JUKI LBH-1790AN Instruction Manual Download Page 73

Page: 73 / 88

– 70 –

Loosen nut

❶

and adjust the position with stopper

spring

❷

so that the distance from the front end of

machine bed to bobbin presser

❸

is 9.5 to 15 mm

when the sewing machine stops. Then tighten nut

❷

❶

❷

❸

3. Adjusting the presser bar pressure

4. Adjustment of the bobbin presser unit

9.5 to 15 mm

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the fol

lowing work after turning the power off and ascertaining that the motor is at rest.

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the fol

lowing work after turning the power off and ascertaining that the motor is at rest.

The presser bar pressure should be set on a pattern-by-pattern basis.

1) Set the mode to the input mode.

Under the input mode where SET READY LED

goes out, change of the pattern is enabled.
If the current mode is the sewing mode, press

READY key

❷

to change over the mode

to the input mode.

2) Invoke "S090 Presser bar pressure"

Press EDIT key

❽

. Then, press ITEM SE-

LECT key

❻

to select presser bar pressure

Increasing the set value of S090 will increase the
presser bar pressure to help prevent puckering.

❽

❼

❻

❷

Summary of Contents for LBH-1790AN

Page 1: ...LBH 1790AN 1795AN INSTRUCTION MANUAL ...

Page 2: ...of the presser type 26 5 Performing pattern selection 27 6 Changing needle thread tension 28 7 Performing re sewing 29 8 Winding bobbin thread 30 9 Using the counter 31 10 Using the initial value pattern 33 11 Changing sewing data 34 12 Method of setting sewing data with without edit 36 13 Sewing data list 37 14 Copying sewing pattern 43 15 How to edit check the data other than sewing data 44 16 U...

Page 3: ...essure 70 4 Adjustment of the bobbin presser unit 70 5 Thread tension 71 6 Replacing the fuse 72 VII GAUGE COMPONENTS 73 1 Cloth cutting knife 73 2 Throat plate 73 3 Presser 73 VIII ERROR CODE LIST 74 1 How to operate the sewing machine in the case an error is displayed 74 2 Operation procedure to be followed when a message is displayed 80 IX TROUBLES AND CORRECTIVE MEASURES 81 X DRAWING OF THE TA...

Page 4: ... adequate 3 Be sure to return the starting pedal to the home position after the machine has started to run 4 This machine is provided with a machine head tilt detector so that it cannot be operated in the state that the machine head is tilted When operating this sewing machine turn the power switch ON after setting the sewing machine to the bed base properly Subclass S Major application Buttonholi...

Page 5: ... of nee dle up by reverse run Cloth cutting knife drive method Motor driven crank system Standard sewing shape 31 kinds Number of patterns stored in memory 99 patterns Mass Machine head 55 kg Control box 5 5 kg Power consumption 370 VA Operating temperature range 5 C to 35 C Operating humidity range 35 to 85 No dew condensation Line voltage Rated voltage 10 50 60 Hz Motor used 3 phase 200 to 240 V...

Page 6: ...elet round type 18 Square radi al type 19 Square semilunar type 20 Square round type 21 Square straight bar tack ing type 22 Square taper bar tacking type 23 Radial semi lunar type 24 Radial round type 25 Semilunar radial type 26 Semilunar round type 27 Bar tacking 28 Bar tacking right cut PANEL DISPLAY PANEL DISPLAY PANEL DISPLAY PANEL DISPLAY PANEL DISPLAY PANEL DISPLAY PANEL DISPLAY PANEL DISPL...

Page 7: ...n LBH 1790AN LBH 1795AN consists of the following components Power switch Machine head LBH 1790AN LBH 1795AN Operation panel Control box MC 602 Presser lifting and starting pedal Thread stand device Power switch EU type ...

Page 8: ... persons or more when the machine is moved 1 Fix toothed washers and rubber cushions on control box At four locations Tighten the toothed washers so that their height becomes 0 8 mm 2 Fix control box mounting plate with plain washers and nuts At four locations Fix the mounting plate while fitting the screw in the U groove in the mounting plate At four locations 0 8 mm ...

