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Programming

Service Instructions 878-M PREMIUM - 03.0 - 10/2019

93

Test

Step.Motor

(

Test of the stepper motor

) subitem

You may use this subitem to test the stepper motors for stitch length
adjustment, sewing foot lifting/sewing foot pressure and stroke
adjustment. The machine can move to defined positions (steps),
where 2,000 steps = 360.

To test the stepper motors:

1.

Select the desired motor with the



/



in the

Stepper

field.

Fig. 64:

Test

Step.Motor

(Test of the stepper motor) subitem

2.

Press the

OK

button to confirm the selection.

3.

Use the



/



buttons to test the selected motor.



If the motor is functioning correctly, the behavior described in the table
will be shown.

Information

There is no specific procedure for testing the stepper motor encoders.
The encoders are tested along with the stepper motors. If the result for the
stepper motors is OK, the encoders will be functional as well.

Input

Stepper motor

1

Stitch length adjustment – upper motor

2

Stitch length adjustment – lower motor

3

Sewing foot lift

Input

Stepper motor

Test method

1

Stitch length adjustment –
upper motor

The feed gear completes a movement.

2

Stitch length adjustment –
lower motor

The feed gear completes a movement.

3

Sewing foot lift

The sewing feet perform a vertical movement.

Position:

Stepper :

OFF(0)

1

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Содержание 878-M PREMIUM

Страница 1: ...878 M PREMIUM Service Instructions...

Страница 2: ...ted by copyright Any reuse of these contents including extracts is prohibited without the prior written approval of D rkopp Adler AG Copyright D rkopp Adler AG 2019 IMPORTANT READ THESE INSTRUCTIONS C...

Страница 3: ...sembling the circular feed dog 19 3 5 Flats on shafts 20 3 6 Locking the machine in place 21 3 7 Setting the handwheel into position 22 4 Setting the handwheel scale 23 5 Positioning the arm shaft 24...

Страница 4: ...r 62 16 1 5 Assembling the handwheel 63 17 Programming 65 17 1 Calling up the Technician level 65 17 2 Structure of the software 65 17 3 Parameter selection ParameterCall submenu 66 17 4 Program prese...

Страница 5: ...Config parameter 85 17 6 5 Setting the Stitch functions StitchFunctions parameter 86 17 6 6 Setting the Programs Programs parameter 87 17 6 7 Setting the Electronic handwheel JogDial parameter 87 17 6...

Страница 6: ...ontents 4 Service Instructions 878 M PREMIUM 03 0 10 2019 21 2 Errors in the sewing process 118 21 3 Error in the software 120 21 4 Testing the function of the buttons 120 22 Technical data 123 23 App...

Страница 7: ...ate technical training for performing maintenance or repairing malfunctions With regard to the minimum qualifications and other requirements that must be met by these personnel please view the chapter...

Страница 8: ...ep Information Additional information e g on alternative operating options Order Specifies the work to be performed before or after a setting References Reference to another section in these instructi...

Страница 9: ...able standards and regulations D rkopp Adler cannot be held liable for any damage resulting from Breakage and damage during transport Failure to observe these instructions Improper use Unauthorized mo...

Страница 10: ...About these instructions 8 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 11: ...ould impair safety and damage the machine Only use original parts from the manufacturer Transport Use a lifting carriage or forklift to transport the machine Raise the machine a max of 20 mm and secur...

Страница 12: ...used in warnings Warnings in the text are distinguished by color bars The color scheme is based on the severity of the danger Signal words indicate the severity of the danger Signal words Signal word...

Страница 13: ...ven fatal injury if ignored This is what a warning looks like for a hazard that could result in moderate or minor injury if the warning is ignored Puncture Crushing Environmental damage Symbol Type of...

Страница 14: ...environmental damage if ignored This is what a warning looks like for a hazard that could result in property damage if ignored ATTENTION Type and source of danger Consequences of non compliance Measu...

Страница 15: ...machine such that the function of the moving parts is not hampered 1 Lay any excess cabling neatly in proper cable snakes 2 Bind the cable loops together with cable ties Important Tie the loops wherev...

Страница 16: ...ry to lock the machine before every handling such as changing or threading the bobbin 1 Press the button 1 The button lights up The main drive is disconnected from the power supply 2 Perform the neces...

Страница 17: ...ds to be removed at that particular time 3 4 1 Access to the underside of the machine Cover In order to access the components on the underside of the machine you must first swivel up the machine head...

Страница 18: ...s far as it will go Erecting the machine head 1 Erect the machine head 3 4 2 Removing and placing the arm covers Fig 3 Removing and placing the arm covers Removing the arm cover 1 Loosen the screws 2...

Страница 19: ...the head cover 1 Loosen the screws 2 2 Remove the head cover 1 Placing the head cover 1 Place the head cover 1 2 Tighten the screws 2 3 4 4 Removing and placing the valve cover Fig 5 Removing and pla...

Страница 20: ...t plate Proper setting At the standard setting the throat plate slide should be positioned at the center of the throat plate Disassembling the throat plate and setting the position of the throat plate...

Страница 21: ...material larger teeth for sufficient material pulling Important The feed dog teeth increment above the throat plate and the teeth pitch must be adjusted according to the thickness and toughness of the...

Страница 22: ...Loosen the screw 5 and tighten the screw 4 2 When the required increment is achieved tighten the screw 5 as far as it will go 3 Tighten the screw 4 Smaller increments A smaller increment is achieved b...

Страница 23: ...ft There are two securing positions Position 1 Loop stroke position 5 mm end in the large arresting groove 1 Setting the loop stroke and needle bar height Position 2 Handwheel zero position 3 mm end i...

Страница 24: ...eg 3 with the appropriate end into arresting groove 1 or 2 Removing the lock 1 Pull the locking peg 3 out of arresting groove 1 or 2 2 Insert the plug into the locking opening 4 3 7 Setting the handwh...

Страница 25: ...he machine in place p 21 2 Unscrew 3 screws and remove the handwheel 4 3 Loosen the 2 threaded pins of the handwheel washer 3 using the 3 mm Allen wrench 5 and turn the washer 3 Important The marking...

Страница 26: ...oosen the threaded pins 1 on the arm shaft crank 3 3 Turnthearmshaft crank 3 sothat the threadedpins 1 are completely set on the surface of the arm shaft 4 Push the arm shaft to be flush with the arm...

Страница 27: ...the winder wheel Therefore you must first align the upper toothed belt wheel on the winder wheel and then align the lower toothed belt wheel so that the toothed belt runs correctly over both wheels 6...

Страница 28: ...mm 5 Tighten the threaded pins 4 6 2 Positioning the lower toothed belt wheel Fig 15 Positioning the lower toothed belt wheel Proper setting The two threaded pins for the lower toothed belt wheel are...

Страница 29: ...Instructions Proper setting The needle pierces the exact center of the needle hole 7 1 Aligning the needle bar linkage sideways Fig 16 Aligning the needle bar linkage sideways 1 1 Remove the arm cover...

Страница 30: ...e surface 5 Move the needle bar linkage sideways such that the needle pierces the exact center of the needle hole 6 Drive the threaded pins 1 7 Align the thread lever 4 exactly in the middle of the ar...

Страница 31: ...Remove the head cover p 17 2 Loosen the screw 2 and turn the needle bar so that the right end of the groove 1 faces the needle bar axis 3 Tighten the screw 2 4 Lock the machine in place at position 2...

Страница 32: ...value of the respective parameter 2 The position in the sewing direction should be adjusted as follows for 1 needle machines A 1 3 to 2 3 mm for 2 needle machines A 0 to 2 3 mm 3 The side position of...

Страница 33: ...rescribed in instruction 2 6 Tighten the screw 2 7 Loosen the screw 3 8 Move the sewing foot as prescribed in instruction 3 by turning the screw 4 9 Tighten the screw 4 Sewing foot stroke Proper setti...

Страница 34: ...l move of the stepper motor holder 10 7 Tighten the screws 11 Sewing foot pressure The sewing foot pressure is set via the program parameters The correct sewing foot pressure depends on the sewing mat...

Страница 35: ...e foot and set a medium pressure for the foot onto the material 2 Loosenthescrews 1 andmovetheholder 2 withtheguide 3 vertically until it rests on the leather Tighten the screws 1 slightly Loosen the...

Страница 36: ...ly to the distance A 4 Tighten the screws 3 WARNING Risk of injury from sharp or moving parts Punctures and crushing possible Before setting the hook and the needle bar switch the sewing machine off N...

Страница 37: ...ing stroke 1 The looping stroke is the length of the path from the bottom dead center of the needle bar up to the place where the hook tip is positioned accurately at the needle grove axis The looping...

Страница 38: ...2 Loosen the threaded pins 2 of the clamping ring 1 3 Turn the hook so that the hook tip 4 points exactly to the needle groove axis 3 4 Tighten the threaded pins 2 of the clamping ring 1 5 Remove the...

