG and copyrighted Reproduction or publication of the content in any manner even in extracts without prior written permission of D rkopp Adler AG is prohibited Copyright D r...

Page 3: ...all subclasses of the machine and contains also the instructions for setting optional accessories of the machine if this is necessary owing to their complexity Provided the machine supplied does not...

Page 4: ...rsons with appropriate training 7 For service or repair work on pneumatic systems disconnect the machine from the compressed air supply system max 7 10 bar Before disconnecting reduce the pressure of...

Page 5: ...the feed clutch 14 2 8 Checking the switch over of the feed clutch 15 2 9 Feed dog 16 2 10 Balance weight 17 3 Top feed 3 1 Position of the needle holder for single needle sewing machines 19 3 2 Needl...

Page 6: ...Index Page 7 Electronic control and sewing machine drive positioning motor 36 7 1 Terminals to PCB connections electromagnetic variant 37 7 2 Terminals to PCB connections pneumatic variant 38...

Page 7: ...Please observe that various setting positions are dependent on each other Thus it is essential that the settings be conducted while keeping to the order described For all adjustments of parts involve...

Page 8: ...needle bar is at top dead centre the pointer 3 should be aligned with 0 degrees 1 2 1 Sewing machines with minimotor Loosen the handwheel screws with a 3 mm Allen key 1 Position the needle bar in the...

Page 9: ...ng pin 2 which is a part of the sewing machine accessories and which is fixed on the oil tray bottom side into the crank head Loosen two setting screws of the hand wheel flange 4 with the Allen key 3...

Page 10: ...a 10 mm open ended wrench Verify that the stitch regulator gear is without motion by pressing down on the bartacking lever This fulfils rule 1 Set the scaling ring 4 with stitch length 0 to align with...

Page 11: ...and turn the grooved 3 eccentric tappet 2 according to the illustration Fasten with screw 1 Loosen screw 4 on the clamping lever Turn the settings frame 5 so that the shackles 6 are parallel Tighten s...

Page 12: ...ew 1 Loosen screws 2 Screw out the screw on the feed clutch 4 Push the needle 3 into this opening Turn the clutch 4 with your hand until the needle 3 is 5 mm into the hole The rule is then fulfilled T...

Page 13: ...et 3 so that it is approximately in the position shown in the illustration Now make the fine scale adjustment to the eccentric tappet Continue until you have found the position where the feed lever 1...

Page 14: ...ld be flush with the ridge on the crankshaft 4 Turn the handwheel so that the pointer indicates 239 Loosen screws 1 Insert a settings pin 2 into the eccentric tappet 3 Position it so that it is flush...

Page 15: ...until you feel it strike the tightening increases in jumps Push the clutch 6 to the right until the end stop is reached Tighten the screws 4 Verify the adjustment Turn the eccentric tappet with your h...

Page 16: ...d Loosen screws 3 Turn the handwheel to position 305 Turn the eccentric tappet in the direction of arrow so that dash 1 is lined up with dash 2 Turn back the eccentric tappet about 2 and move axially...

Page 17: ...onal direction B of the belt pulley 1 corresponds to the direction specified in the table Do the same for 276 degrees If the rotational directions do not correspond to those specified in the table cor...

Page 18: ...throat plate must be appropriate for the thickness and toughness of the material 2 In its highest position A the feed dog should be 1 mm over the throat plate insert Loosen screw 1 According to the ab...

Page 19: ...en key 3 stuck in stands parallel to the bed plate 2 Loosen the screws on the balance weight 1 Turn the balance weight 1 according to the rule Tighten the screws on the balance weight 1 Caution Danger...

Page 20: ...Notes 18...

Page 21: ...ty of the needle holder Needle width Nm 120 160 180 200 Loosen screw 1 Turn the needle bar with the right grooved edge 2 on the needle bar axis in the sewing direction Tighten screw 1 Move the needle...

Page 22: ...e needle is moved A 0 1mm to the left to the middle of the stitch hole 2 2 for the double needle machine it should be set so the needle stands symmetric to the middle of the stitch hole 3 The needle p...

