−61 −
%1
%2
MFC
Standard Adjustment
10) Adjustment of top covering thread trimmer
Make adjustment such that the top covering thread cutting movable knife %1 comes to the center in V-
shaped slot of spreader when the sewing machine is at rest, and does not contact the spreader %2
and the top covering thread when the movable knife %1 is open.
±0.5 mm
Top covering
thread
Movable
knife
open
Movable
knife
close
%3
%4
%6
%5
%1
%8
%7
%9
(Old type)
Adjusting cover thread trimme
The following adjustments are made with the needles at top dead center.
(New type)
^5
^6
^9
^7
^8
1.5 to
2mm
^0
&0
^1
^0
^3
^4
^2
Clearance between top end of
moving knife and spreader
0.2 to 0.4 mm
Clearance between top end of moving
knife and left side of left needle
0.2 to 0.4 mm
From the library of: Diamond Needle Corp
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