Страница 39: ...at the erroneous height of the needle bar Damage to the hook tip Needle thread seizing Missing stitches Thread breaking Needle breakage 1 Remove the head cover p 17 Fig 25 Setting the needle bar heigh...

Страница 40: ...dle groove is 0 02 to 0 1 mm 1 Tilt the machine head p 15 2 Open the hook cover Fig 26 Setting the side distance of the hook 3 Lock the machine in place at position 1 p 21 4 Loosen the four threaded p...

Страница 41: ...hook tip Order First check the following setting Loop stroke position p 39 Side distance of the hook p 38 Height of the needle bar p 40 A straight and undamaged needle has been inserted Operating Inst...

Страница 42: ...minated Stronger pressure when pushing away turn counterclockwise Weaker pressure when pushing away turn clockwise 10 6 Setting the loop former Proper setting The loop former 1 in 1 needle machines sh...

Страница 43: ...hen the hook tip is positioned under the opening hook 1 the opening hook 1 must open to let the thread draw around this place as well For the smooth passage of the thread the lifting gap and timing fo...

Страница 44: ...grove in the throat plate 2 The gap A should be 0 8 mm at the maximum lifting 1 Tilt the machine head p 15 2 Open the hook cover 3 Set the handwheel to 310 Fig 31 Setting the lifting gap 2 4 Remove th...

Страница 45: ...or the right hook column 310 to 315 for the left hook column 45 to 50 1 Tilt the machine head p 15 2 Insert the adjusting pin 1 through the hole in the hook column into the opening cam 2 The right hoo...

Страница 46: ...sion thick sewing material high thread strengths Proper setting For a majority of sewing operations the optimal setting of the needle thread regulator is with its bottom edge facing the number 2 The l...

Страница 47: ...he sewing material Proper setting The thread tensioning spring does not contact the stop until the needle eye has plunged into the sewing material The setting for the thread tensioning spring must be...

Страница 48: ...e thread lever mechanism to the position A or B 4 Tighten the threaded pins 12 4 Electronic needle thread tension The electronic needle thread tension is calibrated in the factory and cannot be change...

Страница 49: ...e winder wheel and the toothed belt wheel side is 0 8 mm 1 Remove the arm cover p 16 1 Loosen the threaded pins 1 2 Move the toothed belt wheel 2 to the right or left so that the distance from the win...

Страница 50: ...winder filling quantity The position of the arms 4 on the winder lever 3 determines the filling quantity Parallel Automatic winding stops at 0 5 mm below the edge of the winder Closer together Automat...

Страница 51: ...9 Set the winder lever 3 such that the upper arm is above the marking e g for the XXL hook 11 The distance between the winder lever and the outer thread on the bobbin is 2 3 mm 10 Set the block 8 suc...

Страница 52: ...gainst the leaf spring 15 when the block 8 has engaged in the locking disk 15 Set the switch cam 14 such that the winder lever 3 has no axial play 16 Tighten the threaded pin 13 Installing the winder...

Страница 53: ...guide determines how the hook thread is wound onto the bobbin Proper setting The hook thread is wound up evenly over the entire width of the bobbin 1 Loosen the screw 1 2 Turn the hook thread guide 2...

Страница 54: ...one another at the distance C 1 to 2 mm Fig 43 Setting the cutting knives 1 Loosen the screws 3 4 5 and move the holder 2 down 2 Tightenslightlythescrew 4 whichfitsthesurfaceofthethreadtrimshaft 3 Ti...

Страница 55: ...hten the screw 6 very slightly 8 Set the angle to 270 for the handwheel 9 Turn the moving knife 1 to have the distance C and move the fixed knife towards it 8 until the knives are touching without pre...

Страница 56: ...e moving knife 5 should cross the blade of the fixed knife 4 by 0 5 to 1 mm Fig 44 Starting position of the moving knife 1 Tilt the machine head p 15 2 Check whether the cutoff curve 3 is pushed as fa...

Страница 57: ...en screws 1 2 3 and shift the knife holder downwards 3 Slightly tighten screw 2 which fits the thread trim shaft surface 4 Tighten the slide screw 3 until instruction 1 is accomplished 5 Tighten the s...

Страница 58: ...t the machine head p 15 2 Open the hook cover 3 Loosen the screws on the ring 14 4 Loosen the screws on the cutoff curve 9 5 Turn the top of the cutoff curve 9 to face the roller 10 Move the cutoff cu...

