JUKI MO-6000S series Engineer's Manual page 51

Adjustment Procedures
1) Loosen setscrew 1 in the top feed dog and move top feed dog
2 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 2 is removed and personal
injuries may occur. Use a rather large-sized
screwdriver and securely fix setscrew 1 in
the top feed dog.
Results of Improper Adjustment
™ When top feed dog is installed
higher than the standard
S e w i n g o f h e a v y - w e i g h t
materials is possible.
H o w e v e r , a c l e a r a n c e i s
provided between top and
bottom feed dogs, and partial
shirring performance of light-
weight materials or feed force
is decreased.
™ When top feed dog is installed
lower than the standard
Partial shirring performance or
f e e d f o r c e i s i n c r e a s e d .
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.
™ In case of sewing heavy-weight
materials
It is possible to sew even when
vertical stroke is increased.
R e f e r t o " ( 2 7 ) V e r t i c a l
momentum of the top feed dog".
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