Bedienungsanleitung Singer 29K71 (Seite 10 von 13) (Englisch)

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TO REGULATE TAKE-UP LEVER

WITH REGULATOR INDICATOR

The spring tension on take-up lever J, Fig. 29 is adjusted

by thumbnut K. The tension on this lever should be about

the some as that applied to the upper thread by the tension

discs.

When the stitch is set, at the top of the needle bar stroke,

lever J should be held down for enough by the tension of

the thread so that the take-up action will keep the thread

tout until the needle enters the work.

When sewing lightweight materials with fine thread, more

take-up action may be secured by turning the thumbnut K

so that it screws up to decrease the take-up spring tension.

This should be done instead of tightening the thumbnut of

the tension discs.

For heavier materials and thread, the take-up tension must

be about the some as that applied to the upper thread by

the tension discs.

The travel of take-up lever J is regulated by means of

knurled nut L. The indicator near nut L is marked with the

figures O to 4. This indicator provides a useful guide to

the operator in setting the take-up movement most suitable

for the material and thread being used. For thin materials,

such as kid or box calf, turn knurled nut until the zero

mark is opposite the small plunger U.

Other adjustments can be made in steps by turning the nut

to suit any thickness of material and thread within the

capacity of the machine.

NOTE: All machines sent out from the factory are so

adjusted that they will give satisfactory results on a

general range of materials. Before any adjustment is made

to the travel of the take-up lever, the needle bar should be

raised to its highest point.

Fig. 29. Regulating Tension and Travel of Take-up Lever

ADJUSTMENT OF THREAD TAKE-UP

LEVER REGULATOR INDICATOR

The range of adjustment given by the indicator, when sent

out from the factory, should suffice for all general

purposes, but, if desired, the range can be raised or

lowered by means of the adjusting screw T, Fig. 29 at the

extreme right.

To alter the range, loosen the lock nut S and, using a

screwdriver, turn the centre screw T to the right to reduce

the travel of the take-up lever.

To increase the travel, turn the screw T to the left. Wear at

the tip of the centre screw can also be taken up in this

manner. When the proper adjustment has been obtained,

tighten the lock nut S.

It is most important that the hexagon head nut R be

securely locked against the face of the piston.

TO CHANGE LENGTH OF STITCH

The length of stitch is regulated by the stitch regulator

which is held in position by thumbscrew M, Fig. 30 at

back of the feeding foot bar. Loosen thumb screw M and

move the regulator up or down until its top is in line with

the mark indicating desired number of stitches to the inch

as shown by the arrow. Then tighten the thumb screw.

Fig. 30. Changing Stitch Length

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Singer 29K71 Seite 10

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