Страница 59: ...hook thread from the hook 1 Perform sewing and the thread trim 2 Using the screwdriver 2 pull the thread as shown in the picture and determine whether the thread is pulled out from the hook under the...

Страница 60: ...setting The 4 threaded pins 1 on the two adjusting rings next to the safety snap on coupling 3 must be parallel to one another After the safety snap on coupling has disengaged they are no longer paral...

Страница 61: ...slot 5 against the marking point 6 so that 8 Nm is reached for the torque Increase force turn in the direction Decrease force turn in the direction 4 Tighten the screw 7 NOTICE Property damage may oc...

Страница 62: ...he handwheel flange 4 DANGER Risk of injury from electricity Unprotected contact with electricity can result in serious injuries or death Work on the electrical system must ONLY be carried out by qual...

Страница 63: ...screws 1 2 Remove the cover 2 in the direction of the handwheel axis 16 1 3 Removing the motor Fig 52 Removing the motor 3 Loosen the screws 1 and disconnect the cables from the motor 4 Loosen the 3...

Страница 64: ...upper shaft 2 Tighten the 3 screws 2 on the motor flange 3 Tighten the screws 1 Important The first row of the screws 1 on the toothed belt wheel in the direction of rotation should be tightened up to...

Страница 65: ...egrated motor Service Instructions 878 M PREMIUM 03 0 10 2019 63 16 1 5 Assembling the handwheel Fig 54 Assembling the handwheel 1 Fit the handwheel 1 and tighten all three screws 2 1 Handwheel 2 Scre...

Страница 66: ...Integrated motor 64 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 67: ...55 Password entering window 3 Use the numeric buttons to enter the password 25483 You are at the Technician level 17 2 Structure of the software After the Technician level opens the display shows the...

Страница 68: ...the level of the desired parameter with the buttons 4 Use the button to move to the Cat category and select the desired value with the buttons or the number keys The categories are explained in the Pa...

Страница 69: ...w program To set the stitch length parameter 1 Select the StitchLength parameter 2 Press the OK button to confirm the selection 3 Enter the desired value 00 0 7 0 mm based on the maximum stitch length...

Страница 70: ...rd when creating a new program To set the needle thread tension parameter 1 Select the ThreadTension parameter 2 Press the OK button to confirm the selection 3 Enter the desired value 01 99 4 Press th...

Страница 71: ...ting whether the end bartack is automatically activated in a new program 17 4 8 Setting the Thread Trim ThreadTrim parameter Setting whether the thread trim is automatically activated in a new program...

Страница 72: ...ter counts upward Down the daily pieces counter counts downward Reset Enter the value to which the daily pieces counter should return when it is reset value range 999 999 Parameter Explanation Referen...

Страница 73: ...e range On Off StopIdle Position of the needle after thread trimming reversal position the needle is set upward to reach the full lifting height and the needle lever is subsequently no longer at the t...

Страница 74: ...period t1 Value range 000 1000 ms DtyC t1 Duty cycle in time period t1 Value range 000 100 t2 s Activation duration of the thread trim in time period t2 Value range 000 600 s DtyC t2 Duty cycle in tim...

Страница 75: ...e 000 100 t2 s Activation duration of the thread trim in time period t2 Value range 000 600 s DtyC t2 Duty cycle in time period t2 Value range 000 100 Neat Seam Beginning Neat seam beginning Value ran...

Страница 76: ...t the operator level Value range 050 400 rpm Pos Speed Position speed the last stitch is made at a slower speed during the stopping of the sewing procedure Value range 010 700 rpm Soft Speed Speed for...

Страница 77: ...ot lifting off Value range 0 0 3 0 mm Activated see p 84 Menu item Setting options FL Tens Mode Mode for lifting the needle thread tension during the active lifting of the sewing foot 0 Needle thread...

Страница 78: ...menu item should be set to a very low value Value range 0 1 7 5 s NOTICE Property damage may occur The machine and the sewing equipment may be damaged ALWAYS enter the maximum possible stitch length...

Страница 79: ...he bobbin rotation monitor 0 PCB 9850 867003 1 CAN version right bobbin 2 CAN version right and left bobbin SSD Enhancement check only when BobbinMonit is not set to 2 Value range On Off BRM Bobbin ro...

Страница 80: ...Number of speed steps processed by the pedal Value range 00 64 Curve Speed curve of the pedal t Posit 1 Debouncing of position 1 Value range 000 255 ms t Posit 2 Debouncing of position 2 Value range...

