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Check, g Performance Problems WHAT TO DO
i
:_i;i'PROBEEM_;::_ PROBABL E:::CAUSE CORRECTION
: Loose:upper thread.-ten=ion:
i_,=_i ..... |.igh,p,_ure:o_p:_,: foot.
.....' :::-:-Stitches Loosepmsser foot. :._:::
Unevenly _ ound:bobbin.
Nicks or burrs on :.shuttle.
Nicks or burrs at:hole of needle
Incormctisize ne_dl_:: :::-+:::: := . Choose correct size needle for thread:and:fabric.
improper::thmading_;i-::: ::::::i:::__::-:: :=::_: ,Rethmad machine.
plate.
Breaking
Needle
Bunching of
Thread
Pulling fabric: i:::i: ::
incorrect size needle.
Incorrect setting:of needle..
Loose presserfoot:i
Upper and lower threads not drawn
back under presser foot before
starting seam,
Tighten:upper thread tension;
Do not pull_fabric; guide it gently.
Increase:pressureon:presser foot;
Reset presserfoot, "
Rewind bobbin.
Replace shuttle; or polish off burrs_completely.
Replace needle plate;or polishoff:burrslicompletely.
Do not pull;fabric;guide it gently. :i : :;il
Choose correct size needle•for threadand fabric.
Reset needle.
Reset presserfoot. -i_.:.....
When starting a.seam be sum to draw_both threads tmd(_rand
back of presserfoot about 4" and hold::iuntila fewstitches
ere formed, :_
Incorrect thmad tension(s), Reset thread:tension(s).:
Light pressure on::presserfoot. Increase pressure on presserfoot.
"''usingtw°_dztterent:::szzes:°r-'-_ :_ " kinc!_ii: Upper thread and bobbin thread should;be same size and kind.
• ' '- .::_::_::._:-" ':: .._:*:_"_:_'_i_:?;:i_'_'i:!;::_ :_::i:i: ,:.-;_:__: _'::: .. :',_ ......',' ';.:":':_'"'_":_: ' 'i :):_::. .:;..::{:_::.;:.::_:. ::::...;.; :':_'::.i._ :. • :._ : :' -i':':!: