2 Select the pattern No. you desire to sew. When the power is turned ON, the data input screen is displayed. Pattern No. button. (B) which is selected at present. Product Information of LBHAN Series – JUKI Industrial Sewing Machine. Only spare parts designated by JUKI can be used for repairs. .. Computer- controlled, high-speed, lockstitch buttonholing machine, LBH, has the subclass.

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The Instruction Manual for these machines intended for the maintenance personnel and operators at an apparel factory contains operating instructions in detail.

Juki Automatic Sewing Machine LBH A, Speed: RPM, Rs /piece | ID:

Lubrication method Face plate section: Adjustment Procedures Results of Improper Adjustment 1. Throat plate Knife drop groove Edge of machine arm Adjustment excessively small, the knife of initial position of the knife installing base comes in contact Press MODE key 4 to enter memory switch level 2 of the adjustment mode.

Loosen setscrews 1 and adjust so that the longitudinal position time of trimming and cannot be of the trimmer is set to 0 to 3 mm from the center of the needle trimmed. Bobbin thread trimmer Caution Fix hexagon screw 1 when eccentric pin 2 is tilted in the direction of the arrow mark.

Adjustment Procedures Results of Improper Adjustment Loosen setscrews 2 in bobbin thread trimming origin detecting sensor installing plate 1, align the edges of the arrrow mark in the figure with each other, and tighten setscrews 2. Put the sewing machine in the bobbin thread trimming adjustment mode with level 2 of memory switch. For the backlash of the presser lifter gear, adjust the installing position of presser lifter motor 1 to remove the backlash.

Adjust so that backlash is 0. Standard Adjustment 3 Adjusting the presser lifter origin sensor 1 Adjusting the senor Draw backward. Align shaft end 1 of solenoid with the edge of thrust collar 2.

Adjusting the waiting position of the bobbin presser Loosen nut 1 and adjust the distance from screw 2 to the bobbin presser base to 5 mm. Adjust so that the distance from the top end of bobbin presser 4 to the front end of machine arm dimension as shown in the figure is 8 to 15 muki and tighten nut 1.

Cloth setting position 4: Origin of needle rocking stepping motor 4 can be adjusted with memory switch level 2 2. Loosen setscrew 2 in needle bar rocking lever, rear 1, and make a state that needle bar rocking frame 3 can move freely to the right and left.

Removing the timing belt 1 Loosen two coupling setscrews 1. When main motor 3 interferes with the presser lifter motor and it is difficult to remove it, loosen four setscrews in the presser lifter motor and slightly move the presser lifting motor to the side. Removing the timing belt 1 Remove the feed plate and the throat plate connection and loosen two setscrews 1 in the hook driving shaft bearing bush. Lightly loosen idler fixing screw 1 and idler fulcrum hinge screw 2, and tighten idler fixing screw 1 in the state that idler 4 is placed to timing belt 5 by pressing with tension spring 3.

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Then fix idler fulcrum hinge screw 2. Disassembling the face plate section 1 Remove the face plate and the needle. Remove the needle bar and neel bar bracket together with needle bar rocking frame 5. Removing the needle rocking motor 1 Remove the face plate section.

Strip off the tape and wipe off neatly the plane of washer 3. For the position of the stopper, refer to 3. Data change is possible.

Automatic Sewing Machine JUKI-LBH-1790

Sewing possible state Yellow: Item Setting range Edit unit Remarks Compensation of bar-tacking width, right Top of Bottom of Bottom of square square type straight bar- type tacking Item Setting range Edit unit Remarks 1st clearance 0.

This item is applied to all shapes. Item Setting range Edit unit Remarks Compensation of right side position of Speed setting of basting to rpm Item Setting range Edit unit Juoi ACT timing adjustment at the start of 1st bar- -5 to 5 1 stitch tacking This item adjusts needle thread tension juik start timing at 1st bar-tacking section.

ACT timing adjustment at the start of right -5 to 5 1 stitch overedging Lbh-1970 Setting range Edit unit Initial value Presser lifter maximum position 0 to Item Setting range Edit unit Initial value Cloth cutting knife lhh-1790 3.

