Eventual Trouble Shooting; Sewing Machine Doesn't Work; No Sewing; No Break The Thread - HIGHLEAD GL13138-1 Instruction Manual Parts Catalog

5. Eventual Trouble Shooting
5.01 Sewing Machine doesn't work
1) Terminal box and plunger are not connect. (According to 4.01)
2) Too loose belt
3) Sewing machine does not lubrication. (According to 4.12)
5.02 No sewing
I) Inconect threading. (According to 4.02)
2) Needle incorrectly inserted or damaged. (According to 4.09)
5.03 No break the thread
1) Incorrect threading. (According to 4.02)
2) Excessive thread tension. (According to 4.04)
3) Needle incorrectly inserted or damaged. (According to 4.09)
4) Incorrect thread size.
5.04 Stitch skipping
I) Needle incorrectly inserted or damaged. (According to 4.09)
2) Unsuited needle penetration and material. (According to 4.05)
3) Incorrect threading. (According to 4.02)
4) Excessively elastic material or excessively elastic thread. (According to 4.01)
5.05 Uneven stitch
1) Ensure thread and tension. (According to 4.04)
2) Unsuited stitch length and thread tension. (According to 4.04)
3) Incorrect threading. (According to 4.02)
5.06 Unstable needle penetration
1) Unsuited needle penetration and material. (According to 4.05)
2) Incorrect position of material. (According to 4.03)
3) Uneven position of material and hemstitch gauge. (According to 4.03)
4) Needle incorrectly inserted or damaged. (According to 4.09)
-- 9 -