−16 −
!7
!3
!4
!5
!6
!7
!8
Adjustment Procedures Results of Improper Adjustment
Open the cover located at the rear side of the needle entry.
™ Adjust the longitudinal position of the main feed dog after
loosening the nut !3 and rotating the eccentric nut !4.
™ Adjust the longitudinal position of the differential feed dog after
loosening the nut !5 and rotating the eccentric nut !6.
™ If the left/right positions of the
feed dog are incorrect, the left/
right sides and the throat plate
will wear out.
™ Heating and abnormal noise will
be produced.
™ The feed components will wear
out early. And, the looseness,
bending and abnormal noise will
be produced.
™ Adjust the inclination of the feed dog after loosening the screw
!7 and rotating the eccentric shaft inside with a slit-screwdriver
through the hole !8.
™ If the position of the feed dog is
high, it causes the return feed,
skip stitching and defective
chain-off.
™ If the main feed dog, differential
feed dog and throat plate come
in contact each other, it will
cause the breakage.
™ If the position of the feed dog is
low, the stitch length becomes
short when the sewing is
finished.
™ If the inclination of the feed dog
is raised toward you, starting of
the workpiece will be affected.
™ If the inclination of the feed dog
is lowered toward you, it may
cause the irregular stitching and
puckering.
™ Loosen the screw !9 and adjust the height of the main feed
dog @0.
™ Loosen the screw @1 and adjust the height of the differential
feed dog @2.
@0
@1
@2
!9
From the library of: Diamond Needle Corp
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