Pfaff 467 User Manual

19. Timing the Check Spring
The thread check spring serves to assist the take-up lever in taking up the slack thread which
occurs as the lever descends, but is not yet required for the formation of the stitch. The down
ward stroke of the thread check spring is limited by a stop on the check spring regulator and
can be adjusted by turning the regulator, as appropriate.
On the new high-speed seamer, the thread check spring regulator can be turned easily after
loosening set screw k (Fig, 34) on the underside of the tension barrel. In order to be able
to time the thread check spring correctly right away, without trying out different settings first,
you must be fully conversant with its function.
The thread check spring is correctly timed if it is through acting when the needle reaches the
goods.
To increase or decrease the check spring tension, simply turn the tension stud in the tension
mechanism. Turn it clockwise to increase the tension, or counter-clockwise, to decrease it.
If turning the tension stud with a screwdriver should prove impossible, loosen screw k (Fig. 34)
and take out the complete tension mechanism. Slightly loosen the set screw at the rear end
of the thread check spring regulator. Then readjust the stroke of the spring meticulously.
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From the library of: Superior Sewing Machine & Supply LLC

Pfaff 467 Specifications

General

Brand	Pfaff
Model	467
Category	Sewing Machine
Language	English