SINGER 631 User Manual
Page 16
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CUiniNC AND SUPPORTING PABRIC
\
Most iabrics
iioed
only to
1)(; (juiiiod
in froiit of
11
k
;
piessei loot.
i'abiirs of umisual tt'xtuie and woavo, filmy
s
I
kkos
,
CK'pos, kniis, tikots, otr., !iK|uiie supj)oit whilo
being sUldieii.
For Mich fabrics, use 11
k
! straight .stitch throat plate' and
¡HCSSf't
foot, and ajtply gontlc tensiou to trie
seam by hoiriing tfie fabric in fioni and in b.ick of the prossei foot as iliustrated.
Pin-SSUiO; AOJUSTMP.N'I'S
Increase
Decrease
Position for darniric)
and cmlH'oidcny
operation.s
Pressure, is tlie force tlie picsser foot exerts on fabiic
while it is Ixnng stitdred.
The presser foot inrist bo lowered prior to adjustments.
Sniootli, even haridiing of .several thicknesses of (abtic
result.s when pr<;ss«r<; is correctly regulated. Heavy pres
sure is for thick fabiic and tigiit ¡rrcssure is for thin fabric,
'I'oo light a pressure will result in itregtilar feeding which
affects both (|nality of slildi and evenness of scams.
Too heavy a pressure not crnly affects stitch and sciarn
(¡uality tnil will also rnar smooth surfaces and pile fabrics.
Surface finish, as well as the wrnghl and texture of the
fabric-, must be eousidcred iir determining the anrottnt of
prcKisurc; ncieded.
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