Anita Garudan GF-1130-448 MH/L34, User Manual, Page: 24 / 71

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MP05300EN,MP05400EN_200120 GF-1130-448,GF-2230-448 MH/L34 24
F TROUBLESHOOTING
Problem Cause Solution
1. Broken thread
(2 - 3 mm left on the
bottom side)
1. Damage int the path of
thread, damaged tip of the
needle or the hook. 1. Sand the surface with
sandpaper. Sand the hook
with a file.
2. Upper thread tension is
too high. 2. Reduce the upper thread
tension.
3. The needle is touching the
tip of the hook. 3. Adjust the distance
between the needle and the
hook (see D8).
4. Insufficient oiling of the
hook. 4. Adjust the amount of
lubrication (see E2).
5. Upper thread tension is
too low. 5. Increase the upper thread
tension.
6. The thread lever spring is
too strong, the range of
movement is too small. 6. Reduce spring force,
increase the range of
motion.
7. Incorrect timing of the
needle and hook. 7. Adjust needle and hook
timing (see D8).
2. Skipping stitches
1. Incorrect timing of the
needle and hook. 1. Adjust needle and hook
timing (see D8).
2. Foot pressure too low. 2. Increase the foot pressure.
3. Incorrect distance
between needle eye and the
hook tip.
3. Adjust the distance (see
D8).
4. Incorrect needle type. 4. Change the needle.
3. Thread too tight
1. Bobbin tension spring too
tight. 1. Lower the bottom thread
tension.
2. Threads are threaded
incorrectly. 2. Check the threading of
upper and bottom thread.
3. Bobbin doesn’t move . 3. Check the bobbin.
4. Bottom thread tension is
too low. 4. Increase the bottom
thread tension.
5. Bottom thread too thick. 5. Use the thinner thread.
6. Damaged tip of the
needle. 6. Change the needle.
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