Page 9: ...a staple 3 Pass four bed base fixed screws through bed base 4 Set rubber cushions to holes 4 places for fixing bed base and fix bed base 5 Fix head support bar on table 6 Place the main unit of the sewing machine on bed base Then connect the pedal and pedal sen sor with connecting rod supplied with the unit ...

Page 10: ...on the power box Connect the cable which matches the specifications Table Red Black Green Yellow White Control box Power source cord Plug Power switch GND AC200 V AC220 V AC240 V Connecting three phase 200V 220V and 240V Green Yellow Red White Black Green Yellow Red Black White Never use under the wrong voltage and phase Power indication tag Rating plate For example In the case of 200V ...

Page 11: ... perform the work by two persons or more when the machine is moved 5 Tilting the sewing machine head When tilting the sewing machine head tilt quiet ly the sewing machine until head support bar comes in contact with it 1 Make sure that sewing machine head support bar is placed on the table before tilting the sewing machine 2 To protect fall down be sure to tilt the sewing machine in a level place ...

Page 12: ... interfere with hook oil shield plate when tilting raising the former Adjust the mounting of the hook oil shield plate to prevent scattered from the gap between the bed and cover pot 6 Connecting the machine head tilt detector Connect machine head tilt detector with connector located on the machine head side 8 Installing the operation panel Fix operation panel on the table with four wood screws Pa...

Page 13: ... cover 2 Connect the cord to the connector on the MAIN PCB as illustrated in the figure below 3 Fix the earth cord with setscrew 4 Install control box cover 5 Fix control box cover with the washers spring washers and nuts MAIN circuit board CN49 MAIN INT A CN34 Panel CN40 MAIN INT C CN39 Pedal CN17 Main motor cord CN32 MAIN INT B CN44 CN34 CN39 CN49 CN40 CN32 CN17 CN15 Earth cord Earth cord ...

Page 14: ...ed When you tilt the sewing ma chine make sure that the sewing machine head support bar is placed on the table 2 Bring the cords under the table into the control box 3 Put the cord brought into the control box through cord exit plate and fix cable clip band 4 Install control box lid with four set screws ...

Page 15: ...m the disperse of needle breakage When placed longitudinally When placed horizontally Operator Operator 12 Fixing the temporary stop switch The temporary stop switch has been in the state as shown in figure A at the time of delivery Loosen setscrew and set the switch in the state as shown in figure B and fix it with setscrew to gether with setscrew supplied with the machine A B ...

Page 16: ...od so that two side holes in the thread guide rod face the thread guide Thread guide rod 14 Installing the thread stand 1 Assemble the thread stand and set it in the hole in the top right corner of the machine table 2 Tighten locknut to fix the thread stand ...

Page 17: ... auxiliary table with four bolts 2 Temporarily fix auxiliary table on the sewing machine bed with two bolts 3 Fix four bolts while removing a clear ance between the sewing machine bed and auxiliary table 4 Fix two bolts while aligning auxiliary table with the top surface of the sewing machine bed ...

Page 18: ...nk Supply oil in the case the oil cannot be visually observed from the front side of the oil tank 2 Adjusting the lubrication for the sewing hook The amount of oil is adjusted with oil amount adjusting screw Amount of supplied oil is reduced when turning the screws clockwise When you first operate your sewing machine after set up or after an extended period of disuse re move the bobbin case and ap...

Page 19: ... 0 5 mm 3 How to check the hook oil quantity 1 In preparation for checking the hook oil quan tity cut a sheet of paper to make a piece of paper size of which is approximately 40 mm x 100 mm 2 After the adjustment of the oil quantity start the sewing machine at a high speed 3 600 sti min by 100 times or more 3 Insert the piece of paper prepared in Step 1 into the clearance provided between the hook...

Page 20: ...n case 3 Threading the needle thread Pass the needle thread in the order to as shown in the figures The threading can be done easily by using the needle threader supplied with the machine Change the thread guide threading method according to the thread to be used Synthetic filament thread Cotton thread spun thread Whip stitch Purl stitch Bobbin case Bobbin WARNING To protect against possible perso...

