Sunday, June 05, 2016

Janome Sewing machine – Janome Sew mini delux – How to adjust the thread tension – How to adjusted the needle drop – How to adjust the motor belt – Home appliances repair and service

Category: Home Appliances Repair and Service

Contents of this article 

  • How to adjust the motor belt
  • How to adjust the needle swing 
  • How to adjust the thread tension 

Janome Sew mini delux

FACE COVER
1. Remove the face cover by removing the setscrew (A).
FRONT COVER
TO REMOVE
1. Remove the face cover.
2. Pull out the dial and remove the set screws (A) - (E).
3. Loosen the set screws (F) - (G).
4. Remove the front cover.
NOTE: Do not remove the set screws (H).
TO ATTACH
5. Follow the above procedure in reverse.
ADJUSTING THREAD TENSION
TO ADJUST
1. Remove the face cover and the front cover.
2. Turn the adjusting screw (C) in the direction of (A) when the upper thread tension is too tight.
Turn the adjusting screw (C) in the direction of (B) when the upper thread tension is too loose.
3. Attach the front cover and the face cover.
TO CHECK
The standard upper thread tension should be 75 - 90g when pulling the thread (polyester thread #50) with setting the tension dial at “4”. (Make sure the foot should be lowered.)
If the tension is out of the standard range, adjust it as follows:
ADJUSTING NEEDLE DROP POSITION
The clearance between the needle and side edges of the needle hole should be 0.2 mm or more when the maximum width zigzag stitch is selecte. And the neddle should drop in the center of the needle hole when the straight stitch is  selected.
TO ADJUST
1. Remove the face cover.
2. Select the straight stitch and the zigzag stitch.
3. Loosen the setscrew (A) and adjust the needle drop position by turning the eccentric pin (B).
NOTE: Adjust the direction of eccentric in the lower side.
4. Tighten the setscrew (A).
5. Attach the face cover.
ADJUSTING NEEDLE SWING
TO ADJUST
1. Remove the front cover.
2. Set the pattern selector dial at maximum zigzag width.
3. Loosen two setscrews.
4. Adjust the needle swing by turning the handwheel, while holding the worm so as not to rotate it, until the needle swing starts at 1.2mm above the needle plate after the needle has come out of the right side of the needle hole.
5. Tighten two setscrews.
6. Mount the front cover.
TO CHECK
Adjust the needle swing according to the following procedure, if the needle bar starts moving sideways while the needle is in the fabric when sewing the zigzag pattern (with maximum zigzag width).
ADJUSTING MOTOR BELT TENSION
The correct motor belt tension is when the deflection of motor belt is about 7mm - 9mm.
(When pushing the motor belt by finger with a 100 gram load.)
TO ADJUST
1. Remove the face cover and front cover.
2. Loosen the setscrews (A) and (B) and adjust the deflection.
4. Tighten the setscrews (A) and (B).