Страница 81: ...ing the seam center guide when lifting the sewing foot Tack Lift Raising the seam center guide when reverse sewing and lifting the sewing foot RaiseOnHP When the second stroke height is activated the...

Страница 82: ...edle thread tension and or the second sewing foot stroke switches back This tolerance is designed to ensure that there is no constant alternating between activation and deactivation in the boundary ra...

Страница 83: ...ue range 0010 2 000 rpm Fr pedalstart On Pedal can be pressed and the machine sews as soon as the material breaks the light barrier Off Pedal is pressed but the machine does not start sewing must be s...

Страница 84: ...Down The sewing foot is lowered in threading mode Up The sewing foot is lifted in threading mode Pedal The sewing foot can be lifted or lowered with the pedal in threading mode Parameter Explanation R...

Страница 85: ...immediately 17 6 2 Setting the Parameter view ParameterView parameter The display of the parameter numbers can be activated or deactivated When activated the parameter numbers appear to the left of th...

Страница 86: ...ne input signal Input Buttons on the push buttons S1 X120T 3 S2 X120T 16 S3 X120T 4 S4 X120T 17 S5 X120T 5 S6 X120T 18 Knee button S1 X120T 15 Knee button S2 X120T 2 Electronic handwheel S1 X100B 15 O...

Страница 87: ...ng options Mode 0 No function 1 Threading position 2 Bartack active inactive 3 Manual bartack 4 Half stitch 5 Full stitch 6 Point position 8 Needle height 11 2 Needle thread tension 12 Change of stitc...

Страница 88: ...ually they can also be counted if required To do so this function must be active The electronic handwheel is not affected by this setting STL X17 X120B 22 STL FA X18 X120B 23 FL X15 X22 X90 12 FF3 OUT...

Страница 89: ...he pedal Value range On Off Notice Position 2 actually causes a cancellation when activated during seam section If the section change function is assigned to Position 2 the softkey menu can be used fo...

Страница 90: ...Write Off Area is hidden R O Read Only Parameters Restriction of access to the parameters Value range R W Off Stitch Length Restriction of access to the stitch length Value range R W Off R O Thr Tens...

Страница 91: ...rting of the sewing machine 17 6 10 Setting the Contrast Contrast parameter Set the contrast of the OP3000 to the user s needs here To set the parameter 1 Select the Contrast parameter 2 Press the OK...

Страница 92: ...o test the outputs 1 Select the desired output with the buttons Fig 59 Test Output subitem 2 Press the OK button to activate deactivate the selected output Parameter Explanation Reference Multi test M...

Страница 93: ...th modulation subitem 2 Press the OK button to confirm the selection The Value display toggles between On and Off every time the OK button is pressed 3 Observe the selected element and check if pressi...

Страница 94: ...hand via the display To perform the test steps 1 Activate the element In Input the display shows the number of the element last changed If the element is functional the display switches between On and...

Страница 95: ...uttons to test the selected motor If the motor is functioning correctly the behavior described in the table will be shown Information There is no specific procedure for testing the stepper motor encod...

Страница 96: ...tine Adjustments parameter The Adjustments parameter is not explained in greater detail here because it is closely related the area of mechanics Details on this area can be found in the Service routin...

Страница 97: ...on the display Important If the lower position of the stitch adjustment lever is being tested it must be pressed all the way down Calibration of the Edge guide EdgeGuide The edge guide is an optional...

Страница 98: ...be made for resetting the data The options are explained in more detail in the table Access is possible only by entering the password 25483 again The reset is carried out immediately after selecting...

Страница 99: ...Important It is only permitted to use USB keys bought from D rkopp Adler 17 11 1 Setting the All data AllData parameter All data i e parameter settings programs and calibration values are transfered t...

Страница 100: ...4 Use the buttons to choose between the options Load from USB or Store to USB 5 Press the OK button The following warning message appears Fig 68 Data loss warning message 6 To cancel press the ESC bu...

Страница 101: ...the USB key or the control To transfer the parameter settings and calibration values 1 Plug the USB key into the socket 1 on the control 2 Fig 70 Data Transfer submenu 2 Call up the Service Data Trans...

Страница 102: ...ears stating that the USB key must not be removed Fig 72 USB key warning The message disappears after the data transfer 17 11 3 Setting the Programs Programs parameter It is possible to transfer all o...

Страница 103: ...rning message appears Fig 74 Data loss warning message 6 Select the program with the buttons 7 Press the OK button to confirm the selection A check mark in front of the program name shows that it has...

