Bernina 532-2 User Manual
Page 54
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Bobbin deformed or jamming in case.
Needle hole in throat plate damaged by needle, requires repolishtng.
Faulty Stitchaa
Unsuitable needle. Use needles System 706.
Needle blunt or bent.
Needle not property inserted. Long groove must face front. Push needle home completely.
Inferior, badly polished needle.
C h e a p
needles
o f t e n t e a r
thread and break easily. This may cause costly damage to
throat plate and feed dog.
The best needle is the most economical in use.
Needle not in proper relation to thread number.
Needle Breakage
Needle bent.
Needle too fine in relation to thread.
Needle holding screw not properly tightened.
Top thread tension excessive.
When the work is pulled towards the operator on completion, the needle often bends.
When the needle performs the first stitch subsequently, it fouls the throat plate and
breaks. Therefore always pull work away from pou from under the presser foot.
During sewing, however, the work should not be pulled away from you
t o o
Лап/.
102
Use of cheap thread which is unevenly twisted or even knotty. A single knot on a
thread reel may break the needle and even damage the throat plate so that fur more
expense may ensue than by securing the best possible thread.
Stow Operation of Machine
Motor too heavily oiled causing collector to be oily. (See Instructions for Lubrication
on Page
2 7 . )
Call mechanic !
Machine (not motor) insufficiently oiled.
Thread ends in the shuttle race.
Machine blocked by resinified oil. Plush machine with petrol and oil again. In stubborn
cases, the machine must be disassembled. If machine has stood in a cold room, it should
be placed in a warm room, open, for about
o n e
hour so that it will assume room tem
perature and the oil in the bearings can get liquid again.
Work Pucker*
In most cases this is caused by excessive tension in relation to type of work. When
sewing Knitted Goods, never pull work away from you with your hands which will
cause work to pucker. It is advantageous, on the contrary, to assist the forward move
ment by pushing.
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