−53 −
3) Adjustment of stationary knife and looper thread clamp spring
Overlapping amount between the catching part
in pointed end of movable knife !0 and pointed
end of stationary knife 9 is to be 0.5 mm.
The distance from pointed end of movable knife
!0 to clamp spring !1 is to be 3.2 mm from
stationary knife 9 to the top end of flat spring
!2 to be 0.5 mm.
MFC
Standard Adjustment
0.5 mm
9
3.2 mm
0.5 mm
9
!1
!2
4) Adjustment of the position of movable knife’s pointed end
™ Position of stopper plate
When looper moves forward all the way
to its limit, push on the thread trimmer
cylinder by hand so that the distance from
the pointed end of stationary knife to the
rear of looper is to be 12.5 mm under the
state mentioned below.
™ The movable knife’s pointed end is to be
in line with the ridgeline in the flat section
of looper top face.
™ Stopper plate !5 is to be in contact with the
lever @1 .
0.1 mm
Looper
12.5 mm
Clamp spring is
not permitted to
contact the rear
of looper
Looper
To be in line
with this line
Movable knife’s
pointed end
Looper
12.5 mm
!0
!0
9
!0
!5
@1
!0
!0
From the library of: Diamond Needle Corp
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