Page 21: ...es up WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the fol lowing work after turning the power off and ascertaining that the motor is at rest Turning tension adjust screw clockwise will increase bobbin thread tension and turning it counterclock wise will decrease the tension Adjust the bobbin thread tension to lower for synthetic filament ...

Page 22: ...he setscrew WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the fol lowing work after turning the power off and ascertaining that the motor is at rest Knife size Indication of mm 1 4 6 40 3 8 9 50 7 16 11 10 1 2 12 70 9 16 14 30 5 8 15 90 11 16 17 50 3 4 19 10 13 16 20 60 7 8 22 20 1 25 40 1 1 8 28 60 1 1 4 31 80 1 3 8 34 90 1 1 2 38 10 1 to ...

Page 23: ... 20 V OPERATION OF THE SEWING MACHINE 1 Explanation of the operation panel switch ...

Page 24: ...ed alternately ITEM SE LECT key This key is used to select the data No and other kinds of data THREAD TEN SION key This key is used to select the thread tension display Every time this key is pressed the display item is changed over as described below S052 Thread tension at the right parallel section S053 Thread tension at the left parallel section first cycle of double stitching S054 Thread tensi...

Page 25: ...after the purchase of your sewing machine the model confirmation screen is displayed Press READY key In the case the power OFF screen C is dis played after the completion of procedure de scribed in 1 turn the power OFF once Then carry out the procedure described 1 again When Error E001 screen B is displayed turn the power OFF A B C ...

Page 26: ...ng data p 34 have been registered Select the pattern No you sesire to sew from among these numbers The No with which the pattern has not been registered is not displayed 4 Set the sewing machine to sewing possible state When READY key is pressed SET READY LED lights up to show that the sewing is en abled 5 Start sewing Set the sewing product to the presser portion and operate the pedal to start th...

Page 27: ...he pedal type 1 Call the pedal type setting parameter Keep MODE key held pressed for three seconds under the input mode where SET READY LED goes out Then the MEMORY switch level 2 is displayed on the menu Select the target item with ITEM SELECT key and press EDIT key Then the memory switch level 2 edit screen A is dis played When the pedal type selection parameter is not displayed press ITEM SELEC...

Page 28: ...ing starts when the second step of the pedal is depressed 4 End of sewing Presser automatically goes up to Maximum position Initial position Presser Maximum po sition 1 Setting of sewing product 2 Confirmation of setting of sewing product Presser comes down to Intermediate position when the first step of the pedal is depressed 3 Confirmation of start of sewing Presser comes down to Cloth setting p...

Page 29: ...n the sewing machine referring to 2 Table of presser type below 4 Input of the presser type Set type 5 when using the presser other than type 1 to 3 Change Presser size width and Presser size length of the memory switch level 1 to adjust to the press er to be used Refer to V 21 Method of changing mem ory switch data p 54 When using type 5 with stitch width of 6 mm or more and 41 mm or more in leng...

Page 30: ...n screen Pattern No A which is currently selected is displayed 3 Select the pattern Press DATA CHANGE key and the patterns which have been registered are changed over in order and displayed Here select the No you desire to sew 2 Selection by means of the register key For this sewing machine it is possible to register a desired pattern No to the PARAMETER REGISTER key When the pattern is registered...

Page 31: ...ng to the table For the tension other than that at parallel section and bar tacking section refer to V 11 Chang ing sewing data p 34 and V 21 Method of changing memory switch data p 54 For the eyelet radial shape set the bar tacking tension first to approximately 120 and make the bal ance of stitches Set value of tension at parallel section and bar tacking section Purl stitch and Whip stitch Purl ...

Page 32: ...isplayed 1 Release the error Press RESET key to release the error Then step motion screen C is displayed 2 Return the presser to the sewing product setting position Press again RESET key and the presser returns to the sewing product setting position 3 Perform again the sewing work from the start When stop switch A is pressed during sewing operation the sewing machine interrupts sewing and stops At...

Page 33: ...ased Press PRESSER and WINDER key or depress the pedal to stop the sewing machine Then remove the bobbin and cut bobbin thread with thread trimmer retaining plate Press PRESSER and WINDER key and the sewing machine stops and returns to the normal mode Depress the pedal and the sewing machine stops while the bobbin thread winding mode stays as it is Use this way when winding bob bin thread around p...

