Sears 385.17724 owner manual Problem Probable Cause

Models: 385.17724

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PROBLEM

 

 

PROBABLE

CAUSE

 

incorrect

size

needle.

 

SMpping Stitches

Bent

or

blunt

needle,

 

incorrect

setting ot

needle.

 

 

Tight

upper thread

tension.

Starting to stitch too fast.

Improper threading.

Tight upper thread tension,

Breaking Upper Threadincorrect size needle.

Sharp eye in needle,

Nicks or burrs at hole of needle piate,

Breaking

Bobbin

Thread

 

Improper

bobbin

threading.

 

Lint in bobbin holder or hook race.

 

 

 

 

 

 

 

 

Darning

plate in

place.

Fabric

not Mowng

 

 

Stitch Length set at O.

 

 

Thread

knotted

under fabric.

 

 

 

 

 

 

 

 

Push-putt clutch is disengaged.

Machine

Jamming

Knocking

Noise

Thread caught m hook race.

Lmt {n bobbin holder or hook race.

 

 

 

 

COR RECTION

Choose correct size needle for thread and fabric. Insert new needfe.

Reset needle.

Loosen upper thread tension.

Start to stitch at a medium speed.

Rethread machine.

Loosen upper thread tension.

Choose correct slze needle for thread and fabric. Insert new needle.

Replace needle plate, or polish off burrs completely,

Check bobbin threading.

Clean bobbin holder and hook race,

Remove darning plate.

Adiust Stitch Length Control.

Place both threads back under presser foot before beginning to stitch.

Push in the clutch.

Disassemble and clean hook race.

Clean bobbin holder and hook race.

57

Page 60
Image 60
Sears 385.17724 owner manual Problem Probable Cause