Page 23: ...Loosen screw 2 and the two screws 3 Move the post bed feed 4 so that either rule 2 1 is met A 0 1 mm according to Figure 1 or rule 2 2 according to Figure 2 21 EN 3 Fig 1 Fig 2 A 4 2...

Page 24: ...er should be set so that the lower edge of the top roller is aligned with the left edge of the stitch hole 8 Loosen screws 1 Push the presser foot bar perpendicularly according to rule 1 Insert the cr...

Page 25: ...sition shown At the same time screw in the screw 3 until it hits the lever 4 The lever 2 remains in the position shown Position the spacer 5 6 mm below the top roller Move the hand lever 5 to the end...

Page 26: ...bric holder 3 vertically until it comes to rest without any pressure on the leather Tighten screw 1 but not too hard Loosen screw 4 and effectuate the same setting for the front fabric holder 5 Remove...

Page 27: ...t the hook at the distance A and tighten the screws 2 Push the ring 3 until its stops at the the hook bottom and tighten screw 1 When replacing the hook it is not necessary to readjust its setting in...

Page 28: ...that the pointer indicates 205 Loosen screws 1 Turn the hook tip 2 on the needle axis Loosen screw 3 Position the needle bar with the needle to the dimension A Tighten screw 3 Loosen two screws 4 and...

Page 29: ...Dismount the throat plate Bend the loop former 1 to have the distance A according to rule 1 Turning the screw 2 set the guard 3 so that it prevents the needle being caught with the hook point 4 Check...

Page 30: ...e 0 8 mm Insert the retention pin 1 in the lifting cam 2 This is at the rear for the right hook column and at the front for the left hook column Remove the lower plug Loosen screw 3 Adjust the handwhe...

Page 31: ...g fitting 2 to the distance measure A according to rule 1 and tighten screw 1 This procedure accomplishes rule 1 Screw in screw 3 according to rule 2 In order to throttle the lubrication screw in deep...

Page 32: ...o number 4 according to rule 1 Tighten screw 2 Loosen screw 3 Turn stop sleeve 4 in the direction of arrow until the thread take up lever 5 is separated from the body 6 Turn the stop sleeve 4 in the o...

Page 33: ...ey to the top using the screws 1 Push the toothed belt to the right so that both screws 1 are accessible Loosen screws 1 and set the distance measure A according to rule 1 tighten screws 1 Determine t...

Page 34: ...ts on the surface of the shaft Tighten screw 3 until the distance measure A 0 2 mm is set and thus rule 1 is accomplished Tighten screw 2 and afterwards also screw 1 Dismount the column protection Loo...

Page 35: ...lade of the counter knife 4 of 0 5 1 mm Check whether the control cam 2 butts against the ring 5 Position the control cam according to the rule Loosen screw 6 Set the thread pulling knife 3 according...

Page 36: ...distance between the cam and the roller is A 0 05 0 1 mm Shift the ring 3 to the right towards the cam 1 until it stops Take care that the hook timing par 4 2 is not destroyed Tighten the ring 3 screw...

Page 37: ...pect the thread according the illustration Check if the thread is being pulled out of the bobbin winder or from the clamping 1 Using screw 3 control and adjust the spring pressure 1 until the rule is...

Page 38: ...electronic components Turn off the main switch Remove the plug from the socket Electrostatic discharges can cause damage to PCBs and other components You can obtain a certain protection by wearing an...

Page 39: ...necting cable 9870 688002 for connector on base plate thread trimmer solenoids sewn material edge horizontal trimmer X17 microswitch of sewn material edge trimmer vertical oblique X18 sewn material ed...

Page 40: ...B3000 needle switch off 10 0V FW STL FA auxiliary outlet thread wiper zero stitch length at thread trimming X20 external outlet controlled with auxiliary pushbutton on keypad Imax 50mA X21 connection...

Page 41: ......

Page 42: ...er Str 190 33719 Bielefeld Germany Phone 49 0 521 925 00 E Mail service duerkopp adler com www duerkopp adler com Subject to design changes Printed in Germany D rkopp Adler AG Service Instructions 079...

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