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Adjustment Procedures Results of Improper Adjustment
™ If the clearance between the rear
needle guard and the needle is
large, it causes the skipping
stitch, the damage of the blade
point of the looper and needle
breakage.
™ If the rear needle guard and the
needle hits strongly, it will cause
the damage of the needle top.
™ If the clearance between the
front needle guard and the
needle is large, the loop
becomes small and the skipping
stitch will occur.
™ If the front needle guard and the
needle hits strongly, the loop
becomes large and the skipping
stitch, the damage of the needle
point and the damage of the
blade point of the looper will
occur.
™ Adjust the height of the rear needle guard by loosening the
screw !2 and move the rear needle guard !1 up and down.
Adjust the pushing amount by loosening the screw !3 and move
the rear needle guard back and forth.
™ Adjust the height of the front needle guard by loosening the
screw !5 and move the front needle guard !4 up and down.
Adjust the inclination at the same time. Adjust the clearance
for the needle by loosening the screw !6 .
(Caution) Use a 3/32" hexagonal wrench for the screw !3.
Check that there is no looseness on the left/right
sides of the rear needle guard when tightening the
screw !3.
™ Adjust by loosening the looper base setscrew 4 and move
the looper holder back and forth.
™ If the clearance is large, skipping
stitch of the needle thread
scooping occurs. And the
damage of the needle point will
occur due to the strong hit on the
back of the looper.
™ If the clearance is small, the
damage of the blade point of the
looper and the needle breakage
will occur. And, the skipping
stitch will occur as the clearance
between the back of the looper
and the needle becomes large.
(Old type) (New type)
!6
!3
!5
!1
!2
!4
!1
!2
!3
!4
!5
!6
From the library of: Diamond Needle Corp
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