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JUKI MO-6800D/DD20 Series, Instruction Manual, Page: 9 / 77

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JUKI MO-6800D/DD20 Series Instruction Manual Download Page 9

– 6 –

3-3. Installing the pedal sensor

1)  Install the pedal sensor to the table with 

mounting screws 

❶

 supplied with the unit.  

It is necessary to install the pedal sensor at such 
a position that the connecting rod is perpendicu-
lar to the table.

2)  After  the  completion  of  installation  of  the  pedal 

sensor on the table, place the sewing machine 
head on the table.

3)  Assemble motor starting pedal 

❷

.

❶

❷

Summary of Contents for MO-6800D/DD20 Series

Page 1: ...MO 6800S D DD20 Series INSTRUCTION MANUAL...

Page 2: ...9 5 3 Replace the needle 20 5 4 Adjusting the stitch length 21 5 5 Adjusting the differential feed ratio 21 5 6 Replace the knives 22 5 7 Adjusting the overedge width 23 5 8 Adjusting the needle heigh...

Page 3: ...atteries 65 8 ADJUSTMENT DIMENSION VALUES 67 8 1 Dimensions use to adjusting the looper and the needle guard 67 8 2 Dimensions related to the position of the thread take up and the looper thread cam s...

Page 4: ...00 g tube Part number 40006323 10 g tube Weight 28 kg Noise Equivalent continuous emission sound pressure level LpA at the workstation A weighted value of 83 0 dB Includes KpA 2 5 dB according to ISO...

Page 5: ...2 2 NAMES OF MAJOR PARTS Presser foot lifting lever Presser foot asm Thread stand Oil gauge Pulley Cloth plate cover...

Page 6: ...ck or returning it to its original position If only using one hand the weight of the machine head may be too heavy to hold and may cause human physical injuries To protect against possible personal in...

Page 7: ...ot Refer to 3 5 Air piping p 8 for how to connect the solenoid valve 4 Connect air tube to inlet tube Connect the air tube B to the solenoid valve B Refer to 3 5 Air piping p 8 for how to connect the...

Page 8: ...cover 2 Do not hold the bottom section of the electrical box cover 1 Install air blower case rubber washer and rubber cushion to frame support plate referring to the table drawing and parts list 3 2 I...

Page 9: ...ews supplied with the unit It is necessary to install the pedal sensor at such a position that the connecting rod is perpendicu lar to the table 2 After the completion of installation of the pedal sen...

Page 10: ...onnecting rod to installing hole of pedal lever with nut WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the following work after turning the po...

Page 11: ...g that the motor is at rest 2 Connect air tubes and to the solenoid valve located under the table Connect air tubes A and B coming from the suction device to A and B respectively Connect air tube to t...

Page 12: ...D23 A B C 2 Connect air tubes and to the sole noid valve located under the table Connect air tubes A and B coming from the suc tion device to A and B respectively Refer to 3 1 Installing the suction d...

Page 13: ...sonal injury To prevent personal injury caused by maloperation be sure to lock the connector with lock Do not connect the power plug until the connection of cords is completed Fix the cords while taki...

Page 14: ...rated in the figure 1 Be sure to prepare the power plug which conforms to the safety standard 2 Be sure to connect the ground lead green yellow to the grounding side Blue Brown Green Yellow ground wir...

Page 15: ...chine 4 When you turn ON the power to the sewing machine while the full automatic mode is set se lected the sewing machine will not start sewing for the sake of safety as long as the front sensor is b...

Page 16: ...as not been used for an extended period of time the shaded sections of needle bar and upper looper guide have to be lubricated Take care not to pour too much amount of lubricating oil at the time of l...

Page 17: ...every four months 3 To extend the usage term this machine has equipped an oil filter Clean up this oil filter once every month and change it with a new one where necessary Needle cooling lubrication o...

