typical GC20606-1-D2, Инструкция по эксплуатации

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10
31
29
30
5.3.2 Resetting the safety clutch device
a. While pressing down the button in the bed surface
with left hand, turn the balance wheel slowly with right
hand in the direction shown in Fig.29.
b. When the stop plate stops the balance wheel, more
strength is required to turn the balance wheel to reset
the safety clutch device.
c. Release the button. Then the resetting is OK.
5.3.3 Adjusting the strength on the safety clutch device
(Fig.30)
a. When the white mark of the eccentric pin aims at the
center of the rock shaft, it indicates that the strength on
the safety clutch device is at the minimum. When the
white mark points the outside, the strength is properly
increased.
b. To regulate the strength of it, move the teeth-belt
and loosen the set screw of the eccentric pin, then turn
the eccentric pin.
c. After adjustment, please tighten the set screw.
5.3.4 Upper feed adjustment (Fig.31)
If the upper and lower feed are not in timing during
sewing, the long hole of the horizontal feed crank
should be adjusted to get the length of the upper feed.
Adjust as follows:
Loosen the special bolt;
Move the special bolt upward to reduce upper feed
amount;
Move the special bolt downward to increase the feed
amount. Theoretically, when it is on the reference line
of the horizontal feed crank, the upper feed amount
equals to the lower feed amount;
After adjustment, tighten the special bolt.
Balance wheel
Button
White mark
Tighten
Loosen
Eccentric
Belt
Lower shaft
Set screw
Link
Crank(right)
Reference line
Special bolt
Decrease the upper feed amount Decrease the upper feed amount
Increase the upper feed amount Increase the upper feed amount