Sears 17830, 17892, 17840, 17891, 17842, 17871, 17651, 17832, 17831, 17843 More lS8 on RD NSlON, Balance

STRAIGHT STITCHING

Decrease ktereue

temllotl tensioh

	Top stitch
too tight	too lOOse
ZIGZAG	STITCHING

For molt febdu the top thread tlm_on control

_o,ld be ut inthewhitezonebetwwn3 endS.

If, when you start to sew. you find that the

ztJtchlngisIrr_ulK, youwill needto adjustthe tension_,

+"w

Make any adjustrnlmtl with ptess_ foot 'down.

1, If the lhrsadl ore kx_king on the top iu_face

withthetopthrsadlytngftat,the lop_	is
tOO tioht. Timeton can be _	by

turning the tension centre4 to the teh (lower

n, ml_rs).

2, If the m/area is heppenin9 with the threads

onthe undemideof the fe_o, the tonzlonis

too loeb, This can be oorreCt_ by tumtn9

the tensioncontrol to the right (higl_

numberz),

ZIGZAG STITCHING

h r _ i r i i

MORE _lS8 ON _R_D _NSlON

A perfect stitch is obtained when the tension is well balanced, but the tension balance may

vary according to the type end size of _le, thread and fabric, The fabdc determines size of

thread and needle, The presser foot pressure and the thread tension control should also be

adjusted properly,

FABRICS:

Heavy fabric, stiff . increase top thread tension, Use larger size needle, heavier thread and longer stitch length,

zigzag setting, the more chem_e there Is of

puckering, If this occurs decrease the top tar.don ilightly and/or reduce the zl_ag width.

BOBBIN THREAD TENSION

In the cm of zigzag stitching, the wider the The bobbin thread tension has been correctly

set at the factory, so you do not need to adjust it,

i i ,

BALANCE

Heaw fabrics, soft - Decrease top thread tension. Use longer stitch length,

Light, sheer fabdcs - Oecrease top thread

tension and presser foot prate. Use shorter stitch length, Sew slowly,

THREADS:

Poiyester and silk, Decrease top thread tension. Nylon- Increase top thread tension,

18