16, Adjusting The Height Of The Needle Bar; 17, Adjusting The Height Of The Presser Foot - HIGHLEAD GC22618 Instruction Manual Parts Catalog

Cylinder-bed unison feed sewing machine
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15 .. RELATIVE POSITION OF THE FEED DOG TO NEEDLE PLATE
(Fig.17)
1) Set the stitch length at
minimum.
2) Tum the pulley so as to raise the
feed dog to its highest point.
3) Lay down the machine head toward
the other side, loosen the screw (E).
4) Adjust the needle plate to the center
of the needle hole on the feed dog.
5) Tighten the screw.
· 16 .. ADJUSTING THE HEIGHT OF THE NEEDLE BAR (Fig.18)
When the needle bar is at its highest
position, normally the measurement between
the surf ace of the needle plate and the upper
end of the needle eye is 22.3mm. To adjust
this, loosen screw (
B)
(Fig.3), and raise or
lower the needle bar as may be required.
Then tighten the screw.
22.3nun
Fig.17
r----''---.......c::::~----.-1
Fig.18
17.. ADJUSTING THE HEIGHT OF THE PRESSER FOOT (Fig.19)
1) Adjustment by the presser bar lifter
Loosen the screw (1), raise the presser bar lifter and loosen the setscrew (2), move the lifting presser
foot up or down as may be required so as to get the correct height and tighten screws.
2) Adjusting the lift of alternating presser foot
If the height of the lifting presser foot changes, the momentums of the lifting and vibrating presser foot
vary, thus the height of the vibrating presser foot must be adjusted. Lower the presser bar lifter, holding the
vibrating presser foot and loosen the screw (3) and move the presser foot up or down as may be required.
After setting the position, tighten the screw.
- 8 -

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