Janome 4120QDC Handleiding
Janome
Naaimachine
4120QDC
Lees hieronder de 📖 handleiding in het Nederlandse voor Janome 4120QDC (28 pagina's) in de categorie Naaimachine. Deze handleiding was nuttig voor 51 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
Pagina 1/28
SERVICE MANUAL
4120QDC
INDEX
What to do when................................................................................................................................ 1 - 3
Changing External Parts
Face Cover 4 ..............................................................................................................................................
Free-arm Cover 5 ......................................................................................................................................
Front Cover........................................................................................................................................ 6 - 7
Rear Cover 8 ..............................................................................................................................................
Mechanical Adjustment
Presser Bar Height 9 ..................................................................................................................................
Needle Drop Position.............................................................................................................................10
Adjustment of Hook Timing....................................................................................................................11
Adjustment of Needle Bar Height 12 ..........................................................................................................
Clearance between Needle and Tip of Rotary Hook 13 .............................................................................
Feed Dog Height 14 ...................................................................................................................................
Top Tension ...........................................................................................................................................15
Replacing the Electronic Components
Circuit Board-A Connection 16 ...................................................................................................................
Self-diagnostic Test ......................................................................................................................... 17-22
Circuit Board-A ......................................................................................................................................23
Driving Motor 24 .........................................................................................................................................
Switching Regulator Unit 25 .......................................................................................................................
Adjusting Buttonhole Lever Position 26 ......................................................................................................
Parts List 27-41 .......................................................................................................................................
1
Condition Cause How to fix RefeRenCe
1. Skipping
StitcheS
1. needle iS not inSerted
properly.
2. needle iS bent or worn.
3. incorrectly threaded.
4. needle or thread are
inappropriate for the
fabric being Sewn.
5. Sewing on
Stretch fabric.
6. inappropriate needle
bar height.
7. inappropriate needle to
hook timing.
8. inappropriate needle to
hook clearance.
inSert the needle properly.
change the needle.
rethread.
USe the recommended Sewing
needle and thread.
USe a ha x #11 blUe tip needle.
See mechanical adjUStment
“needle bar height”.
See mechanical adjUStment “ad-
jUStment of hook timing”.
See mechanical adjUStment
“clearance between needle
and tip of the rotary hook”.
p. 12
p. 11
p. 13
2. fabric not
moving
1. incorrect feed dog
height.
2. feed dog iS in down
poSition.
3. thread on bottom Side of
fabric iS jammed Up.
4. feed dog teeth are worn.
adjUSt the preSSer bar level
to make the preSSUre Stron-
ger. See mechanical adjUSt-
ment “feed dog height”.
raiSe the feed dog.
make SUre to bring both needle
and bobbin threadS Under the
foot when Start Sewing.
change the feed dog.
p. 14
wHat to do wHen
Product specificaties
| Merk: | Janome |
| Categorie: | Naaimachine |
| Model: | 4120QDC |
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