JUKI MF-7900 Series Engineer's Manual page 50

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
4. Longitudinal position of the feed dog
(1) Position of the main feed dog :
it is the standard that the position where the clearance from the edge of the slot of the throat plate to
the front face of the main feed dog is 0.6 ± 0.2 mm at the position where the main feed dog travels to
the extreme front position (operator's side) when feed momentum is set to 3.6 mm (maximum).
(2) Position of the differential feed dog :
it is the standard that the position where the clearance provided between main feed dog and differen-
tial feed dog is 1.6 ± 0.2 mm when the differential feed ratio is set to 1 : 1 after adjusting the position
of the main feed dog.
Standard adjustment
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