JUKI MO-6000G Series Engineer's Manual page 51

Adjustment Procedures
1) Loosen setscrew
8
in the top feed dog and move top feed dog
8
up or down to adjust the height.
(Caution) 1. Perform the adjustment in the state that the
standard top feed pressure is applied.
2. Top feed dog
8
is removed and personal
injuries
may
occur. Use
a rather large-sized
screwdriver and securely fix setscrew
8
in
the top feed
dog.
-47-
Results of Improper Adjustment
o When top feed dog Is installed
higher than the standard
Sewing of heavy-weight
materials is possible.
However, a clearance is
provided between
top
and
bottom feed dogs, and partial
shirring performance of light-
weight materials or feed force
is decreased.
o When top feed dog is installed
lower than the standard
Partial shirring performance or
feed force is increased.
However, when overlapping
amount of top and bottom feed
dogs is excessively increased,
feed dog defect is apt to occur.
Besides, sound may become
higher.
o
In case
of sewing
heavy-weight
materials
It is possible to sew even when
vertical stroke is increased.
Refer to a(27) Vertical
momentum of the top feed dog~.
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