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Global LP 19710745 Series Instruction Manual & Instruction For Service Manual

Single needle right hand postbed shoe machines
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  • Page 2: Table Of Contents

    Contents - part A - Instruction manual: 1. Proper use of the machine ..............................1 2. Description of the machine ............................... 1 3. Machine sub-classes and sewing categories ........................2 Sub-class ................................2 Sewing categories ..............................2 4. Survey of equipment ..................................2 Equipments ....................................
  • Page 3 Foreword This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations. The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.

  • Page 4: General Safety Instructions

    General safety instructions The non-observance of the following safety instructions can cause bodily injuries or damages to the machine. 1. The machine must only be commissioned of the instruction book and operated by persons with appropriate training. 2. Before putting into service also read the safety rules and instructions of the motor supplier. 3.

  • Page 5: Proper Use Of The Machine

    Part A - Instruction manual 1. Proper use of the machine The machine can be used in the shoe uppers production for sewing with simultaneous trimming of the lining edge. The machine is also used for setting together shoe parts and for decorative stitching. The combined feed provides for uniform slip-free feed of all sewn work layers.

  • Page 6: Machine Sub-Classes And Sewing Categories

    3. Machine sub-classes and sewing categories 3.1 Sub-class Table 1 Type of Top roller lift Reverse stitching Thread the machine trimmer Class-subclass Via knee Treadle Via electro- Via electro- Via hand Via electro- -sewing lever mag. + mag. + lever mag.

  • Page 7: Throat Plate

    4.1.5 Throat plate M 143 - throat plate 4.1.6 Throat plate inserts M 144 - insert for throat plate (for needle 60-80; trimmed edge 0.8) M 145 - insert for throat plate (for needle 80-110; trimmed edge 1.2) M 146 - insert for throat plate (for needle 110-140; trimmed edge 1.5) 4.1.7 Trimmer knife M 171 - trimmer knife 11165 x 2.7 4.1.8 Guide...
  • Page 8 Trimmed material lining of relatively stiff materials - max. 2.5 mm Distance between the needle axis and the work trimmer line 0.8 - 1.5 mm (according to sewing category) Power output of the work trimmer motor 25 W Stroke frequency of the work trimmer knife 3300 strokes/min (constant) Stroke range of the work trimmer knife 1,2 - 4,3 mm (adjustable)

  • Page 9: Operation Of The Machine

    6. Operation of the machine 6.1 Threading a thread Caution! Risk of injury! Before threading a thread, turn the main switch off and wait until the machine stops! Thread the threads as it is shown in picture. Caution! Not following the correct method of threading a thread may cause serious damage to the function of the machine.

  • Page 10: Regulating The Thread Tension

    6.4 Regulating the thread tension Fitting seam The thread tension must conform to the thickness of the sewn threads, thickness and hardness of sewn material (thin and soft material will fold with high tension) and the kind of seam. An ordinary fitting seam should be formed with stitches knit- ted in the middle of the sewn material.

  • Page 11: Needle Replacement

    6.5 Needle replacement Caution! Risk of injury! Before remowing and inserting the needle turn the main switch off and wait until the motor stops! - Turn with the hand wheel as far as the top needle (1) position has been reached. - Loosen the screw (2) and take the needle out.

  • Page 12: Reverse Stitching

    6.8 Reverse stitching The change of direction of sewn work can be mechanically controlled via a reverse stitching lever (1) by its depression in the arrow direction (down). The sub-class defines whether the machine has electromagnetic reverse stitching – see para- graph No.

  • Page 13: Appendix - Applies For The Double-Needle Post-Bed Sewing Machine With Trimmer 4281I-2

    APPENDIX applies for the double-needle post-bed sewing machine with trimmer 4281i-2 (the following chapters substitute the chapters on pages 2 -7, the other ones are the same) 4.1 Equipments (at least one of each from the following group of equipment is assembled) 4.1.1 Needles M 132 - needle 134 KKLR size 80 Schmetz M 133 - needle 134 KKLR size 90 Schmetz...
  • Page 14 6. Operation of the machine 6.1 Threading a thread Caution! Risk of injury! Before threading a thread, turn the main switch off and wait until the machine stops! Thread the threads as it is shown in picture. Caution! Not following the correct method of threading a thread may cause serious damage to the function of the machine.

  • Page 15: Electronic Control Of The Machine

    7. Electronic control of the machine (it is valid for sub-classes equipped with stop motor) 7.1 Control of sewing by means of control elements 7.1.1 Via treadle (treadle positions and function possibilities) The position of the treadle is read by the reader, which can recognise 16 levels.

  • Page 16: Adjustment Of Automatic Functions Via Control Panel For Stop Motor

    7.2 Adjustment of automatic functions via control panel for stop motor 7.2.1 By using stop motor Efka with panel V 810 Functioning pushbuttons engagement: Pushbutton P Recalling and program mode termination Pushbutton E Confirmation of program mode changes Pushbutton + Increase of value displayed in program mode Pushbutton -...

  • Page 17: Setting By Means Of Parameters

    Erv (SEv) XXX - end (fancy) bar number of stitches forwards Err (SEr) XXX - end (fancy) bar number of stitches backwards Note: The last section of end bar must have at least 3 stitches. Foot position adjustment by stopping at the seam (by neutral position of treadle) and after finishing seam (by neutral posi- tion of treadle): Setting is by means of pushbutton 3, arrow indication above...

  • Page 18: By Using Stopmotor Efka With Panel V 820

    ON/OFF thread trimmer: No. of parameter Value range Description of parameter of parameters Thread trimmer ON/OFF ON/OFF 7.2.2 By using stopmotor Efka with panel V 820 F G H I J K L M N O P Q Functioning pushbuttons engagement: Pushbutton P Call and termination of programming mode Pushbutton E...

  • Page 19: Adjustment By Means Of Buttons With Fixed Setting Function

    F G H I J K L M N O P Q Symbol P Automatic revolutions ON Symbol Q Left needle disconnected The arrows on the display indicate switching the functions which are displayed by symbols above the pushbuttons on. 7.2.2.1 Adjustment by means of buttons with fixed setting function Note: It is important to finish the seam in order to reach...

  • Page 20: Maintenance

    F G H I J K L M N O P Q - by depressing the pushbutton E you will pass in the given sequence to the following parameter - by depressing the pushbutton P down you will leave the mode of changing parameters Note: 1.

  • Page 21: Operating Instructions For Eventual Trouble Shooting

    Operating instructions for eventual trouble shooting Meaning of abbreviations: NP - Instruction manual SK - Instructions for service Note: When the machine is driven by a stop motor, it is indispensable to check up, before starting its repair, the setting of its parameters according to NP, part B, par.
  • Page 22 3.5 Needle too thick with regard to Use thinner needle. thickness of thread and sewn ma- terial. 4. Stitch skipping. 4.1 Needle incorrectly inserted. Insert needle according to NP, par. 6.5. 4.2 Too big distance between needle Set according to SK, par. 3.1.3 and 3.1.5. and hook point.
  • Page 23 11.2 Upper thread out of tensioning Thread upper thread according to NP, par. dishes and 2x caught by hook 6.1. point. 11.3 Insufficient gap between needle Set side position of the throat plate post and piercing hole from hook side. according to SK par.
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This manual is also suitable for:

Lp 1971-745 (aut) series

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