ELNA 450 - Troubleshooting: Minor Disorders

To remedy minor disorders
consult the instruction manual on the pages indicated, if:
Pages
The upper thread breaks
—- Needle not of the system 130/705H (15 x 1), of poor
quality, bent, not inserted ‘correctly ⋅ . . ∙ ⋅ . ⋅ . ∙ ⋅ . ∙ ∙ ⋅ 5
— Needle not suitable for the kind of work − . . . ⋅ ∙ ∙ ∙ . . . 33
— Incorrect threading or thread of poor quality ⋅ ∙ ⋅ . ⋅ ∙ ∙ 8-9
— Lower thread not drawn up properly . . ⋅ ⋅ ⋅ ∙ ⋅ ⋅ ⋅ ⋅ .10, 11
— Size of thread not suitable for the kind of work . ⋅ ⋅ ⋅ ⋅ ⋅ 33
— Machine needs cleaning ⋅ . . . . . ∙ ⋅ . . . . . ∙ . . ⋅ . . . . 63
— Upper tension too tight ∙ . . . ∙ ⋅ . ∙ . . . . ⋅ ∙ . ∙ ⋅ .11, 35
The lower thread breaks
— Thread not wound evenly on the bobbin or not drawn up
correctly . . . . . ⋅ . . ⋅ ⋅ . ⋅ ⋅ ⋅ ⋅ . ⋅ ⋅ . ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 6-11
— Lower tension too tight ⋅ ⋅ . ⋅ ⋅ ⋅ ⋅ . ⋅ . ⋅ ⋅ . ⋅ ⋅ ⋅ ⋅ .11, 35
The machine skips stitches
— Sewing foot not suitable for the kind of work ⋅ ⋅ . ⋅ . . . . 34
— Machine not threaded correctly . . . . . . ⋅ . ∙ . . . . . 6-11
— Needle not of the system 130/705H (15 x 1), is the wrong
way round, incorrectly inserted . ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ∙ ⋅ ⋅ ⋅ ∙ ⋅ 5
— Needle not suitable for the kind of work ⋅ ⋅ ⋅ ⋅ ∙ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 33
— Th read too coarse for the size of needle or not flexible
enough . ⋅ . . ⋅ ⋅ . . . . . . . . . ⋅ . ⋅ . ⋅ . ⋅ ⋅ . ⋅ ⋅ . . .5, 33
— Lower thread not drawn up correctly . ⋅ ⋅ ⋅ . ⋅ ⋅ ⋅ ∙ ⋅↿∘−↿↿
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Pages
The thread knots beneath the material
— The upper tension has not been threaded correctly.
Repeat the threading operation ⋅ . . . ⋅ . − . ⋅ . . . . . . 8-9
The material puckers
— Sewing foot not suitable for the kind of work . . . ∙ . ∙ ∙ ⋅ 34
— Thread too thick . ∙ . ⋅ ⋅ . ∙ ⋅ . . ⋅ . . ⋅ . ⋅ . ⋅ ⋅ ⋅ . ⋅ ∙ ∙ 33
— Stitch too long ⋅ . ∙ ⋅ ∙ ∙ . ∙ ∙ . . . ∙ ∙ . . ⋅ . ∙ . . . ∙ ⋅ ∙ 33
— Upper and/or lower thread tensions too tight . . ⋅ ∙ ⋅ ⋅ 11, 35
— Lower thread not drawn up correctly ∙ ⋅ . . . . . ⋅ ⋅ ⋅↿∘−↿ ↿
The material is fed unevenly
— Needle plate not fitted properly
— Sewing foot not lowered or not attached securely . . . . 4-5
— Sewing foot not suitable for the kind of work . ∙ ∙ ∙ . ∙ ∙ ⋅ 34
— Stitch length not suitable for job . ⋅ . ⋅ ⋅ ⋅ . . . . . . . . . 34
— Stitch length (for superautomatic stitches) not set at
"S" red ∙ . ⋅ . . . . . . ⋅ ⋅ . ⋅ . ∙ . . . . ⋅ . ⋅ ⋅ ⋅ ⋅ 24-29, 34
— Foot pressure not suitable for the kind of work . . . ⋅ . . . 15
— Dirty feed dog ⋅ ⋅ . . ⋅ ⋅ . . . ⋅ ∙ . ⋅ . ⋅ ⋅ . . ⋅ . ⋅ . ⋅ ∙ ⋅ ⋅ 5
It is not possible to obtain the stitch desired
— Stitches in the green zone: stitch length dial should be
set between ‘/2 and 4 ⋅ ∙ ⋅ . ⋅ ⋅ ⋅ . . . ⋅ . . . . . . . . . .18—23
— Stitches in the red zone: stitch length dial should be set
at ‘'3'’ red, in the notch . . . . . . . . . ⋅ . . ⋅ ⋅ ⋅ 24-29, 34
— Increase stitch width . . . . ∙ ⋅ ⋅ ⋅ ⋅ ⋅ ∙ . . . . . . ⋅ ⋅ ⋅↿ 2-13
— Feed dog has dropped down . ⋅ . . . . . . . . ⋅ . . . . .14—1 5
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