−42 −
#1
#0
@9
#4
#3
#2
#8
#7
#6
#5
–
+
Adjustment Procedures Results of Improper Adjustment
Adjust the timing by
loosening the screw #0 of the
spreader eccentric cam @9
and rotating the spreader
eccentric cam @9 .
Adjust the stroke by loosening
the nut #1 and moving it back
and forth.
If it is moved toward you, the
stroke becomes small. If it is
moved to the back, the stroke
becomes large.
Adjust the height of the
spreader by loosening the
screw #3 and move the
spreader #2 up and down.
Adjust the clearance
between the spreader and
the left needle by loosening
the screw #3 and moving the
spreader #2 back and forth.
Adjust the extreme left
position by loosening the
screws #4 and move the
spreader #2 to the left and
right.
Adjust the fixed spreader
thread guide #5 by loosening
the screws #6 .
Adjust the needle clamp
spreader thread guide #7 by
loosening the screw #8 .
™ If the timing is too advanced,
skipping stitch is likely to occur
as when the needle decends, the
needle does not catch the
covering thread.If the timing is
too retarded, the right needle is
likely to be broken as the
resistance of the covering thread
becomes strong when it passes
the covering thread looper.
™ If the movement amount of the
spreader is not set right, skipping
stitch of the top covering thread
occurs.
™ If the height of the spreader is
not set right, skipping stitch of the
top covering thread occurs.
™ If the clearance between the
spreader and the needle is small,
the needle breaks. If it is large,
skipping stitch of the top covering
thread occurs.
™ If the protruding amount of the
spreader is large, uneven stitch
of the top covering thread
occurs. If it is small, skipping
stitch of the top covering thread
occurs.
™ If the height of the fixed spreader
thread guide is set about 4 mm,
the performance of the top
covering with the spun thread is
improved. But, for other threads,
it is likely to cause the defective
pick-up of the thread.
™ If the position of the fixed
spreader thread guide is not set
right, skipping stitch of the top
covering thread occurs.
™ If the position of the needle
clamp spreader thread guide is
not set right, skipping stitch of the
top covering thread occurs.
From the library of: Diamond Needle Corp
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