SunStar KM-380BL, Руководство пользователя

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10) Adjusting timing of sub presser foot, upper feed presser foot and needle
KM-380BL/390BL
When the needle goes downward, the upper feed presser foot should already be contacted with the feed dog before the end
of needle touches with the upper side of feed dog . And when the needle goes upward and the end of needle removes
from the upper side of feed dog , the upper feed presser foot should be contacted with the feed dog . In case that these timings
are not coincided, loosen 2 presser foot vertical movement cam fixing screws
and adjust from side to side the fixed position of
vertical movement cam . (Refer to Figure 20)
[Figure 20]
<When the needle goes downward> <When the needle goes upward>
11) Adjusting feed dog height
KM-380BL
a. Bend the machine so that its lower side of bed revealed, and
adjust the pulley to place the feed dog at the highest point.
b. Loosen the screw and adjust the height by moving
vertically the feed dog .
(The standard position of the maximum height of the feed
dog is 1mm from the upper side of needle plate.)
c. When the height adjustment is complete, fasten tightly the
screw .
[Figure 21]
KM-390BL
a. Turn the pulley to place the feed dog to the highest point.
As in Figure 22, move up and down the feed dog with the
feed dog fixing screw
and the eccentric collar fixing screw
are loosened. The standard position the feed dog is 1mm
from the upper side of needle plate by moving the feed dog
up and down.
b. When the adjustment is complete, fasten tightly the fixing
screw with the eccentric collar is closely contacted with
the lower part of feed dog.
[Figure 22]