SINGER 631 - Manual (Page 8)

PKINCIPAL PARTS OP MACHINE 031
3 Piessci P'ool Screw
6 Pressui'« Reloiise
BuUoi)
y TJnoad T<ike-itp
I.over
8 Pre-te(!sion
9 Patteni Selector
Builoes
iO Stitch Width Lever
H Stitch Chart
12 Liyht Switch
13 Thread Guide
14 Spool Spiiuile
15 Thread Lead-off
10 Spool Stiat
17 Bobbin Winder
HngagiiKj Lever
18 Hiiud Wheel
19 Bobbin Winder
Spindle
20 Stilch Length
Regulator
21 Bobbin Winder
Pre-tension
22 Bulb Replaccnrent
Lever
23 Cloth Plate
Disenyagiiiii Ihrllon
15
STITCH U;NGTH INDICATOR
Numerals on the left sidci of the indicartor repre­
sent the mimbcu' of stitches pcrr inch. Numerals on
the right side represent stitch length in millimelcr.s,
A supertinc control can be made in case ot stitch
huKjths less than 1 mm or stitches per inch {2,0).
The greatest stitch Icmglh ol 4 nun or 0 stitches per
inch can be locked in place when slitdiing folds,
phrats or muiUph; layers of heavy fabric.
To set stitch length; Loosen by liiming tluimb nvd
to the left as shown, Position lover for desired stilch
length. Tkjlden by lutning thumb mit to the liglit.
By raising the stitch length regulator to the hig­
hest point, reverse sUtdung is accomplished at the
same stitch length as forward. When in locked posi­
tion, 4 inrn or stilches ¡rer inch (G) cannot be rever­
sed. If reviuso stitching is ch'sired with thi.s stilch
length position, turn thumb mil to the left unlil the
stitch length regulator can bo adjusted to its highest
point al revcr.so stitching.
16
LJNLOCK.S
::-W )
■ IH
KLVliRSH
It
LOCKS