Page 18: ...to replenish the looper compartment with grease 1 Remove grease replenishing rubber plug from the looper compartment 2 Replenish grease by means of a tip of screw driver or the like Use JUKI GREASE A...

Page 19: ...6 5 1 Threading 5 PREPARATION BEFORE SEWING MO 6814 MO 6804 WARNING Follow the procedures for threading Wrong threading can cause stitching troubles such as thread breakage stitch skipping and puckeri...

Page 20: ...17 MO 6814 44H MO 6816...

Page 21: ...18 MO 6816 50H MO 6816 60H...

Page 22: ...t No controls thread 2 Tension adjusting nut No controls thread 3 Tension adjusting nut No controls thread 4 Tension adjusting nut No controls thread 5 Tension adjusting nut No controls thread 5 2 Adj...

Page 23: ...less thread amount while sewing 1 Please use the needle DC 27 or the equivalents 2 Loosen the screw and take off the needle 3 Fully insert the new needle into the needle clamp hole with the needle rec...

Page 24: ...When you want to move the lever only slight ly use differential feed minute adjust screw 3 After the adjustment securely tighten differential feed adjusting nut 5 5 Adjusting the differential feed ra...

Page 25: ...ead exactly and then tighten the screw 2 Replace the lower knife 1 Loosen the screw and move the lower knife holder to the left Then tighten the screw a little 2 Loosen the screw Take off the lower kn...

Page 26: ...t plate appropriately 1 Loosen four screws Open top cover and detach it 2 Loosen the screw and move the needle bar to the desired height Then tighten the screw 3 Close top cover Tighten four screws Af...

Page 27: ...e upward and downward smoothly Then tighten the screw 4 To adjust to a proper pressure turn the screw clockwise will increase the pressure whereas turn it counter clockwise will decrease the pressure...

Page 28: ...presser foot from the throat plate surface The lift of the presser foot differs with the model Adjust the lift of the presser foot according to the model re ferring to the table shown below Then adjus...

Page 29: ...to 0 35 mm The height can be adjusted by loosening the screw 0 9 to 1 1 mm 0 3 to 0 5 mm 1 Turn the pulley to rise the feed dog the highest point 2 Loosen the screw and move the main feed dog up and d...

Page 30: ...the needle to 0 01 to 0 1 mm when the lower looper moves to the right toward the center line of the needle for the 2 needle models the left needle is used as the reference When the upper looper moves...

Page 31: ...ine of the needle should be 1 4 to 1 9 mm 50H 60H 1 6 to 2 3 mm 5 The relationship between the needle and the needle guard 0 1 to 0 2 mm Light contact 1 4 to 1 9 mm Adjust so that the clearance of 0 0...

Page 32: ...ible personal injury due to abrupt start of the machine be sure to start the following work after turning the power off and ascertaining that the motor is at rest 1 Open rear cover of the sewing machi...

Page 33: ...time Continuous input is enabled Short time This button is used for increasing the current numerical value on the function setting screen Long time Continuous input is enabled Short time This button i...

Page 34: ...Q R S T U V W X Y Z Display Arabian figures Arabian figures No How to press the button Function Short time This button is used for displaying the sensor values Long time Keeping this button held press...

Page 35: ...changed the function setting number the set value of the rel evant function setting number is displayed 4 Change the set value by pressing and 5 Confirm the set value by pressing If you have changed t...

Page 36: ...essed the foot pedal as far as it goes if the acceleration factor is excessively decreased 0 100 32 32 P009 Acceleration factor of the foot pedal for standing work 0 100 32 32 P013 Stop position selec...

Page 37: ...nction setting number P125 Model selection It is possible to select the operation of the automatic thread trimmer with this function setting number 0 OFF 1 Automatic constant speed thread trimming 0 1...

Page 38: ...ber is used for setting the number of stitches to be sewn at the end of sewing with the thread tension released continuously after the material has passed the inter mediate sensor Unit stitch 1 50 15...

Page 39: ...ed for setting the duration of suction until the suction set with P054 is stopped by pressing the hand switch Unit ms 0 2000 500 500 P056 Low pressure mode ON OFF If the supplied air pressure is low s...

Page 40: ...76 Front sensor irradiation intensity It is possible to adjust the output intensity of the front sensor light projecting side Unit This parameter cannot be changed to the initial value that has been f...

Page 41: ...ce It is necessary to set the counting method with the function setting number J13 0000 9999 0000 0000 J04 Selection of voice language This function setting number is used for selecting the voice lang...

Page 42: ...time is provided set U05 to 00 00 In this case no audio guidance is provided Caution If the break times 1 2 and 3 are provided it will be necessary to enter the start time and ending time of those bre...

Page 43: ...1 4 6500 6000 10 MO 6816S FH6 60H Extra high lift 2 5 6000 5500 11 MO 6816S DE4 30H E35 General 0 3 7000 6500 12 MO 6843S 1D6 40H General 0 3 7000 6500 13 MO 6804D 0E4 30H General 0 3 7000 6500 14 MO...

Page 44: ...uction continuing number of stitches P056 Low pressure mode ON OFF P057 Suction synchronization time P058 Continuous material feeding section ON OFF When any mode other than the manual mode is selecte...

Page 45: ...e of the P017 If you change the set value of the P017 from the initial value 1 Pedal to 0 Automat ic the sewing machine will automatically start running immediately after the front sensor has detected...

Page 46: ...display P018 Full automatic Semi automatic mode 1 Full automatic 0 Semi automatic 0 Semi automatic Function is not changed over under the manual mode P020 Automatic sensor ON OFF 1 ON 1 ON 0 OFF 1 ON...

Page 47: ...utomatic mode cannot be used Function setting No P022 In the case the intermediate sensor is set to ON with this function setting num ber P will be displayed on the operation panel when the intermedia...

Page 48: ...constant speed thread trimming is set with this function setting number P030 0 OFF 1 Automatic constant speed thread trimming Caution This function setting number is only enabled while DD23 is select...

Page 49: ...e material has passed the intermediate sen sor P041 Setting range 1 50 stitches Caution If the function setting number P041 Number of stitches to start releasing the tension at the end of sewing is se...

Page 50: ...interval appropriately Function setting No P054 Used for selecting the type of the suction operation for manual thread trim ming P054 0 OFF 1 Rear suction 2 Front and rear suction Caution In the case...

Page 51: ...the rear suction is set to OFF the rear suction operation will not be car ried out Selection of the auto lifter function Function setting No P066 Type of the auto lifter operation can be selected P06...

Page 52: ...he rear sensor are dis played only in the case DD23 is set select ed with the P125 Model selection setting of this function is enabled under the Service level Press or to exit from sensitivity display...

Page 53: ...If you want to cancel the entry of the threshold of the sensor before confirming it and restore the screen to the sewing screen press If you want to confirm the current entry of the threshold and res...

Page 54: ...elected the value set with this function setting number will be used as a correction value for the material detection threshold of the sensors P086 Setting range 0 800 When the standard fabric is sele...

Page 55: ...counter one by one The displayed number on the No of pcs counter on the LCD screen decreases immediately Function setting No U02 With this function setting number it is possible to change the number...

Page 56: ...n the case the descending order is selected the audio message will be given when the counter reaches zero 0 4 It is possible to reset the No of pcs counter by keeping and held pressed simultane ously...

Page 57: ...sed simultaneously to display the initialization screen all set values can be initialized to those stored in memory as described in 6 3 Function setting p 32 by pressing In the case you have turned th...

Page 58: ...20 2 40 3 70 30 3 60 4 60 40 Automatic restoration after waitig for three seconds 4 80 5 50 50 5 100 6 40 60 7 30 70 8 20 80 9 10 90 10 0 100 Brightness color temperature changing method is as shown i...