Page 34: ...ong the kinds of counters below 3 Change of counter set value Press ITEM SELECT key to display the set value C of the counter in reverse video Press DATA CHANGE key and input the set value until count up is reached 4 Change of existing counter value Press ITEM SELECT key to display the current value D of the counter in reverse video Press RESET key and the value on the way of counting can be clear...

Page 35: ...cle or one continuous stitching is performed the existing value is counted up When the existing value is equal to the set value count up screen is displayed No of pcs DOWN counter Every time one cycle or one continuous stitching is performed the existing value is counted down When the existing value is reached to 0 count up screen is displayed Counter not used 3 Count up releasing procedure When c...

Page 36: ...ith DATA CHANGE key It is possible to select the shape from among 12 shapes at the time of your purchase However it is possible to select the shape from among maximum 31 shapes by increasing the shape selection level K004 Refer to V 21 Method of changing memory switch data p 54 4 Perform trial sewing Press READY key to set the mode to the sewing mode Then it is possible to perform sewing and the s...

Page 37: ...ch changes numerical value and that which selects pictograph No such as is attached to the data item which changes numerical value Increase or decrease the set value with DATA CHANGE key to change the value No such as is attached to the data item which selects pictograph Pictograph can be selected with DATA CHANGE key For the details of sewing data refer to V 13 Sewing data list p 37 Pictograph sh...

Page 38: ...and is the edit position under selection Press DATA CHANGE key while the character is being selected the character can be selected Press RESET key to delete the character which is being selected When you keep RESET key held pressed for one second the data name can be deleted Change the pattern data name by carrying out the aforementioned procedure in repetition The characters that can be used for ...

Page 39: ...setting is enabled If the current mode is the sewing mode press READY key to change over the mode to the input mode 2 Call sewing data with without edit changeover screen Press MODE key Select 05 Sewing parameter edit select Then data edit enable disable changeover screens A and B are displayed 3 Select sewing data you desire to change over Press ITEM SELECT key and select sewing data item C you d...

Page 40: ...llel section 2 00 to 2 00 0 05 mm S004 Knife groove width left This item sets the clearance between cloth cutting knife and left parallel section 2 00 to 2 00 0 05 mm S005 Overedging width left This item sets the overedging width of left parallel section 0 10 to 5 00 0 05 mm S006 Ratio of right and left shapes This item sets enlargement reduction ratio of right side shape making the knife position...

Page 41: ...let of eyelet shape 1 0 to 10 0 0 1 mm 1 S015 Number of stitches of eyelet shape This item sets number of stitches in the upper 90 of eyelet shape 1 to 8 1 1 S016 Eyelet width This item sets crossuise size of the inside of eyelet shape Actual needle entry point is the dimension to which S004 Knife groove width left is added 1 0 to 10 0 0 1 mm 1 S017 Eyelet length This item sets lengthwise size of ...

Page 42: ...S033 Compensation of double stitching width This item sets amount to narrow overedging width of 1st cycle when setting double stitching 0 0 to 2 0 0 1 mm 3 S034 Number of times of basting This item sets number of times of basting 0 to 9 1 time Without basting With basting Setting of number of times S035 Basting pitch This item sets pitch at the time of performing basting 1 0 to 5 0 0 1 mm 3 S036 R...

Page 43: ...tension 1st cycle of double stitching This item sets needle thread tension at left parallel section of 1st cycle at the time of double stitching 0 to 200 1 2 3 S054 Right parallel section tension 1st cycle of double stitching This item sets needle thread tension at right parallel section of 1st cycle at the time of double stitching 0 to 200 1 2 3 S055 Tension at 1st bar tacking section This item s...

Page 44: ...his item sets start position of tie stitching in cross wise direction at the start of sewing 0 0 to 2 0 0 1 mm 2 S067 Tie stitching width at the end of sewing This item sets tie stitching width at the end of sew ing 0 1 to 1 5 0 1 mm S068 Number of stitches of tie stitching at the end of sewing This item sets number of stitches of tie stitching at the end of sewing 0 to 8 1 S069 Lengthwise compens...

