Sewing Problems And Solutions - Pfaff Hobbylock 794 Instruction Manual

Sewing problems and solutions
This machine is easy to operate and there are no difficult adjustments to be made. Problems, sim ilar
to the ones described below, occur because of simple adjustment errors. They can easily be corrected
by the solutions offered .
Problem
Cause Solution
Material is not fed
Sewing foot pressure too
Turn sewing foot pressure
scr~w
correctly
weak
clockwise to increase pressure.
Needle breakage Needle bent
Insert new needle.
or point damaged.
Needle not correctly inserted.
Insert new needle correctly
(see page 23).
Material pulled Do not pull or push material
during sewing.
Thread breakage
Incorrectly threaded Thread correctly
(see pages 7-11).
Thread has caught
Check whether thread catches
at the reel stand, etc.
Thread tension too tight
Regulate tension ,
(page 15, 16).
Needle not correctly inserted
Insert needle correctly (page 23).
Incorrect needle used
Use needle system DB x 1
(or 1738).
Skipped stitches
Needle bent or damaged Insert new needle.
Needle not correctly inserted Insert needle correctly (page 23).
Incorrect needle used Use needle system DB x 1,
or 1738
Incorrectly threaded
Thread correctly (pages 7- 11).
Sewing foot pressure too Increase sewing foot pressure.
weak
Incorrect stitch Incorrect setting of thread
Set thread tensions correctly
formation
tensions
(pages 15, 16).
Puckered seams Thread tension too tight
Reduce thread tension (espe-
cially for light materials)
pages 15, 16.
Thread has caught due to Thread correctly (pages 7- 11 ).
incorrect threading
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