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Global CB2802 l CB2803 Instruction Manual

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Summary of Contents for Global CB2802 l CB2803

  • Page 3 6. MAINTENANCE INSTRUCTIONS: ( ADJUSTMENTS OF MECHANISM AND TIMING.) 6-1 ADJUSTING THE PRESSER FOOT LIFT. 6-2 ADJUSTING THE HIGH OF NEEDLE BAR AND 6-3 INSTALMENT OF LOOPER. 6-4 ADJUSTING OF LOOPER ( SETTING OF THE LOOPER.) 6-5 ADJUSTING THE NEEDLE AND LOOPER ( FRONT/REAR POSITION OF NEEDLE AND LOOPER.) 6-6 ADJUSTING THE NEEDLE AND REAR NEEDLE GUARD.
  • Page 4 1. BASIC SPECIFlCATlON: 1-1 SPECIFICATIO N: MODEL ......CS-2802. CB-2803 STITCH TYPE ....ISO 406. 407, 602. 605 APPUCATION ....GENERAL SEAMING OF KNITrc:: O MATERIAL SEWING SPE"D ... MAX. 5500 STITCH/MIN. 4500 STITCH/MIN FOR THE MACHINE WITH PULLS NEEDLE TO SE USED: SCHMETZ OR ORGAN UY128GAS #65--90.
  • Page 5 1-2 SUB-CLASS: CB-2802-40M/UTC l-sHAPE OF STITCH PI.ATE TONGUE. L:FOR LIGHT MATERIAL M:FOR MEDIUM TO HEAVY S: FOR SPECIAL PURPOSE NEEDLE DISTANCE: 40 4.0 mm 56 5.6 mm 4.8 mm 64 6.4 mm -- CB: CYLINDER TYPE 2. INSTALLATION: 2-1. MOTOR, BELT AND BELT COVER THE MAXIMUM SEWING SPEED OF THIS MACHINE IS 5500 s.p.m ..

  • Page 7: Semi-Submerged Installation

    2-3 SEMI-SUBMERGED INSTALLATION INSTALL THE MACHINE CORRECTLY REFERRING TO THE ILLUSTRATION. SET SCREWS ON SUPPORTING BOARD AND SET SUPPORTING BOARD ON MACHINE TABLE. THEN PUT RUBBER CUSHIONS ON SCREWS ON WHICH REST THE MACHINE SECURELY. RUBBER ClJSHION 3. LUBRICATION OIL AND COOLING OIL 3-1.

  • Page 8: Changing Oil

    3-3 CHANGING OIL FOR THE LONGER LIFE OF MACHINE, CHANGE LUBRICATION OIL COMPLETELY AFTER 250 HOURS (OR 4 WEEKS) OF INITIAL OPERATION. A. AFTER TAKING OFF BELT COVER, REMOVE V-BEL T FROM MOTOR PULLEY. AND REMOVE MACHINE HEAD FROM MACHINE TABLE. B.

  • Page 9: Needle Selection

    ·4_ NEEDLE 4-1 NEEDLE SELECTION NEEDLE UY128GAS OF SCHMETZ OR ORGAN IS TO BE USED. THERE ARE MANY SIZES OF NEEDLE, AND THE MOST SUITED NEEDLE TO THE THICKNESS AND THE KIND OF MATERIAL SHOULD BE SELECTED. 9 I 10 j 11 i JAPANESE SIZE METRIC s;z 4-2 HOW TO REPLACE THE �EEDLES...
  • Page 10 5. PROPER OPERATION AD-.JUSTMENT 5-1 PRESStJRE OF PRESSER FOOT TO INCREASE THE PRESSURE OF �RESSER FOOT, TURN ADJUSTING SCREW(B) CLOCKWISE AFTER LOOSENING LOCK NUT (A) AND TO DECREASE TURN IT COUNTERCLOCKWISI:. PRESSURE OF PRESSER FOOT SHOULD BE AS WEAK AS POSSIBLE SO LONG AS PRESSER FOOT CAN OPERATE PROPERLY. \LOOSE.

  • Page 11: Thread Tension

    5-2 THREAD TENSION DIFFERENT THREADS HAVE DIFFERENT TENSIONS AND EVEN SAME THREADS WILL HAVE DI F FERENT TENSIONS WHEN GO THROUGH DlFFERENT THREADING HOLES. EACH THREAD TENSI O N CAN BE ADJUSTED BY INDI V IDUAL TENSION NUT TO INCREASE THREAD TENSION. TURN TENSlON NUT CLOCKWISE, TO DECREASE THREAD TENSION TURN TENSI O N NUT COUNTERCLOCKWISE.

  • Page 12: Adjusting Differential Feed

    NOTE : IN CASE OF MACHINE WITH UT DEVICE ( LOWER THREAD TRIMMER) WHICH IS EQUIPPED WITH A MOTOR WITH AUTOMATIC NEEDLE POSmONING SYSTEM, MOTOR SWITCH MUST BE TURNED OFF WITHOUT FAIL WHEN CHANGING STIT C H LENGTH. 5-4 ADJUSTING DIFFERENTIAL FEED NORMAL DIFFERENTIAL FEED OR REVERSE DIFFERENTIAL FEED CAN BE SET FREELY BY TURNING KNOB (C).AS.DIFFERENTIAL FEED AND MAIN FEED IS DRJVEN INDIVIDUALLY.

  • Page 15: Adjusting Spreader Thread Take-Up

    5-7 ADJUSTING SPREADER THREAD TAKE-UP I. THE THREAD AMOUNT OF TOP COVER THREAD IS ADJUSTED BY SPREADER THREAD TAKE-UP. F OR S TANDARD POSITION, MOVE THE SPREADER THREAD TAKE UP ALL THE WAY UP TO THE HIGHEST POINT AND SEWING THREAD SHOULD LIGHTLY TOUCH WITH SPREADER TH R EAD TAKE-UP.
  • Page 18 6-5. THE CLEARANCE BE1WEEN LOOPER AND NEEDLE H . CB-2803 (3-NEEDLE) WHEN THE TIP OF LOOPER MEETS THE CENTER OF LEFT NEEDL E . THE CLEARANCE BE1WEEN THEM SHOULD BE 02 - 0.3 mm. WHEN THE TIP OF LOOPER MEETS THE CENTER OF MIDDLE NEEDL E, THE CLEARANCE BETW E EN THEM SHOULD BE MINIMAL.
  • Page 19 J/K. SETTING THE ANGLE AND TIMING OF REAR NEEDL E GUARD WHEN THE TIP OF LOOPER PASSES THE CENTER OF RIGHT NEEDLE, THE REAR NEEDLE GUARD WILL SLIGHTLY PU S H THE RIGHT NEEDL E FORWARD ABOUT 0.2 - 0.3 mm. AND AT THIS TIME, THE CLEARANCE BETWE_ E N LOOPER AND RIGHT NEEDLE IS 0 - 0.05 mm AND LOOPER WILL TOUCH MIDDLE NEEDLE SLIGHTLY .
  • Page 22 I. WHEN NEEDLE BAR AT THE LOWEST POSITION. THE CLEARANCE BETWEEN THE SURFACE OF TOP COVER THREAD GUIDE (A) AND THE UNDERSURFACE OF TOP COVER THREAD EYELET {B) IS 1.0 mm. SET THE THREAD HOLE OF TOP COVER THREAD EYELET ON THE CENTER LINE OF THE SLOT OF TOP COVER THREAD GUIDE, THEN TIGHTEN SCREW.

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