Problem
Cause
Correction
Upper thread breaks
Skipped stitches
Needle breaks
Loose stitches
Seams gather or pucker
Uneven stitches, uneven feed
The machine is noisy
The machine jams
1.The machine is not threaded correctly
2.The thread tension is too tight
3.The thread is too thick for the needle
4.The needle is not inserted correctly
5.The thread is round wound the spool holder pin
6.The needle is damaged
1.The needle is not inserted correctly
2.The needle is damaged
3.The wrong size needle has been used
4.The foot is not attached correctly
1.The needle is damaged
2.The needle is not correctly inserted
3.Wrong needle size for the fabric
4.The wrong foot is attached
1.The machine is not correctly threaded
2.The bobbin case is not correctly threaded
3.Needle/ fabric/ thread combination is wrong
4.Thread tension wrong
1.The needle is too thick for the fabric
2.The stitch length is wrongly adjusted
3.The thread tension is too tight
1.Poor quality thread
2.The bobbin case is wrongly threaded
3.Fabric has been pulled
1.The machine must be lubricated
2.Fluff or oil have collected on the hook or needle bar
3.Poor quality oil has been used
4.The needle is damaged
Thread is caught in the hook
1.Rethread the machine
2.Reduce the thread tension (lower number)
3.Select a larger needle
4.Remove and reinsert the needle (flat side towards the back)
5.Remove the reel and wind thread onto reel
6.Replace the needle
1.Remove and reinsert needle(flat side towards the back)
2.Insert a new needle
3.Choose a needle to suit the thread and fabric
4.Check and attach correctly
1.Insert a new needle
2.Insert the needle correctly (flat side towards the back)
3.Choose a needle to suit the thread and fabric
4.Select the correct foot
1.Check the threading
2.Thread the bobbin case as illustrated
3.The needle size must suit the fabric and thread
4.Correct the thread tension
1.Select a finer needle
2.Readjust the stitch length
3.Loosen the thread tension
1.Select a better quality thread
2.Remove bobbin case and retread and insert correctly
3.Do not pull on the fabric while sewing, let it be taken up by the
machine
1.Lubricate as described
2.Clean the hook and feed dog as described
3.Only use good quality sewing machine oil
4.Replace the needle
Remove the upper thread and bobbin case, turn the handwheel
backwards and forwards by hand and remove the thread remands.
Lubricate as described
Trouble shooting guide
GB
88
Summary of Contents for 6131A
Page 7: ...2 14 3 4 8 7 5 6 10 13 11 12 9 1 2...
Page 9: ...4 17 15 16 19 25 24 20 21 22 23 26 27 18...
Page 13: ...1 2 8...
Page 15: ...2 3 10 A B a b 1...
Page 17: ...B C 1 2 12 A...
Page 19: ...a b 2 1 14 A C B...
Page 21: ...g 16 b a 1 3 2 4 e a e b d c f e...
Page 23: ...18 1 2...
Page 25: ...20 B A 1 2 3 4...
Page 27: ...22 A B C D A C B 1 2...
Page 29: ...24 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10...
Page 31: ...26 1 2 3 4 A C D B B A...
Page 33: ...A B C 28 4 5 6 2 4 3...
Page 35: ...30 2 1...
Page 37: ...32 1 2 3 4 A B...
Page 42: ...37...
Page 43: ...s G H I J K C D E F B A 38 b c d e a...
Page 45: ...40 b c d e a A...
Page 47: ...42 0 1 2 3 4 S 4 3 2 1 0 5 7 4 3 2 1 0 6 5 5 0 1 2 3 4 6 7 1 2 B...
Page 49: ...S 0 1 2 3 4 5 0 1 2 3 4 6 7 a b 44 E F 1 3 4 2...
Page 51: ...S 0 1 2 3 4 5 0 1 2 3 4 6 7 a b 46 D H...
Page 53: ...3 1 48 2 a S 0 1 2 3 4 b B 5 0 1 2 3 4 6 7 a a b b a b...
Page 55: ...50 a b C D E B A 2 1 4 3 5 0 1 2 3 4 6 7 S 0 1 2 3 4...
Page 57: ...52...
Page 59: ...S 0 1 2 3 4 5 0 1 2 3 4 6 7 a b 54 1 2 A...
Page 61: ...5 0 1 2 3 4 6 7 a b 56 1 2 A S 0 1 2 3 4...
Page 63: ...S 0 1 2 3 4 a b 58 5 0 1 2 3 4 6 7 1 2 C 3...
Page 65: ...a 5 0 1 2 3 4 6 7 60 1 2 S 0 1 2 3 4 b S 0 1 2 3 4 b a 5 0 1 2 3 4 6 7 A B...
Page 67: ...a 62 5 0 1 2 3 4 6 7 S 0 1 2 3 4 b 1 2 C...
Page 69: ...a 64 5 0 1 2 3 4 6 7 S 0 1 2 3 4 b 1 2 B...
Page 71: ...2 66 5 0 1 2 3 4 6 7 a S 0 1 2 3 4 b 3 1 4 A a a b b a b A B C...
Page 73: ...68 a 5 0 1 2 3 4 6 7 S 0 1 2 3 4 b D G H b c a...
Page 75: ...70 S 0 1 2 3 4 b 5 0 1 2 3 4 6 7 a A...
Page 77: ...S 0 1 2 3 4 72 b 5 0 1 2 3 4 6 7 a A...
Page 79: ...74 S 0 1 2 3 4 b a 5 0 1 2 3 4 6 7 B...
Page 81: ...76 A b a 5 0 1 2 3 4 6 7 S 0 1 2 3 4...
Page 83: ...78 5 0 1 2 3 4 6 7 a S 0 1 2 3 4 b 1 2 B a a b b a b...
Page 85: ...80 S 0 1 2 3 4 b 5 0 1 2 3 4 6 7 a A...
Page 87: ...82 5 0 1 2 3 4 6 7 a b A S 0 1 2 3 4...
Page 89: ...a 5 0 1 2 3 4 6 7 S 0 1 2 3 4 b 84 1 2 K...
Page 91: ...86 a b A 1 B 2 B 3 B 4 A 2 B 1...