Page 45: ...ing This item sets width of going side of bar tacking shape Shape Nos 27 28 29 and 30 of S001 0 1 to 10 0 0 05 mm S088 Pitch of coming This item sets sewing pitch of coming side of bar tacking shape Shape Nos 27 28 29 and 30 of S001 0 200 to 2 500 0 025 mm S089 Width of coming This item sets width of coming side of bar tacking shape Shape Nos 27 28 29 and 30 of S001 0 1 to 10 0 0 05 mm S090 Presse...

Page 46: ...nvenient to copy the initial value pattern Refer to V 10 Using the initial value pat tern p 33 3 Call copy screen Press COPY key and copy screen A is displayed 4 Select pattern No of copy destination Pattern No B which is not used is displayed Press DATA CHANGE key to select a number to be used for copying When you desire to erase the pattern select the garbage can 5 Start copying When READY key i...

Page 47: ... the input mode 2 How to invoke the mode screen Press MODE key to display the mode screen operator level Then keep MODE key held pressed for three seconds to display the mode screen service level On each level mode screen the menu items listed in the table below are displayed Display level Menu on the mode screen Operator level Memory switch 1 Version display Communication Regist of parmtr key Sew...

Page 48: ... with without edit p 36 for details 6 USB format Refer to the Engineer s Manual for details 7 Check parogram Refer to the Engineer s Manual for details 8 Pedal VR adjustment Refer to V 24 How to adjust the pedal variable resistor p 60 for details 9 Adjustment of contrast Refer to V 25 How to adjust the contrast p 61 for details 10 Memory switch 2 Refer to V 22 Memory switch data list p 55 for deta...

Page 49: ...stration key setting screen can also be displayed by keeping the parameter registration key you want to edit held pressed 3 Select parameter Item B which can be registered to the key is displayed Press ITEM SELECT key to select the item to be registered Items which can be registered are sewing data parameters of memory switches level 1 and pattern Nos In addition when trash can is selected registe...

Page 50: ...election is enabled If the current mode is the sewing mode press READY key to change over the mode to the input mode Only under the input mode the continuous sew ing data selection is enabled 2 Select continuous stitching Press ITEM SELECT key to select the continuous sewing screen A Press DATA CHANGE key to select the continuous sewing data No B to be sewn 3 Perform sewing When READY key is press...

Page 51: ... edit point is displayed in reverse video When the edit point is carried to the last piece of data the additional indication pictograph is displayed if there is an available pattern number If you bring the edit point forward further the data name will be the edit point When you press the EDIT key while the edit point is being selected the edit point data can be changed In the case the edit point i...

Page 52: ...s pressed insertion of the pattern data is cancelled and the mode changes over to the sewing mode When RETURN key is pressed insertion of the pattern data is cancelled and the mode chang es over to the input mode Input is completed by the steps above For the continuous stitching however input all data within the range of the presser size Error message will be shown when the data exceeds the range ...

Page 53: ... input mode Only under the input mode selection of the cycle data is enabled 2 Select cycle stitching data Press ITEM SELECT key and patterns which have been registered are changed over and displayed in order Cycle data No and continuous stitching data No which have been registered after the last registered pattern No are displayed Here select the cycle data No which you desire to sew 3 Perform se...

Page 54: ...everse video When the edit point is carried to the last piece of data the additional indication pictograph is displayed if there is an available pattern number If you bring the edit point forward further the data name will be the edit point When you press the EDIT key while the edit point is being selected the edit point data can be changed In the case the edit point is the pattern number The addi...

Page 55: ...ed and the mode changes over to the sewing mode When RETURN key is pressed insertion of the pattern data is cancelled and the mode chang es over to the input mode 6 Creating new cycle data Press COPY key under the input mode to call the copy screen Then press ITEM SELECT key to select the new creation pictograph This enables the creation of new cycle data When you press DATA CHANGE key while the n...

