Habraken Machines HM820 Design seam machine Author: Jeannot Dinjens Date: 19 Jul. 11 Version: 1 Pages: 18 jeannot@habraken-machines.com Subject: Instruction manual Word in advance Thank you for choosing a Habraken Machines special product. This machine was specially designed and constructed to fulfil customer requirements. Please read this manual before operating this machine. Contact our support team for any inquiries or questions you might have regarding this machine. About this manual.
Habraken Machines Content HM820 – 867 & HM820 – 868 ......................................................................................................................... 1 Word in advance.............................................................................................................................................. 1 About this manual. ....................................................................................................................................... 1 Support. ..........
Habraken Machines 1 Introduction The HM820 is a development of Habraken-Machines for stitching a wide range of decorative seams. It is based either on an M-type DA-867 twin-needle, flat-bed, triple transport or an M-type Da-868, twinneedle, post-bed triple transport sewing head. • Revolutionary concept The HM820 is based on a revolutionary “rotating needlebar” concept develop by Habraken-Machines. Because of this concept, high-speed and precise needlebar rotation is achieved.
Habraken Machines 2.2 Controls At sewing head: 1) Intermediate backack 2) Needle up/down 3) Center guide 4) Stitchlength 5) Tension release 6) Not used 1 2 3 4 5 6 Efka V820 control panel. Decorative Stitching Control Unit 2.
Habraken Machines 3 Safety Operation of the machine is restricted to authorized personnel only. Operators and maintenance staff have to be familiar with Dürkopp Adler 867 or 868 sewing machine and Efka control units. Individual manuals of the DA 868, Da 868 and the Efka DA321 are integral part of the documentation of the HM820.
Habraken Machines 4 Decorative stitching control unit Decorative stitching is fully controlled by the so called Decorative Stitching Control Unit. All settings and selections related to decorative stitching are done here. In this chapter you will find a description off the user interface. 4.1 Power up ● Power on (Efka main switch) ● The display on the Decorative Stitching Control Unit will show the message “Now booting up” 4.
Habraken Machines 4.4 Setup Screen The Setup Screen offers the possibility to: 1. 2. 3. 4. 1 Set the “Reference Position” Active the “User Patterns” option Select the 0-backtack type Exit the screen with the “Back” button 2 3 4 During setup the machine is blocked. Setup screen 4.4.1 Reference position The reference position is used to determine all relevant positions related to needle bar rotation and transport.
Habraken Machines 4.4.1.2 Setting the reference position • Turn the machine for 2 stitches in sewing direction. • Continue turning the hand wheel until the arrow on the lefthand side of the wheel levels with the 60º indication on the wheel. • Press “Reset” on the display • The value “1” will overwrite the current setting.. 4.4.2 User Patterns Standard the HM820 offers a total of 16 different decorative stitching patterns. The HM820 also offers the possibility to upload custom patterns.
Habraken Machines 4.5.1 Factory patterns Default 16 factory designed patterns are offered. Switching between patterns is just a matter of pressing on the symbol of the desired pattern. It is possible to select patterns while sewing 4.5.2 User patterns In case “user patterns” is selected, only numbers will be displayed. 4.5.3 1-needle right Related to the selected needle set (2-needle, 1-needle right, 1 needle left), the appropriate patterns are displayed on the selection buttons. 4.5.
Habraken Machines 4.5.5 Machine Lock function In case the “Lock” button is pressed, the machine will be locked. This allowing the operator applying adjustments like threading to the machine without the danger of activating the machine by accident. The text STOP with the motor run-blockage symbol will be displayed on the V820 display. Pressing “Lock” again will set the machine to operation mode again. 4.5.
Habraken Machines 4.5.7 0 Bt (Zero backtack) Default at the start and end of a seam, the selected backtack on the Efka V820 panel is performed : • No backtack activated • Single backtack with n1 stitches • Double backtack with n1 + n2 stitches. On top of that the HM820 offers 3 additional types of backtack: • Cross in place • Short fwd cross • Short Rev cross To activate one of those 3 additional backtack types, the “0 Bt“ button should be pressed.
Habraken Machines 5 Air Supply To avoid serious damage if decorative stitching is operated with insufficient or no air pressure, the HM820 is equipped with an air pressure sensor. In case the HM820 is power up with low or no air pressure, the main screen is displayed. The machine can still be operated for maintenance purpose. Main screen As soon as the “1/0” button is pressed to start decorative stitching, an error message “ Check Air Supply” is displayed. Further operation is locked.
Habraken Machines 6 USB tool port Standard the HM820 is equipped with an USB tool port (just above the 25p machine interface connector. This port offers the possibility to upload future program changes or user patterns. The machine will be accompanied with a CD containing software and instructions for uploading new software or user patterns.
Habraken Machines 7 Operation 7.1 Threading Make sure the machine is switched off. Check &6.1 “Threading the needle thread” and &6.7 “Changing the hook-thread bobbin” of the 867 & 868 Instruction Manual for a detailed explanation of the threading. Check figure 7.1 for threading the Rotating Needlebar. Note: 7.2 It is recommended to use the supplied guiding tool. Start-up Perform a visual inspection of the machine and its environment before use. Make sure air pressure is available.
Habraken Machines • Press the “1/0” button to proceed to the Configuration screen • Press the Change button to select the appropriate needle set • Press the Continue button to proceed to the decorative selection screen Configuration screen • At this stage the control is ready for operation. • Pressing the pedal will start decorative stitching with the selected pattern • Check chapter 4 for a description of the options on the righthand side of the machine.
Habraken Machines 7.3 Special Efka DA321 parameters The HM820 mainly uses standard Efka parameter settings for machine classes DA 867 and DA 868. Parameters set differently are listed below. P P P P P P P P P P P P P 112 113 117 139 220 241 247 275 289 290 601 602 026 = 400 = 400 = 450 =1 =2 =9 = 26 = 17 = 950 = 41 =0 =0 =4 Start backtacking speed End backtacking speed DB2000 max.
Habraken Machines 7.
Habraken Machines Addendum ● ● ● ● DA 867 / DA 868 Instruction manual DA 867 / DA 868 Service manual Efka DA321 Parameter list FP-0 R PLC software IInndduussttrriiaall S Seew wiinngg A Apppplliiccaattiioonnss 18 (18)