How to use the pedal Refer to Instruction Manual. Item Setting range Edit unit Initial value Knife solenoid lifting time setting 5 to Knife cylinder lowering time Optional 5 to Y-feed motor origin compensation to 1 pulse 0. Lbh-7190 cutting length S Knife groove width, iuki S Knife groove width, left S Overedging width, left S Pitch at parallel section Kinfe groove width, right S Overedging width, left — Knife groove width, left — E Turn OFF the power. When data is not written in EEP-ROM or data is broken, data is automatically initialized and the initialization is informed.

Error code Display Description How to recover Place of recovery Presser size over of basting E Possible to re-enter after Sewing data edit screen When stitching data of basting exceeds presser size. When solenoid power of servo control p. Abnormality of temperature of heat sink for servo control p.

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However, when a larger capacity is required in case of the external input or the like, it can be upgraded to k byte EEPROM. Knife size inch B: Knife size mm C: Complete dry-head machine is RP bobbin case produced by installing non-lubrication Hook sleeve asm.

Turn OFF the power switch of the sewing machine. Remove the needle blh-1790 the cloth cutting knife from the sewing machine. Remove presser roller installing base 0 0. Remove setscrews 1 as shown in the figure below.

Juki LBH, Electronic Button Hole Machine

J commodity without notice. All rights reserved throughout the world. Page of Go. Page 13 Page 14 – Adjusting the rotary play of the cloth c Page 15 Page 16 – Adjusting the needle thread trimmer Page 17 Page 18 – Needle thread trimming adjustment mode Page 19 Page 20 – Adjusting the needle thread trimmer orig Page 21 Page 22 – Longitudinal and lateral adjustment of t Page 23 Page 24 – Adjusting the needle thread draw-in amou Page 25 Page 26 – Adjusting the bobbin thread trimming ori Page 27 Page 28 – Replacing the bobbin thread trimmer Page 29 Page 30 – Adjusting the presser lifter Page 31 Page 32 – Adjusting the presser lifter origin sens Page 51 Page 52 – Adjusting the timing belt of main shaft Page 57 Page 58 – Replacing the cloth cutting knife soleno Page 59 Page 60 – Replacing the cloth cutting knife soleno Page – Block diagram C Single phase to Page – Power circuit diagram 3-phase to Page – Power circuit diagram Single phase Page – Power circuit diagram Single phase V Table of Contents Add to my manuals Add.

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Computer-controlled, high-speed, lockstitch buttonholing machine 10 pages.

Computer-controlled, high-speed, lockstitch buttonholing machine 8 pages. High speed single needle lockstitch straight button holing 11 pages. Computer-controlled, high-speed, buttonholing machine 5 pages. Specifications Lubrication method Face plate section: Standard Sewing Shape List 2. Adjusting The Feed Timing Belt Tension 3 Adjusting the feed timing belt tension Standard Adjustment General drawing of feed mechanism Feed stepping motor Feed shaft Feed guide shaft 4 Knife drop position Standard Adjustment Knife should drop in juko center of the knife drop groove in the throat plate.

Page 27 Adjustment Procedures Results of Improper Adjustment Loosen setscrews 2 in bobbin thread trimming origin detecting sensor installing plate 1, align the edges of juk arrrow mark in the figure with each other, and tighten setscrews 2. Adjusting The Presser Lifter 10 Adjusting the presser lifter Standard Adjustment 1 Kbh-1790 the backlash of the presser lifter gear 1. Adjusting Each Sensor 4.

Various Data List 8. Page 75 Item Setting range Edit unit Remarks 1st clearance 0. Page 77 Item Setting range Edit unit Remarks ACT timing adjustment at the start of 1st bar- -5 to 5 1 stitch jjuki This item adjusts needle thread tension output start timing at 1st bar-tacking section. Memory Switch Data List 2 Memory switch data list 1 Level 1 Memory switch data level 1 are the motion data that the sewing machine has in common and the data that operate on all sewing patterns in common.

Page 81 2 Level 2 Press key for three seconds and it is possible to edit. Page 82 Item Setting range Edit unit Initial value Knife solenoid lifting time setting 5 to Knife cylinder lowering time Jukk 5 to Y-feed motor origin compensation to 1 pulse 0. Explanation Of Shape lbn-1790. Page 84 5 Radial straight bar-tacking type 6 Radial flow bar-tacking type S