Page 56: ... CHANGE key For the details refer to V 22 Memory switch data list p 55 3 Set the function of the plural motions of cloth cutting knife to effective Next press again ITEM SELECT key to call Function of the plural motions of cloth cutting knife D Then set the plural motions of cloth cutting knife to the effective status with DATA CHANGE key For the details refer to V 22 Memory switch data list p 55 ...

Page 57: ...s screen the memory switch data level 2 can be selected 3 Select memory switch data to change Press ITEM SELECT key and select the data item which you desire to change 4 Change data There are one data item to change the numerical value and the other data item to select the pictograph in the memory switch data No such as is attached to the data item to change the numerical value Set value can be ch...

Page 58: ...ion of basting for sewing together setting 0 to 200 1 60 U009 Soft start speed setting 1st stitch 400 to 4200 100 sti min 800 sti min U010 Soft start speed setting 2nd stitch 400 to 4200 100 sti min 800 sti min U011 Soft start speed setting 3rd stitch 400 to 4200 100 sti min 2000 sti min U012 Soft start speed setting 4th stitch 400 to 4200 100 sti min 3000 sti min U013 Soft start speed setting 5th...

Page 59: ...edle thread trimming motion start distance Distance from the start of sewing to the start of needle thread trimmer release motion is inputted 0 to 15 0 0 1 mm 1 0 mm U024 Bobbin thread trimming motion start distance Distance from the start of sewing to the start of bobbin thread trimmer release motion is inputted 0 to 15 0 0 1 mm 1 5 mm U025 Counter updating unit Unit to update sewing counter is s...

Page 60: ...cally limited to 3300 sti min 400 to 4200 100 sti min 3600 sti min K008 Compensation of unsteady needle thread tension Output value of needle thread tension is wholly offset and compensated 30 to 30 1 0 K009 Output time of needle thread tension changed value When data related to needle thread tension is changed the changed value is output as long as the set up time 0 to 20 1s 0s K010 Function of o...

Page 61: ...er speed 1 to 3 3 K023 Work clamp error detecting position E083 The height at which the work clamp height error is detected is set If it is set at zero 0 the error will not be detected 0 to 10 0 0 1 7 5 K025 1 Selection of the shorter thread remaining function With or without the shorter thread remaining function is selected using this memory switch Without the shorter thread remaining function K0...

Page 62: ... can be maximized by pressing ITEM SELECT key and can be minimized to 400 sti min by pressing ITEM SELECT key The maximum sewing speed will be either the speed set for the pattern data with S084 Maxi mum speed limitation or with K007 Maximum restricted speed setting whichever the lower 1 The sewing speed that can be changed on the sewing speed change screen is the actual sewing speed to be employe...

Page 63: ...dal variable resistor value is changed and displayed in reverse video successively Select the target destination of registration The destination can be selected from the five ones shown in the table at the right 3 Registering the pedal variable resistor value Press EDIT key to register and display the pedal variable resistor value on the selected destination of registration When you press DATA CHA...

Page 64: ... contrast adjustment screen A is dis played 2 Adjusting the contrast The contrast can be adjusted in five steps from 0 brightest to 4 darkest by pressing DATA CHANGE key 25 How to adjust the contrast Operation of the data change key can be disabled by setting the key lock Refer to the Engineer s Manual for how to invoke the key lock setting function and how to set the key lock 26 How to set the ke...

Page 65: ...th created with the sewing machine Vector form data VD00 XXX VDT Data on needle entry points created with the PM 1 The data form is commonly used among JUKI sewing machine 27 Communication Refer to the Engineer s Manual for how to set the vector form data In the case the vector format data is taken out from the operation panel and saved in a USB thumb drive or a tablet and again returned to the op...

Page 66: ... the data in file No C B C 3 Selecting the communication direction Press ITEM SELECT key to display pic tograph A which shows the communication direc tion selection Press DATA CHANGE key to select the communication direction Data shown on the operation panel is written on the USB thumb drive Data stored on the USB thumb drive is read into the operation panel A ...