Страница 104: ...utton and select the Copy option 20 Press the OK button to confirm the selection The data transfer begins and a message appears stating that the USB key must not be removed Fig 75 USB key warning The...

Страница 105: ...e with the main switch 2 Plug the USB key into the socket 1 on the control 2 Fig 76 Perform software update 3 Switch on the machine with the main switch The machine automatically starts the software t...

Страница 106: ...oftware update 4 Wait until the machine has started and is showing manual mode or automatic mode 5 Remove the USB key from the control The software update is complete and the machine is ready to sew 3...

Страница 107: ...RNING Risk of injury from sharp parts Punctures and cutting possible Prior to any maintenance work switch off the machine or set the machine to threading mode WARNING Risk of injury from moving parts...

Страница 108: ...jury from airborne particles Airborne particles can enter the eyes causing injury Wear safety goggles Hold the compressed air gun so that the particles do not fly close to people Make sure no particle...

Страница 109: ...arly susceptible to soiling Cutter on the winder for the hook thread 4 Area under the throat plate 3 Hook 2 Area around the needle 1 1 Remove any lint and thread remnants using a compressed air gun or...

Страница 110: ...f injury from contact with oil Oil can cause a rash if it comes into contact with the skin Avoid skin contact with oil If oil has come into contact with your skin wash the affected areas thoroughly NO...

Страница 111: ...e head Fig 80 Lubricating the machine head Proper setting The oil level must not rise above the MAX marking point 2 or drop below the MIN marking point 3 1 Fill the oil through the oil filler opening...

Страница 112: ...ld protrude from the lubricating nipple by 0 5 mm 3 After sewing a path of approx 1 m long the blotting paper is evenly sprayed with a thin layer of oil 1 Open the hook cover 2 Loosenthethreadedpin 1...

Страница 113: ...Maintenance Service Instructions 878 M PREMIUM 03 0 10 2019 111 18 3 Parts List A parts list can be ordered from D rkopp Adler For more information visit our website www duerkopp adler com...

Страница 114: ...Maintenance 112 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 115: ...om soiling 6 Cover the control cabinet to protect it from soiling 7 Cover the entire machine if possible to protect it from contamination and damage WARNING Risk of injury from a lack of care Serious...

Страница 116: ...Decommissioning 114 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 117: ...e national regulations When disposing of the machine be aware that it consists of a range of different materials steel plastic electronic components etc Follow the national regulations when disposing...

Страница 118: ...Disposal 116 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 119: ...117 21 Troubleshooting 21 1 Customer service Contact address for repairs and issues with the machine D rkopp Adler AG Potsdamer Str 190 33719 Bielefeld Tel 49 0 180 5 383 756 Fax 49 0 521 925 2594 Em...

Страница 120: ...hread tensions Thread guiding parts such as the thread tube thread guide or thread take up disk are sharp edged Check the threading path Throat plate hook or spread have been damaged by the needle Hav...

Страница 121: ...material the sewing material thickness or the thread used Check the thread tensions Needle thread and hook thread have not been threaded correctly Check the threading path Needle breakage Needle stren...

Страница 122: ...p 1 Switch off the machine with the main switch 2 Hold the F button pressed down and at the same time switch on the machine with the main switch The machine starts up and the display shows the input s...

Страница 123: ...ing box on the display will be filled in highlighted brightly If the key is not functional then the box stays empty 4 Press the ESC button to end If all the buttons are functional the display shows th...

Страница 124: ...78 M PREMIUM 03 0 10 2019 Related instructions Electronic handwheel 0791 867951 Hook thread monitoring Instructions for safety elements Parameter data sheet DAC Comfort 0791 867980 EN Basic informatio...

Страница 125: ...stitch post bed sew ing machine Technical data Unit 878 160722 M 878 160725 M 878 260722 M Machine type Double lockstitch 301 Hook type vertical L large 26 mm Number of needles 1 1 2 Needle system 134...

Страница 126: ...Technical data 124 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 127: ...Appendix Service Instructions 878 M PREMIUM 03 0 10 2019 125 23 Appendix Wiring diagram...

Страница 128: ...Appendix 126 Service Instructions 878 M PREMIUM 03 0 10 2019...

Страница 129: ......

Страница 130: ...with additional equipment Printed in Germany D rkopp Adler AG Service Instructions 0791 878640 EN 03 0 10 2019 D RKOPP ADLER AG Potsdamer Stra e 190 33719 Bielefeld GERMANY Phone 49 0 521 925 00 E ma...

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