SINGER 631 User Manual

Page 16

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CUiniNC AND SUPPORTING PABRIC

Most iabrics

iioed

only to

1)(; (juiiiod

in froiit of

;

piessei loot.

i'abiirs of umisual tt'xtuie and woavo, filmy

kkos

CK'pos, kniis, tikots, otr., !iK|uiie supj)oit whilo

being sUldieii.

For Mich fabrics, use 11

! 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.