Page 67: ...inal on the IP panel until it will go no further Do not turn the power OFF while the data on the USB flash drive is being accessed USB specifications Conform to USB 1 1 standard Applicable devices 1 Storage devices such as USB memory USB hub FDD and card reader Not applicable devices CD drive DVD drive MO drive tape drive etc Format supported FD floppy disk FAT 12 Others USB memory etc FAT 12 FAT ...

Page 68: ...ion between the sewing machine and a tablet or smartphone bring the antenna of the tablet or smartphone near to NFC mark as shown in Fig 2 If the NFC communication has failed error message will be displayed on the tablet smartphone screen When the error message is displayed on the screen carry out the NFC communication again Precautions to be taken when handling NFC The position of the NFC antenna...

Page 69: ... of time the work descriptions for that period can be input through the operation panel The data on the input work description can be collected and displayed by means of JUKI Smart App Setting of irregular work should be carried by means of JUKI Smart App The set details can be checked on the operation panel 1 Keep MODE key held pressed for three seconds Then select 14 Setting the irregular work w...

Page 70: ... irregular work input screen are displayed Carry out setting of work items by means of JUKI Smart App 2 Work items can be checked by pressing ITEM SELECT key Press RETURN key to display the irregular work setting screen The work items are as listed below No Work items No Work items 01 Condition maintenance 08 Work meeting 02 Product arrangement 09 Transport 03 Thread change 10 Transfer 04 Record 1...

Page 71: ...ge into the gap between the bottom end of the needle bar and the throat plate where the bottom end of the needle bar touches the top of the part 2 B of the timing gauge 3 Loosen setscrew C of the hook sleeve and align blade point of the sewing hook with the center of needle hole Make adjustment so that a clear ance of approx 0 05 mm is provided between the needle and the blade point of the hook 1 ...

Page 72: ...d trimmer 1 Adjusting the thread grasping force of the needle thread trimmer If the needle thread trimmer fails to provide consis tent thread grasping force the needle thread can slip off at the beginning of sewing 1 If the thread grasping force of the needle thread trimmer has reduced loosen setscrews and detach needle thread trimmer 2 Slightly bend the top end of thread presser spring so that it...

Page 73: ...NING To protect against possible personal injury due to abrupt start of the machine be sure to start the fol lowing work after turning the power off and ascertaining that the motor is at rest The presser bar pressure should be set on a pattern by pattern basis 1 Set the mode to the input mode Under the input mode where SET READY LED goes out change of the pattern is enabled If the current mode is ...

Page 74: ...and turn it Turning it clockwise will in crease the pressure of the thread take up spring Turning it counterclockwise will decrease the pressure 2 Adjusting the thread take up amount of the thread take up lever The thread take up amount of the thread take up lever should be adjusted in accordance with the thickness of the sewing products so as to obtain well tightened stitches a For heavy weight m...

Page 75: ...g machine has stopped 2 Draw the power cord from the power receptacle after confirming that the power switch is turned OFF Then wait for more than 5 minutes 3 Remove four screws fixing the rear cover of the control box Then slowly open the rear cover 4 Grasp the glass section of the fuse to be re placed and remove it 5 Use the fuse with the specified capacity F1 fuse 5A For DC 60V power protection...

Page 76: ... V B2702047V00 5 8 15 9 M B2702047M00A 11 16 17 5 A B2702047A00 3 4 19 1 N B2702047N00 7 8 22 2 P B2702047P00 1 25 4 Q B2702047Q00A 1 1 4 31 8 S B2702047S00A Stitch width 5mm Marking AxB Type Standard S 40027553 S5 1 4x6 2 For knits K 40027554 K5 1 2x6 2 1 4x25 2 5x35 3 5x41 5 5x120 5x70 Type Standard S B1552781000A B1552782000 B1552783000 40008658 5x120 14523708 5x70 For knits K D1508771K00A D150...

Page 77: ...ible to re cover by reset Previous screen E018 Type of EER ROM is different When the mounted EEP ROM is different in type Turn OFF the power Previous screen E019 File size over File size to be read in is too large Possible to re cover by reset Previous screen E022 File No error There is no designated file in the external media Possible to re cover by reset Previous screen E023 Detection of step ou...

Page 78: ...ion error In the case the machine head model name does not match the main PCB model name Press the reset key Machine head selec tion screen E081 Needle rocking motor out of step detection error In the case the out of step of the X needle rocking motor is detected Turn OFF the power E082 Feed motor out of step detection error In the case the out of step of the Y feed motor is detected Turn OFF the ...

Page 79: ...edit screen S034 Basting stitch OFF Number of times During continuous sewing Standard screen E486 Eyelet knife length error Eyelet knife length is too short to form the shape in case of eyelet shape Possible to re en ter after pressing reset key During individual sew ing cycle sewing Sewing data edit screen S017 Eyelet knife length During continuous sewing Standard screen E487 Eyelet shape length ...

Page 80: ... error Width direction right only When stitching data exceeds the size of right only of width direction of presser Possible to re en ter after pressing reset key During individual sew ing cycle sewing Sewing data edit screen S003 Knife groove width right or S006 Ratio of right and left shapes During continuous sewing Standard screen E496 Presser size error Width direction left only When stitching ...

Page 81: ...er instantaneous cut detection When input power is instantaneously OFF Turn OFF the power E798 Needle throwing operation failure In the case the needle throwing operation does not match the number of stitches Turn OFF the power E799 Needle throwing operation failure In the case the needle throwing operation does not match the number of stitches Turn OFF the power E811 Over voltage In the case the ...

Page 82: ...n operation panel and main CPU When abnormality occurs in communication Turn OFF the power E916 Abnormality of communication between main CPU and main shaft CPU When abnormality occurs in communication Turn OFF the power E918 Abnormality of temperature of heat sink for main con trol p c b When temperature of heat sink of main control p c b is 85 C or more Turn OFF the power E943 Defectiveness of E...

Page 83: ...copying the pattern Press the return key Standard screen M584 Exit from the copy screen without copying the cycle pat tern Press the return key Standard screen M585 Exit from the copy screen without copying the continuous stitching pattern Press the return key Standard screen M610 Sewing ma chine model name check screen is dis played Refer to 22 Initialize the data according to the model name of t...

Page 84: ...se the thread tension at parallel section Decresase bobbin thread tension Purl stitching 0 05 to 0 1N Increase pre tension 28 18 4 Wobbling at the start of sewing 1 Thread tension at parallel section is too low 2 Position of needle thread trimmer is too high 3 Stroke of thread take up spring is too large Increase the thread tension at parallel section Lower the needle thread trimmer to such an ext...

Page 85: ...of sewing 40 11 Knife drops even when needle thread is cut 1 Check whether the thread breakage detec tor plate is properly adjusted Adjust the detector plate Refer to the Engineer s Manual 12 Needle breaks 1 Check whether needle is bent 2 Check whether needle comes in contact with the blade point of hook 3 Check whether needle thread trimmer comes in contact with needle when it opens 4 Check wheth...

Page 86: ...stopper for drawer B 4 ø2 0 5 depth 10 on the bottom surface Stand installing hole C ø16 0 5 depth 30 D 4 8 drilled hole E 50 drilled hole F 4 ø3 0 5 depth 20 G 30 drilled hole H 3 ø2 0 5 depth 10 on the bottom surface Main switch installing position I 17 drilled hole J Right side H I J Z Z at 6 locations ...

Page 87: ...er B 4 ø2 0 5 depth 10 on the bottom surface Stand installing hole C ø16 0 5 depth 30 D 4 8 drilled hole E 50 drilled hole F 4 ø3 0 5 depth 20 G 30 drilled hole H 3 ø2 0 5 depth 10 on the bottom surface Main switch installing position I 17 drilled hole J Right side K 2 2 drilling depth 10 undersurface 2 pedal switch installing position H I J Z Z at 6 locations K ...

Page 88: ... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S042 Compensation of right side position of basting mm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S044 Speed setting of basting sti min 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2...

Search results

Summary of Contents for LBH-1790AN

Reviews:

Related manuals for LBH-1790AN

Brands by name

Popular brands

JUKI LBH-1790AN, Instruction Manual

Search results

Summary of Contents for LBH-1790AN

Reviews:

Related manuals for LBH-1790AN

Brands by name

Popular brands