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11. 2000.
www.promelectroavtomat.ru

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Summary of Contents for Brother Homelock 1034D

  • Page 1 11. 2000. www.promelectroavtomat.ru...
  • Page 2 ................1 HOW TO USE THIS MANUAL ....................2 HOW TO ADJUST Height of needle bar ..................2 Position of the lowerlooper ................3 Timing of the lowerlooper .................. 4 Timing of the upperlooper .................. 7 5.1 Height of feed dog ..................... 9 5.2 Height of feed dog ...................
  • Page 3 This service manual is compiled as a guide for the repair and service of Brother Homelock model 929D. Almost all troubles or problems occurring on Homelock sewing machines which arise as the result of the user’s lack of knowledge or experience can be solved by following instruction book. It should be followed carefully because many faults are caused by misuse or carelessness.
  • Page 4 1. Raise the needle to its highest position. 2. Loosen the screw on the needle bar. 3. Position the needle bar so that the clearance between the point of the needle and the surface of the needle plate is as follows: 11.3 ~ 11.9 mm NOTE: When making this adjustment, keep the needle bar at its highest position by holding the handwheel.
  • Page 5 Clearance between point of lowerlooper and upper surface of needle plate should be between 2.0 ~ 2.4 mm when height of lowerlooper is at its highest position (or when distance between point of lowerlooper and center of left-hand needle is 12.5 mm). 1.
  • Page 6 (A) Adjust the lowerlooper thread through-feed and lowerlooper 1. Loosen set screw A and align the top surface of the lowerlooper thread through-feed with the top surface of the lowerlooper. 2. Firmly tighten set screw A . NOTE: Incorrectly setting the timing causes the lowerlooper thread through-feed to rub against the feed dogs causing the lowerlooper thread through-feed knob to operate incorrectly.
  • Page 7 (C) (D) (C) Adjust the needle and the movable needle guard 1. With the needle raised to 2.2 ~ 2.6 mm above its lowest position and the point of the lowerlooper contacting the right side of the needle, check that the distance between the lowerlooper and the movable needle guard is 1.2 ~ 1.5 mm and that the distance between the needle and the movable needle guard is 0 ~ 0.1 mm.
  • Page 8 How to use the gauge 1. Raise the presser bar and remove the presser foot and presser foot holder. 2. Lower the needle bar to its lowest position. 3. Position the spacer and gauge and tighten the screw. 4. Remove the spacer. 5.
  • Page 9 (OPTION) (A) Timing of the upperlooper against the needle 1. Insert the upperlooper shaft as far as possible into the upperlooper. 2. Position the upperlooper to its extreme left position. 3. Loosen the looper lever fixing screw and position the upperlooper so that the clearance to the pointed end to the left side of the needle is 5.6 ~ 6.0 mm.
  • Page 10 (B) Timing of the upperlooper in relation to the lowerlooper 1. Loosen the upperlooper screw. 2. Adjust the upperlooper not to bend the lowerlooper when the upperlooper travels nearest to the lowerlooper. NOTE: (a) When fastening the screw after adjustment, press the upperlooper slightly in order not to change the corrected position.
  • Page 11 1. Open the cloth plate and raise the feed dog to its highest position. 2. Set the sewing pitch at "3". 3. Loosen the set screw of the vertical adjusting shaft. 4. Turn the vertical adjusting shaft by the driver so that the clearance between the surface of the needle plate and the upper surface of the feed dog is to 0.9 ~ 1.1 mm at the center.
  • Page 12 (A) Adjustment for height of main feed dog 1. Open the cloth plate cover, and raise needle at its highest position by turning handwheel. 2. Set the sewing pitch at "3". 3. Loosen set screw of vertical adjusting shaft. 4. Turn vertical adjusting shaft by screw driver so that the clearance between upper surface of needle plate and point of feed dog is 0.9 ~ 1.1 mm.
  • Page 13 (Models) The standard timing of the feeding: Main feed dog should be at the same level as upper surface of needle plate when needle for overlocking goes down and point of it touches upper surface of needle plate. As the overlock needle is descending and about to enter the needle plate hole, the feed dog must be positioned at the surface of the needle plate.
  • Page 14 Before adjustment, remove the panel assembly. Then turn the handwheel and raise the needle to its highest position. 1. Raise the presser lever and loosen the screw securing the presser bar winding. 2. To adjust the height of the presser bar, raise the presser lever, and, at the point where the presser bar is horizontal, raise or lower it until the first step is 4.8 ~ 5.0 mm above the needle plate.
  • Page 15 1. Set the thread tension dial to "4" on the dial scale. 2. Insert a plate of approx. 0.5 mm (0.02 in.) of thickness into the right side slot of the thread tension dial "4" position on the dial scale and pull the notch of the dial clutch. Then while holding the plate, turn the dial to adjust the thread •...
  • Page 16 1. Lower the needle to its lowest position. 2. Loosen the set screw and position the thread take up below the thread retainer by 1.0 ~ 3.0 mm. 1. Loosen the set screw of the thread take-up. 2. Position the looper thread take-up and thread guide above, holding the screws on the looper thread take- ups at the distance shown in the illustration.
  • Page 17 If the knives are blunt, they will cause the fabric to pucker and uneven stitches. NOTE: (a) If one strand of thread can be cut off in front of or at the rear of the knife, the knife is sharp enough.
  • Page 18 (A) 1. Remove the arm cover and the cloth plate cover. 2. Remove the presser lever. 3. Slide the belt cover downward to remove it. 4. Remove the motor cover. (B) 5. Adjust the belt tension by moving the motor fastening bolt right and left so that the belt can be pushed down 5.0 ~ 6.0 mm when applying a pressure of 500g.
  • Page 19 Caution! Always be sure to turn off the power before carrying out the following operation. Changing the light bulb • Remove the lamp cover as shown in the illustration. • Loosen the light bulb cover set screw, pull up the light bulb cover and remove it. •...
  • Page 20 1034D - 18- H0080181 www.promelectroavtomat.ru...

This manual is also suitable for:

Homelock 929d