INSTRUCTION MANUAL
siz e: 6. 75* 10 .2 5英寸
Why is th e threa d loopi ng/bu nchin g under m y fabri c?
Threa d loopi ng unde r your fa bric is u suall y cause d by not th readi ng the up per ten sion
corre ctly. Wit h the pre sser fo ot leve r in the UP p ositi on and te nsion s et at 4, fo llow th e
threa ding gu ides/ graph ics on th e top of th e machi ne.
1.Pla ce the th read sp ool on th e spool p in and se cure wi th a thre ad spoo l cap.
2.Whi le hold ing the t hread w ith you r right h and, us e your le ft hand t o take th e threa d and
take th e threa d and fol low the t hread p ath by br ingin g the thr ead dow n into th e tensi on
chann el arou nd the bo ttom an d up the ot her sid e.Con tinue t o threa d the mac hine, b ut do
not thr ead the n eedle .
Befor e threa ding th e needl e, perf orm thi s easy te st to mak e sure th e upper t hread i s
threa ded cor rectl y. Making s ure the p resse r foot is r aised , pull th e threa d. It sho uld pul l
easil y. Now lowe r the pre sser fo ot, the t hread s hould n ow resi st when y ou pull i t. Ther e
shoul d be a sign ifica nt incr ease in t he tens ion of th e threa d. If the re is no in creas ed
tensi on, the m achin e is not th reade d corre ctly.
Why is my m achin e skipp ing sti tches ?
Skipp ed stit ches ca n occur i f needl es are da maged o r dull, o r if they a re inco rrect ly
inser ted int o the mac hine.
First , your ne edle ma y be dull o r damag ed and ne ed to be re place d. You shou ld also
check t hat you a re usin g the cor rect ne edle fo r the typ e of fabr ic you ar e sewin g. Refe r
to the Ne edle/ Fabri c/Thr ead/G uide on p age 11 of thi s manua l.
Next, c heck th at the ne edle is i nstal led cor rectl y. The need le need s to be pus hed as fa r up
the nee dle sha ft as pos sible . (It's e asy to in sert th e needl e halfw ay, clamp i t down an d think
it is ins talle d corre ctly.) Als o, the fl at part o f the nee dle sho uld be po sitio ned tow ards th e
back. I f the nee dle is no t insta lled co rrect ly, it will n ot be abl e to pull u p the bob bin thr ead
and wil l cause s kippe d stitc hes.
Vivo -1004