HIGHLEAD GC0518-1 Katalog Suku Cadang Manual Instruksi - Halaman 8

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HIGHLEAD GC0518-1 Katalog Suku Cadang Manual Instruksi

14 RELATIVE POSITION

OF THE FEED DOG

TO NEEDLE PLATE (Fig 13)

1 ) Set the stitch length at minimum.

2 ) Turn the balance wheel so as to raise the feed

dog to its highest point.

3 ) Lay down the machine head toward the other

side and loosen the screw 5 (Fig 4).

4 ) Adjust to be 32.1mm from the edge of the

needle plate to the center of the needle hole on

the feed dog. (Fig 13)

5 ) Securely tighten the screw.

15 THE POSITION OF THE

NEEDLE AND

THE NEEDLE HOLE OF THE

FEED DOG

Turning the balance wheel to lower slowly the needle

bar, check whether the needle descends to the center of

the needle hole of the feeder or not. (Please check again

the needle is perfect one.)

1 ) Remove the cover G (Fig 2) and loosen the screw 1

(Fig 14) slightly.

2 ) Holding the bottom of the needle bar rock frame H

(Fig 3), move it as may be required to get the correct

position to the feed dog.

3 ) Tighten the screw and close the cover.

16 TIMING THE NEEDLE

WITH FEED DOG

(Figs 15, 16)

It is important that the timing relationship between

the needle on its downward stroke and the feed dog

movement is maintained at all times. When the scarf of

the needle on the downward stroke reaches the top

surface of the feed dog, the feed dog movement must

start. When adjustment is required, use the following

procedure to change the position of cam.

Fig 14

Fig 15

Fig 13

32.1mm

Fig 14