Page 59: ...ith the audio guidance Depending on the sewing machine op eration status while the audio guidance is being given the next audio guidance may begin before the current audio guidance is completed normal...

Page 60: ...ion setting No J06 J06 1 Small 2 Medium 3 Large Press to confirm the sound volume of the audio guidance The sound volume of the audio guidance is changed over to the confirmed setting immediately afte...

Page 61: ...d to the setting of the Month and day Press if you want to can cel this procedure and return to the normal sewing screen 3 When you press the Month and day B is displayed Change it with and if necessa...

Page 62: ...ute and Second Second Cancel Confirm Confirm 6 In the case the function setting number J05 Audio guidance is set to ON the audio guidance will be given according to the time you have set following the...

Page 63: ...the backlight when the operation panel is left without any operation can be set function setting No J11 J11 0 Backlight is not turned OFF Setting range 1 250 minutes Press to confirm the backlight tur...

Page 64: ...st or the like enters the USB connector a failure can be caused Insertion position of the USB thumb drive WARNING The device to be connected to the USB port should have the rated current value or less...

Page 65: ...return it to the stop position swiftly the sewing machine may malfunc tion depending on the relevant function setting Carry out the operation to start and stop the sewing machine without lifting your...

Page 66: ...vice operates Only for the DD22 model When you press the hand switch the chain off thread cutter and the suction device operate Only for the DD23 model In accordance with the setting on the operation...

Page 67: ...ght position Once every four months 1 Change the oil in the oil pan with new oil WARNING 1 Turn off the power switch before carrying out cleaning The machine may operate if the treadle is pressed inca...

Page 68: ...sary to discard the battery properly in accordance with the relevant local laws and regulations 1 Detach electrical box from the sewing ma chine head 2 Remove screw from electrical box Re move hooks a...

Page 69: ...screws at four locations to take out PCB 6 installed at the lower part of the front face of the PCB is the battery for clock 7 Remove the main body of the battery together with its case from the PCB B...

Page 70: ...ascertained in prior to the actuation of the machine that no screws are loosened and no components come in contact with one another Model A C A 04 14 16 B A 0 05 to 0 2 mm D D E E G F A B C D E F G M...

Page 71: ...at the motor is at rest 1 Position of the needle thread take up and the needle thread guide MO 6804 MO 6814 6mm B A C B MO 6816 A C 5 5mm D 7 5mm MO 6814 MO 6816 A B C A B C D Excluding 30P 60H 6 5 6...

Page 72: ...16 50H 33 5 10 5 20 28 5 9 MO 6816 60H 33 5 10 5 20 38 9 MO 6816 30P 21 5 10 5 28 35 15 1 to 2 mm 2 Position of the looper thread take up and the looper thread guide Unit mm 3 Adjustment value of the...

Page 73: ...aced in its correct position E17 The cloth plate cover is not placed in its correct position E18 The eye protection cover is not placed in its correct position E19 Electrolytic capacity connection err...

Page 74: ...71 1200 Unit mm Difference 2 10 TABLE DRAWING Black scale marker line A A B B...

Page 75: ...590 28 0 23 0 255 310 613 773 1200 1020 0 60 130 150 190 303 470 550 830 19 5 0 77 185 420 301 R40 R20 R40 R20 R20 R40 2 2 47 4 R10 10 9 R20 355 45 4 4 10 10 40 3 5 25 5 5 13 205 435 525 R10 370 65 2...

Page 76: ...73 Auxiliary table for fully sunken type table Unit mm Difference 2 Weight 4 25 kg 5...

Page 77: ...159 235 255 370 289 365 335 515 77 200 0 318 420 60 0 218 325 150 130 303 435 470 370 525 820 170 0 230 125 280 310 775 1200 1020 2 2 613 590 40 3 45 19 5 4 25 5 4 13 10 4 4 10 3 R10 R 1 0 4 R10 3 R2...

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